From patchwork Fri Jan 13 06:23:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642582 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D20EEC71148 for ; Fri, 13 Jan 2023 06:25:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240559AbjAMGZP (ORCPT ); Fri, 13 Jan 2023 01:25:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231345AbjAMGYV (ORCPT ); Fri, 13 Jan 2023 01:24:21 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EDB1F5C1F3; Thu, 12 Jan 2023 22:23:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=ac+u1KmnA6x62YBZ9iTjcmD3FuUPV8lBO1ZPVqa0rj0=; b=nZ6HMmuRPN8kcNrlOz0w8CLN2m 2rSCbbadSwtWL6NoRw/ITTDGZypAgGb0FJRFALGG52nvTGYxofsmjPMxx9fYw7f/emo9nP3VgmMi1 5zLkaSMRb3QJEw23RkLS/GfvqhYREJSDZVHKhv3zU9QW5p/WH47sc8YOOcr203ghZzEs9bGTFUWo8 SAhUlBwNNV9ii/Q1UN3POf3qjtEYB/2dAqfZLh3xfThkEWRfgtfu6+h6+zN2Fj0wfSK6nTdRSY2qw DZsk9hVWPtXeYjzIzoYBLjew1mQzgC6PTRY/0xVpv8KpCy/SSOrPPqWGV+UCO816pBf9Op7faA1Gw wZmTeq9A==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDTc-000lMt-MQ; Fri, 13 Jan 2023 06:23:45 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 01/22] gpu/drm: remove the shmobile drm driver Date: Fri, 13 Jan 2023 07:23:18 +0100 Message-Id: <20230113062339.1909087-2-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This driver depends on ARM && ARCH_SHMOBILE, but ARCH_SHMOBILE can only be set for each/sh, making the driver dead code except for the COMPILE_TEST case. Signed-off-by: Christoph Hellwig Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/Kconfig | 2 - drivers/gpu/drm/Makefile | 1 - drivers/gpu/drm/shmobile/Kconfig | 12 - drivers/gpu/drm/shmobile/Makefile | 8 - .../gpu/drm/shmobile/shmob_drm_backlight.c | 82 --- .../gpu/drm/shmobile/shmob_drm_backlight.h | 19 - drivers/gpu/drm/shmobile/shmob_drm_crtc.c | 683 ------------------ drivers/gpu/drm/shmobile/shmob_drm_crtc.h | 55 -- drivers/gpu/drm/shmobile/shmob_drm_drv.c | 303 -------- drivers/gpu/drm/shmobile/shmob_drm_drv.h | 42 -- drivers/gpu/drm/shmobile/shmob_drm_kms.c | 150 ---- drivers/gpu/drm/shmobile/shmob_drm_kms.h | 29 - drivers/gpu/drm/shmobile/shmob_drm_plane.c | 261 ------- drivers/gpu/drm/shmobile/shmob_drm_plane.h | 19 - drivers/gpu/drm/shmobile/shmob_drm_regs.h | 310 -------- 15 files changed, 1976 deletions(-) delete mode 100644 drivers/gpu/drm/shmobile/Kconfig delete mode 100644 drivers/gpu/drm/shmobile/Makefile delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_backlight.c delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_backlight.h delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_crtc.c delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_crtc.h delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_drv.c delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_drv.h delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_kms.c delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_kms.h delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_plane.c delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_plane.h delete mode 100644 drivers/gpu/drm/shmobile/shmob_drm_regs.h diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 315cbdf6197927..1cb4bcb0714c87 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -286,8 +286,6 @@ source "drivers/gpu/drm/atmel-hlcdc/Kconfig" source "drivers/gpu/drm/rcar-du/Kconfig" -source "drivers/gpu/drm/shmobile/Kconfig" - source "drivers/gpu/drm/sun4i/Kconfig" source "drivers/gpu/drm/omapdrm/Kconfig" diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index cc637343d87b09..87709cf7db8145 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -160,7 +160,6 @@ obj-$(CONFIG_DRM_AST) += ast/ obj-$(CONFIG_DRM_ARMADA) += armada/ obj-$(CONFIG_DRM_ATMEL_HLCDC) += atmel-hlcdc/ obj-y += rcar-du/ -obj-$(CONFIG_DRM_SHMOBILE) +=shmobile/ obj-y += omapdrm/ obj-$(CONFIG_DRM_SUN4I) += sun4i/ obj-y += tilcdc/ diff --git a/drivers/gpu/drm/shmobile/Kconfig b/drivers/gpu/drm/shmobile/Kconfig deleted file mode 100644 index 4ec5dc74a6b0b8..00000000000000 --- a/drivers/gpu/drm/shmobile/Kconfig +++ /dev/null @@ -1,12 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -config DRM_SHMOBILE - tristate "DRM Support for SH Mobile" - depends on DRM && ARM - depends on ARCH_SHMOBILE || COMPILE_TEST - select BACKLIGHT_CLASS_DEVICE - select DRM_KMS_HELPER - select DRM_GEM_DMA_HELPER - help - Choose this option if you have an SH Mobile chipset. - If M is selected the module will be called shmob-drm. - diff --git a/drivers/gpu/drm/shmobile/Makefile b/drivers/gpu/drm/shmobile/Makefile deleted file mode 100644 index 861edafed8562c..00000000000000 --- a/drivers/gpu/drm/shmobile/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -shmob-drm-y := shmob_drm_backlight.o \ - shmob_drm_crtc.o \ - shmob_drm_drv.o \ - shmob_drm_kms.o \ - shmob_drm_plane.o - -obj-$(CONFIG_DRM_SHMOBILE) += shmob-drm.o diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c b/drivers/gpu/drm/shmobile/shmob_drm_backlight.c deleted file mode 100644 index 794573badfe860..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.c +++ /dev/null @@ -1,82 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_backlight.c -- SH Mobile DRM Backlight - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include - -#include "shmob_drm_backlight.h" -#include "shmob_drm_crtc.h" -#include "shmob_drm_drv.h" - -static int shmob_drm_backlight_update(struct backlight_device *bdev) -{ - struct shmob_drm_connector *scon = bl_get_data(bdev); - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - int brightness = backlight_get_brightness(bdev); - - return bdata->set_brightness(brightness); -} - -static int shmob_drm_backlight_get_brightness(struct backlight_device *bdev) -{ - struct shmob_drm_connector *scon = bl_get_data(bdev); - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - - return bdata->get_brightness(); -} - -static const struct backlight_ops shmob_drm_backlight_ops = { - .options = BL_CORE_SUSPENDRESUME, - .update_status = shmob_drm_backlight_update, - .get_brightness = shmob_drm_backlight_get_brightness, -}; - -void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode) -{ - if (scon->backlight == NULL) - return; - - scon->backlight->props.power = mode == DRM_MODE_DPMS_ON - ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; - backlight_update_status(scon->backlight); -} - -int shmob_drm_backlight_init(struct shmob_drm_connector *scon) -{ - struct shmob_drm_device *sdev = scon->connector.dev->dev_private; - const struct shmob_drm_backlight_data *bdata = &sdev->pdata->backlight; - struct drm_connector *connector = &scon->connector; - struct drm_device *dev = connector->dev; - struct backlight_device *backlight; - - if (!bdata->max_brightness) - return 0; - - backlight = backlight_device_register(bdata->name, dev->dev, scon, - &shmob_drm_backlight_ops, NULL); - if (IS_ERR(backlight)) { - dev_err(dev->dev, "unable to register backlight device: %ld\n", - PTR_ERR(backlight)); - return PTR_ERR(backlight); - } - - backlight->props.max_brightness = bdata->max_brightness; - backlight->props.brightness = bdata->max_brightness; - backlight->props.power = FB_BLANK_POWERDOWN; - backlight_update_status(backlight); - - scon->backlight = backlight; - return 0; -} - -void shmob_drm_backlight_exit(struct shmob_drm_connector *scon) -{ - backlight_device_unregister(scon->backlight); -} diff --git a/drivers/gpu/drm/shmobile/shmob_drm_backlight.h b/drivers/gpu/drm/shmobile/shmob_drm_backlight.h deleted file mode 100644 index d9abb7a60be5c4..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_backlight.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_backlight.h -- SH Mobile DRM Backlight - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_BACKLIGHT_H__ -#define __SHMOB_DRM_BACKLIGHT_H__ - -struct shmob_drm_connector; - -void shmob_drm_backlight_dpms(struct shmob_drm_connector *scon, int mode); -int shmob_drm_backlight_init(struct shmob_drm_connector *scon); -void shmob_drm_backlight_exit(struct shmob_drm_connector *scon); - -#endif /* __SHMOB_DRM_BACKLIGHT_H__ */ diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c deleted file mode 100644 index 4624c0aff51ffa..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c +++ /dev/null @@ -1,683 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_crtc.c -- SH Mobile DRM CRTCs - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "shmob_drm_backlight.h" -#include "shmob_drm_crtc.h" -#include "shmob_drm_drv.h" -#include "shmob_drm_kms.h" -#include "shmob_drm_plane.h" -#include "shmob_drm_regs.h" - -/* - * TODO: panel support - */ - -/* ----------------------------------------------------------------------------- - * Clock management - */ - -static int shmob_drm_clk_on(struct shmob_drm_device *sdev) -{ - int ret; - - if (sdev->clock) { - ret = clk_prepare_enable(sdev->clock); - if (ret < 0) - return ret; - } - - return 0; -} - -static void shmob_drm_clk_off(struct shmob_drm_device *sdev) -{ - if (sdev->clock) - clk_disable_unprepare(sdev->clock); -} - -/* ----------------------------------------------------------------------------- - * CRTC - */ - -static void shmob_drm_crtc_setup_geometry(struct shmob_drm_crtc *scrtc) -{ - struct drm_crtc *crtc = &scrtc->crtc; - struct shmob_drm_device *sdev = crtc->dev->dev_private; - const struct shmob_drm_interface_data *idata = &sdev->pdata->iface; - const struct drm_display_mode *mode = &crtc->mode; - u32 value; - - value = sdev->ldmt1r - | ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : LDMT1R_VPOL) - | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? 0 : LDMT1R_HPOL) - | ((idata->flags & SHMOB_DRM_IFACE_FL_DWPOL) ? LDMT1R_DWPOL : 0) - | ((idata->flags & SHMOB_DRM_IFACE_FL_DIPOL) ? LDMT1R_DIPOL : 0) - | ((idata->flags & SHMOB_DRM_IFACE_FL_DAPOL) ? LDMT1R_DAPOL : 0) - | ((idata->flags & SHMOB_DRM_IFACE_FL_HSCNT) ? LDMT1R_HSCNT : 0) - | ((idata->flags & SHMOB_DRM_IFACE_FL_DWCNT) ? LDMT1R_DWCNT : 0); - lcdc_write(sdev, LDMT1R, value); - - if (idata->interface >= SHMOB_DRM_IFACE_SYS8A && - idata->interface <= SHMOB_DRM_IFACE_SYS24) { - /* Setup SYS bus. */ - value = (idata->sys.cs_setup << LDMT2R_CSUP_SHIFT) - | (idata->sys.vsync_active_high ? LDMT2R_RSV : 0) - | (idata->sys.vsync_dir_input ? LDMT2R_VSEL : 0) - | (idata->sys.write_setup << LDMT2R_WCSC_SHIFT) - | (idata->sys.write_cycle << LDMT2R_WCEC_SHIFT) - | (idata->sys.write_strobe << LDMT2R_WCLW_SHIFT); - lcdc_write(sdev, LDMT2R, value); - - value = (idata->sys.read_latch << LDMT3R_RDLC_SHIFT) - | (idata->sys.read_setup << LDMT3R_RCSC_SHIFT) - | (idata->sys.read_cycle << LDMT3R_RCEC_SHIFT) - | (idata->sys.read_strobe << LDMT3R_RCLW_SHIFT); - lcdc_write(sdev, LDMT3R, value); - } - - value = ((mode->hdisplay / 8) << 16) /* HDCN */ - | (mode->htotal / 8); /* HTCN */ - lcdc_write(sdev, LDHCNR, value); - - value = (((mode->hsync_end - mode->hsync_start) / 8) << 16) /* HSYNW */ - | (mode->hsync_start / 8); /* HSYNP */ - lcdc_write(sdev, LDHSYNR, value); - - value = ((mode->hdisplay & 7) << 24) | ((mode->htotal & 7) << 16) - | (((mode->hsync_end - mode->hsync_start) & 7) << 8) - | (mode->hsync_start & 7); - lcdc_write(sdev, LDHAJR, value); - - value = ((mode->vdisplay) << 16) /* VDLN */ - | mode->vtotal; /* VTLN */ - lcdc_write(sdev, LDVLNR, value); - - value = ((mode->vsync_end - mode->vsync_start) << 16) /* VSYNW */ - | mode->vsync_start; /* VSYNP */ - lcdc_write(sdev, LDVSYNR, value); -} - -static void shmob_drm_crtc_start_stop(struct shmob_drm_crtc *scrtc, bool start) -{ - struct shmob_drm_device *sdev = scrtc->crtc.dev->dev_private; - u32 value; - - value = lcdc_read(sdev, LDCNT2R); - if (start) - lcdc_write(sdev, LDCNT2R, value | LDCNT2R_DO); - else - lcdc_write(sdev, LDCNT2R, value & ~LDCNT2R_DO); - - /* Wait until power is applied/stopped. */ - while (1) { - value = lcdc_read(sdev, LDPMR) & LDPMR_LPS; - if ((start && value) || (!start && !value)) - break; - - cpu_relax(); - } - - if (!start) { - /* Stop the dot clock. */ - lcdc_write(sdev, LDDCKSTPR, LDDCKSTPR_DCKSTP); - } -} - -/* - * shmob_drm_crtc_start - Configure and start the LCDC - * @scrtc: the SH Mobile CRTC - * - * Configure and start the LCDC device. External devices (clocks, MERAM, panels, - * ...) are not touched by this function. - */ -static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc) -{ - struct drm_crtc *crtc = &scrtc->crtc; - struct shmob_drm_device *sdev = crtc->dev->dev_private; - const struct shmob_drm_interface_data *idata = &sdev->pdata->iface; - const struct shmob_drm_format_info *format; - struct drm_device *dev = sdev->ddev; - struct drm_plane *plane; - u32 value; - int ret; - - if (scrtc->started) - return; - - format = shmob_drm_format_info(crtc->primary->fb->format->format); - if (WARN_ON(format == NULL)) - return; - - /* Enable clocks before accessing the hardware. */ - ret = shmob_drm_clk_on(sdev); - if (ret < 0) - return; - - /* Reset and enable the LCDC. */ - lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR); - lcdc_wait_bit(sdev, LDCNT2R, LDCNT2R_BR, 0); - lcdc_write(sdev, LDCNT2R, LDCNT2R_ME); - - /* Stop the LCDC first and disable all interrupts. */ - shmob_drm_crtc_start_stop(scrtc, false); - lcdc_write(sdev, LDINTR, 0); - - /* Configure power supply, dot clocks and start them. */ - lcdc_write(sdev, LDPMR, 0); - - value = sdev->lddckr; - if (idata->clk_div) { - /* FIXME: sh7724 can only use 42, 48, 54 and 60 for the divider - * denominator. - */ - lcdc_write(sdev, LDDCKPAT1R, 0); - lcdc_write(sdev, LDDCKPAT2R, (1 << (idata->clk_div / 2)) - 1); - - if (idata->clk_div == 1) - value |= LDDCKR_MOSEL; - else - value |= idata->clk_div; - } - - lcdc_write(sdev, LDDCKR, value); - lcdc_write(sdev, LDDCKSTPR, 0); - lcdc_wait_bit(sdev, LDDCKSTPR, ~0, 0); - - /* TODO: Setup SYS panel */ - - /* Setup geometry, format, frame buffer memory and operation mode. */ - shmob_drm_crtc_setup_geometry(scrtc); - - /* TODO: Handle YUV colorspaces. Hardcode REC709 for now. */ - lcdc_write(sdev, LDDFR, format->lddfr | LDDFR_CF1); - lcdc_write(sdev, LDMLSR, scrtc->line_size); - lcdc_write(sdev, LDSA1R, scrtc->dma[0]); - if (format->yuv) - lcdc_write(sdev, LDSA2R, scrtc->dma[1]); - lcdc_write(sdev, LDSM1R, 0); - - /* Word and long word swap. */ - switch (format->fourcc) { - case DRM_FORMAT_RGB565: - case DRM_FORMAT_NV21: - case DRM_FORMAT_NV61: - case DRM_FORMAT_NV42: - value = LDDDSR_LS | LDDDSR_WS; - break; - case DRM_FORMAT_RGB888: - case DRM_FORMAT_NV12: - case DRM_FORMAT_NV16: - case DRM_FORMAT_NV24: - value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS; - break; - case DRM_FORMAT_ARGB8888: - default: - value = LDDDSR_LS; - break; - } - lcdc_write(sdev, LDDDSR, value); - - /* Setup planes. */ - drm_for_each_legacy_plane(plane, dev) { - if (plane->crtc == crtc) - shmob_drm_plane_setup(plane); - } - - /* Enable the display output. */ - lcdc_write(sdev, LDCNT1R, LDCNT1R_DE); - - shmob_drm_crtc_start_stop(scrtc, true); - - scrtc->started = true; -} - -static void shmob_drm_crtc_stop(struct shmob_drm_crtc *scrtc) -{ - struct drm_crtc *crtc = &scrtc->crtc; - struct shmob_drm_device *sdev = crtc->dev->dev_private; - - if (!scrtc->started) - return; - - /* Stop the LCDC. */ - shmob_drm_crtc_start_stop(scrtc, false); - - /* Disable the display output. */ - lcdc_write(sdev, LDCNT1R, 0); - - /* Stop clocks. */ - shmob_drm_clk_off(sdev); - - scrtc->started = false; -} - -void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc) -{ - shmob_drm_crtc_stop(scrtc); -} - -void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc) -{ - if (scrtc->dpms != DRM_MODE_DPMS_ON) - return; - - shmob_drm_crtc_start(scrtc); -} - -static void shmob_drm_crtc_compute_base(struct shmob_drm_crtc *scrtc, - int x, int y) -{ - struct drm_crtc *crtc = &scrtc->crtc; - struct drm_framebuffer *fb = crtc->primary->fb; - struct drm_gem_dma_object *gem; - unsigned int bpp; - - bpp = scrtc->format->yuv ? 8 : scrtc->format->bpp; - gem = drm_fb_dma_get_gem_obj(fb, 0); - scrtc->dma[0] = gem->dma_addr + fb->offsets[0] - + y * fb->pitches[0] + x * bpp / 8; - - if (scrtc->format->yuv) { - bpp = scrtc->format->bpp - 8; - gem = drm_fb_dma_get_gem_obj(fb, 1); - scrtc->dma[1] = gem->dma_addr + fb->offsets[1] - + y / (bpp == 4 ? 2 : 1) * fb->pitches[1] - + x * (bpp == 16 ? 2 : 1); - } -} - -static void shmob_drm_crtc_update_base(struct shmob_drm_crtc *scrtc) -{ - struct drm_crtc *crtc = &scrtc->crtc; - struct shmob_drm_device *sdev = crtc->dev->dev_private; - - shmob_drm_crtc_compute_base(scrtc, crtc->x, crtc->y); - - lcdc_write_mirror(sdev, LDSA1R, scrtc->dma[0]); - if (scrtc->format->yuv) - lcdc_write_mirror(sdev, LDSA2R, scrtc->dma[1]); - - lcdc_write(sdev, LDRCNTR, lcdc_read(sdev, LDRCNTR) ^ LDRCNTR_MRS); -} - -#define to_shmob_crtc(c) container_of(c, struct shmob_drm_crtc, crtc) - -static void shmob_drm_crtc_dpms(struct drm_crtc *crtc, int mode) -{ - struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc); - - if (scrtc->dpms == mode) - return; - - if (mode == DRM_MODE_DPMS_ON) - shmob_drm_crtc_start(scrtc); - else - shmob_drm_crtc_stop(scrtc); - - scrtc->dpms = mode; -} - -static void shmob_drm_crtc_mode_prepare(struct drm_crtc *crtc) -{ - shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); -} - -static int shmob_drm_crtc_mode_set(struct drm_crtc *crtc, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode, - int x, int y, - struct drm_framebuffer *old_fb) -{ - struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc); - struct shmob_drm_device *sdev = crtc->dev->dev_private; - const struct shmob_drm_format_info *format; - - format = shmob_drm_format_info(crtc->primary->fb->format->format); - if (format == NULL) { - dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n", - crtc->primary->fb->format->format); - return -EINVAL; - } - - scrtc->format = format; - scrtc->line_size = crtc->primary->fb->pitches[0]; - - shmob_drm_crtc_compute_base(scrtc, x, y); - - return 0; -} - -static void shmob_drm_crtc_mode_commit(struct drm_crtc *crtc) -{ - shmob_drm_crtc_dpms(crtc, DRM_MODE_DPMS_ON); -} - -static int shmob_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, - struct drm_framebuffer *old_fb) -{ - shmob_drm_crtc_update_base(to_shmob_crtc(crtc)); - - return 0; -} - -static const struct drm_crtc_helper_funcs crtc_helper_funcs = { - .dpms = shmob_drm_crtc_dpms, - .prepare = shmob_drm_crtc_mode_prepare, - .commit = shmob_drm_crtc_mode_commit, - .mode_set = shmob_drm_crtc_mode_set, - .mode_set_base = shmob_drm_crtc_mode_set_base, -}; - -void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc) -{ - struct drm_pending_vblank_event *event; - struct drm_device *dev = scrtc->crtc.dev; - unsigned long flags; - - spin_lock_irqsave(&dev->event_lock, flags); - event = scrtc->event; - scrtc->event = NULL; - if (event) { - drm_crtc_send_vblank_event(&scrtc->crtc, event); - drm_crtc_vblank_put(&scrtc->crtc); - } - spin_unlock_irqrestore(&dev->event_lock, flags); -} - -static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc, - struct drm_framebuffer *fb, - struct drm_pending_vblank_event *event, - uint32_t page_flip_flags, - struct drm_modeset_acquire_ctx *ctx) -{ - struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc); - struct drm_device *dev = scrtc->crtc.dev; - unsigned long flags; - - spin_lock_irqsave(&dev->event_lock, flags); - if (scrtc->event != NULL) { - spin_unlock_irqrestore(&dev->event_lock, flags); - return -EBUSY; - } - spin_unlock_irqrestore(&dev->event_lock, flags); - - crtc->primary->fb = fb; - shmob_drm_crtc_update_base(scrtc); - - if (event) { - event->pipe = 0; - drm_crtc_vblank_get(&scrtc->crtc); - spin_lock_irqsave(&dev->event_lock, flags); - scrtc->event = event; - spin_unlock_irqrestore(&dev->event_lock, flags); - } - - return 0; -} - -static void shmob_drm_crtc_enable_vblank(struct shmob_drm_device *sdev, - bool enable) -{ - unsigned long flags; - u32 ldintr; - - /* Be careful not to acknowledge any pending interrupt. */ - spin_lock_irqsave(&sdev->irq_lock, flags); - ldintr = lcdc_read(sdev, LDINTR) | LDINTR_STATUS_MASK; - if (enable) - ldintr |= LDINTR_VEE; - else - ldintr &= ~LDINTR_VEE; - lcdc_write(sdev, LDINTR, ldintr); - spin_unlock_irqrestore(&sdev->irq_lock, flags); -} - -static int shmob_drm_enable_vblank(struct drm_crtc *crtc) -{ - struct shmob_drm_device *sdev = crtc->dev->dev_private; - - shmob_drm_crtc_enable_vblank(sdev, true); - - return 0; -} - -static void shmob_drm_disable_vblank(struct drm_crtc *crtc) -{ - struct shmob_drm_device *sdev = crtc->dev->dev_private; - - shmob_drm_crtc_enable_vblank(sdev, false); -} - -static const struct drm_crtc_funcs crtc_funcs = { - .destroy = drm_crtc_cleanup, - .set_config = drm_crtc_helper_set_config, - .page_flip = shmob_drm_crtc_page_flip, - .enable_vblank = shmob_drm_enable_vblank, - .disable_vblank = shmob_drm_disable_vblank, -}; - -int shmob_drm_crtc_create(struct shmob_drm_device *sdev) -{ - struct drm_crtc *crtc = &sdev->crtc.crtc; - int ret; - - sdev->crtc.dpms = DRM_MODE_DPMS_OFF; - - ret = drm_crtc_init(sdev->ddev, crtc, &crtc_funcs); - if (ret < 0) - return ret; - - drm_crtc_helper_add(crtc, &crtc_helper_funcs); - - return 0; -} - -/* ----------------------------------------------------------------------------- - * Encoder - */ - -#define to_shmob_encoder(e) \ - container_of(e, struct shmob_drm_encoder, encoder) - -static void shmob_drm_encoder_dpms(struct drm_encoder *encoder, int mode) -{ - struct shmob_drm_encoder *senc = to_shmob_encoder(encoder); - struct shmob_drm_device *sdev = encoder->dev->dev_private; - struct shmob_drm_connector *scon = &sdev->connector; - - if (senc->dpms == mode) - return; - - shmob_drm_backlight_dpms(scon, mode); - - senc->dpms = mode; -} - -static bool shmob_drm_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - struct drm_device *dev = encoder->dev; - struct shmob_drm_device *sdev = dev->dev_private; - struct drm_connector *connector = &sdev->connector.connector; - const struct drm_display_mode *panel_mode; - - if (list_empty(&connector->modes)) { - dev_dbg(dev->dev, "mode_fixup: empty modes list\n"); - return false; - } - - /* The flat panel mode is fixed, just copy it to the adjusted mode. */ - panel_mode = list_first_entry(&connector->modes, - struct drm_display_mode, head); - drm_mode_copy(adjusted_mode, panel_mode); - - return true; -} - -static void shmob_drm_encoder_mode_prepare(struct drm_encoder *encoder) -{ - /* No-op, everything is handled in the CRTC code. */ -} - -static void shmob_drm_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - /* No-op, everything is handled in the CRTC code. */ -} - -static void shmob_drm_encoder_mode_commit(struct drm_encoder *encoder) -{ - /* No-op, everything is handled in the CRTC code. */ -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .dpms = shmob_drm_encoder_dpms, - .mode_fixup = shmob_drm_encoder_mode_fixup, - .prepare = shmob_drm_encoder_mode_prepare, - .commit = shmob_drm_encoder_mode_commit, - .mode_set = shmob_drm_encoder_mode_set, -}; - -int shmob_drm_encoder_create(struct shmob_drm_device *sdev) -{ - struct drm_encoder *encoder = &sdev->encoder.encoder; - int ret; - - sdev->encoder.dpms = DRM_MODE_DPMS_OFF; - - encoder->possible_crtcs = 1; - - ret = drm_simple_encoder_init(sdev->ddev, encoder, - DRM_MODE_ENCODER_LVDS); - if (ret < 0) - return ret; - - drm_encoder_helper_add(encoder, &encoder_helper_funcs); - - return 0; -} - -/* ----------------------------------------------------------------------------- - * Connector - */ - -#define to_shmob_connector(c) \ - container_of(c, struct shmob_drm_connector, connector) - -static int shmob_drm_connector_get_modes(struct drm_connector *connector) -{ - struct shmob_drm_device *sdev = connector->dev->dev_private; - struct drm_display_mode *mode; - - mode = drm_mode_create(connector->dev); - if (mode == NULL) - return 0; - - mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; - mode->clock = sdev->pdata->panel.mode.clock; - mode->hdisplay = sdev->pdata->panel.mode.hdisplay; - mode->hsync_start = sdev->pdata->panel.mode.hsync_start; - mode->hsync_end = sdev->pdata->panel.mode.hsync_end; - mode->htotal = sdev->pdata->panel.mode.htotal; - mode->vdisplay = sdev->pdata->panel.mode.vdisplay; - mode->vsync_start = sdev->pdata->panel.mode.vsync_start; - mode->vsync_end = sdev->pdata->panel.mode.vsync_end; - mode->vtotal = sdev->pdata->panel.mode.vtotal; - mode->flags = sdev->pdata->panel.mode.flags; - - drm_mode_set_name(mode); - drm_mode_probed_add(connector, mode); - - connector->display_info.width_mm = sdev->pdata->panel.width_mm; - connector->display_info.height_mm = sdev->pdata->panel.height_mm; - - return 1; -} - -static struct drm_encoder * -shmob_drm_connector_best_encoder(struct drm_connector *connector) -{ - struct shmob_drm_connector *scon = to_shmob_connector(connector); - - return scon->encoder; -} - -static const struct drm_connector_helper_funcs connector_helper_funcs = { - .get_modes = shmob_drm_connector_get_modes, - .best_encoder = shmob_drm_connector_best_encoder, -}; - -static void shmob_drm_connector_destroy(struct drm_connector *connector) -{ - struct shmob_drm_connector *scon = to_shmob_connector(connector); - - shmob_drm_backlight_exit(scon); - drm_connector_unregister(connector); - drm_connector_cleanup(connector); -} - -static const struct drm_connector_funcs connector_funcs = { - .dpms = drm_helper_connector_dpms, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = shmob_drm_connector_destroy, -}; - -int shmob_drm_connector_create(struct shmob_drm_device *sdev, - struct drm_encoder *encoder) -{ - struct drm_connector *connector = &sdev->connector.connector; - int ret; - - sdev->connector.encoder = encoder; - - connector->display_info.width_mm = sdev->pdata->panel.width_mm; - connector->display_info.height_mm = sdev->pdata->panel.height_mm; - - ret = drm_connector_init(sdev->ddev, connector, &connector_funcs, - DRM_MODE_CONNECTOR_LVDS); - if (ret < 0) - return ret; - - drm_connector_helper_add(connector, &connector_helper_funcs); - - ret = shmob_drm_backlight_init(&sdev->connector); - if (ret < 0) - goto err_cleanup; - - ret = drm_connector_attach_encoder(connector, encoder); - if (ret < 0) - goto err_backlight; - - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); - drm_object_property_set_value(&connector->base, - sdev->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); - - return 0; - -err_backlight: - shmob_drm_backlight_exit(&sdev->connector); -err_cleanup: - drm_connector_cleanup(connector); - return ret; -} diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.h b/drivers/gpu/drm/shmobile/shmob_drm_crtc.h deleted file mode 100644 index 21718843f46d3d..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.h +++ /dev/null @@ -1,55 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_crtc.h -- SH Mobile DRM CRTCs - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_CRTC_H__ -#define __SHMOB_DRM_CRTC_H__ - -#include -#include -#include - -struct backlight_device; -struct drm_pending_vblank_event; -struct shmob_drm_device; -struct shmob_drm_format_info; - -struct shmob_drm_crtc { - struct drm_crtc crtc; - - struct drm_pending_vblank_event *event; - int dpms; - - const struct shmob_drm_format_info *format; - unsigned long dma[2]; - unsigned int line_size; - bool started; -}; - -struct shmob_drm_encoder { - struct drm_encoder encoder; - int dpms; -}; - -struct shmob_drm_connector { - struct drm_connector connector; - struct drm_encoder *encoder; - - struct backlight_device *backlight; -}; - -int shmob_drm_crtc_create(struct shmob_drm_device *sdev); -void shmob_drm_crtc_finish_page_flip(struct shmob_drm_crtc *scrtc); -void shmob_drm_crtc_suspend(struct shmob_drm_crtc *scrtc); -void shmob_drm_crtc_resume(struct shmob_drm_crtc *scrtc); - -int shmob_drm_encoder_create(struct shmob_drm_device *sdev); -int shmob_drm_connector_create(struct shmob_drm_device *sdev, - struct drm_encoder *encoder); - -#endif /* __SHMOB_DRM_CRTC_H__ */ diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.c b/drivers/gpu/drm/shmobile/shmob_drm_drv.c deleted file mode 100644 index 3d511fa3891364..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.c +++ /dev/null @@ -1,303 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_drv.c -- SH Mobile DRM driver - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include "shmob_drm_drv.h" -#include "shmob_drm_kms.h" -#include "shmob_drm_plane.h" -#include "shmob_drm_regs.h" - -/* ----------------------------------------------------------------------------- - * Hardware initialization - */ - -static int shmob_drm_init_interface(struct shmob_drm_device *sdev) -{ - static const u32 ldmt1r[] = { - [SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8, - [SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9, - [SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A, - [SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B, - [SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16, - [SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18, - [SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24, - [SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR, - [SHMOB_DRM_IFACE_SYS8A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8A, - [SHMOB_DRM_IFACE_SYS8B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8B, - [SHMOB_DRM_IFACE_SYS8C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8C, - [SHMOB_DRM_IFACE_SYS8D] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS8D, - [SHMOB_DRM_IFACE_SYS9] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS9, - [SHMOB_DRM_IFACE_SYS12] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS12, - [SHMOB_DRM_IFACE_SYS16A] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16A, - [SHMOB_DRM_IFACE_SYS16B] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16B, - [SHMOB_DRM_IFACE_SYS16C] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS16C, - [SHMOB_DRM_IFACE_SYS18] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS18, - [SHMOB_DRM_IFACE_SYS24] = LDMT1R_IFM | LDMT1R_MIFTYP_SYS24, - }; - - if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) { - dev_err(sdev->dev, "invalid interface type %u\n", - sdev->pdata->iface.interface); - return -EINVAL; - } - - sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface]; - return 0; -} - -static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev, - enum shmob_drm_clk_source clksrc) -{ - struct clk *clk; - char *clkname; - - switch (clksrc) { - case SHMOB_DRM_CLK_BUS: - clkname = "bus_clk"; - sdev->lddckr = LDDCKR_ICKSEL_BUS; - break; - case SHMOB_DRM_CLK_PERIPHERAL: - clkname = "peripheral_clk"; - sdev->lddckr = LDDCKR_ICKSEL_MIPI; - break; - case SHMOB_DRM_CLK_EXTERNAL: - clkname = NULL; - sdev->lddckr = LDDCKR_ICKSEL_HDMI; - break; - default: - return -EINVAL; - } - - clk = devm_clk_get(sdev->dev, clkname); - if (IS_ERR(clk)) { - dev_err(sdev->dev, "cannot get dot clock %s\n", clkname); - return PTR_ERR(clk); - } - - sdev->clock = clk; - return 0; -} - -/* ----------------------------------------------------------------------------- - * DRM operations - */ - -static irqreturn_t shmob_drm_irq(int irq, void *arg) -{ - struct drm_device *dev = arg; - struct shmob_drm_device *sdev = dev->dev_private; - unsigned long flags; - u32 status; - - /* Acknowledge interrupts. Putting interrupt enable and interrupt flag - * bits in the same register is really brain-dead design and requires - * taking a spinlock. - */ - spin_lock_irqsave(&sdev->irq_lock, flags); - status = lcdc_read(sdev, LDINTR); - lcdc_write(sdev, LDINTR, status ^ LDINTR_STATUS_MASK); - spin_unlock_irqrestore(&sdev->irq_lock, flags); - - if (status & LDINTR_VES) { - drm_handle_vblank(dev, 0); - shmob_drm_crtc_finish_page_flip(&sdev->crtc); - } - - return IRQ_HANDLED; -} - -DEFINE_DRM_GEM_DMA_FOPS(shmob_drm_fops); - -static const struct drm_driver shmob_drm_driver = { - .driver_features = DRIVER_GEM | DRIVER_MODESET, - DRM_GEM_DMA_DRIVER_OPS, - .fops = &shmob_drm_fops, - .name = "shmob-drm", - .desc = "Renesas SH Mobile DRM", - .date = "20120424", - .major = 1, - .minor = 0, -}; - -/* ----------------------------------------------------------------------------- - * Power management - */ - -#ifdef CONFIG_PM_SLEEP -static int shmob_drm_pm_suspend(struct device *dev) -{ - struct shmob_drm_device *sdev = dev_get_drvdata(dev); - - drm_kms_helper_poll_disable(sdev->ddev); - shmob_drm_crtc_suspend(&sdev->crtc); - - return 0; -} - -static int shmob_drm_pm_resume(struct device *dev) -{ - struct shmob_drm_device *sdev = dev_get_drvdata(dev); - - drm_modeset_lock_all(sdev->ddev); - shmob_drm_crtc_resume(&sdev->crtc); - drm_modeset_unlock_all(sdev->ddev); - - drm_kms_helper_poll_enable(sdev->ddev); - return 0; -} -#endif - -static const struct dev_pm_ops shmob_drm_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(shmob_drm_pm_suspend, shmob_drm_pm_resume) -}; - -/* ----------------------------------------------------------------------------- - * Platform driver - */ - -static int shmob_drm_remove(struct platform_device *pdev) -{ - struct shmob_drm_device *sdev = platform_get_drvdata(pdev); - struct drm_device *ddev = sdev->ddev; - - drm_dev_unregister(ddev); - drm_kms_helper_poll_fini(ddev); - free_irq(sdev->irq, ddev); - drm_dev_put(ddev); - - return 0; -} - -static int shmob_drm_probe(struct platform_device *pdev) -{ - struct shmob_drm_platform_data *pdata = pdev->dev.platform_data; - struct shmob_drm_device *sdev; - struct drm_device *ddev; - unsigned int i; - int ret; - - if (pdata == NULL) { - dev_err(&pdev->dev, "no platform data\n"); - return -EINVAL; - } - - /* - * Allocate and initialize the driver private data, I/O resources and - * clocks. - */ - sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL); - if (sdev == NULL) - return -ENOMEM; - - sdev->dev = &pdev->dev; - sdev->pdata = pdata; - spin_lock_init(&sdev->irq_lock); - - platform_set_drvdata(pdev, sdev); - - sdev->mmio = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(sdev->mmio)) - return PTR_ERR(sdev->mmio); - - ret = shmob_drm_setup_clocks(sdev, pdata->clk_source); - if (ret < 0) - return ret; - - ret = shmob_drm_init_interface(sdev); - if (ret < 0) - return ret; - - /* Allocate and initialize the DRM device. */ - ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev); - if (IS_ERR(ddev)) - return PTR_ERR(ddev); - - sdev->ddev = ddev; - ddev->dev_private = sdev; - - ret = shmob_drm_modeset_init(sdev); - if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize mode setting\n"); - goto err_free_drm_dev; - } - - for (i = 0; i < 4; ++i) { - ret = shmob_drm_plane_create(sdev, i); - if (ret < 0) { - dev_err(&pdev->dev, "failed to create plane %u\n", i); - goto err_modeset_cleanup; - } - } - - ret = drm_vblank_init(ddev, 1); - if (ret < 0) { - dev_err(&pdev->dev, "failed to initialize vblank\n"); - goto err_modeset_cleanup; - } - - ret = platform_get_irq(pdev, 0); - if (ret < 0) - goto err_modeset_cleanup; - sdev->irq = ret; - - ret = request_irq(sdev->irq, shmob_drm_irq, 0, ddev->driver->name, - ddev); - if (ret < 0) { - dev_err(&pdev->dev, "failed to install IRQ handler\n"); - goto err_modeset_cleanup; - } - - /* - * Register the DRM device with the core and the connectors with - * sysfs. - */ - ret = drm_dev_register(ddev, 0); - if (ret < 0) - goto err_irq_uninstall; - - return 0; - -err_irq_uninstall: - free_irq(sdev->irq, ddev); -err_modeset_cleanup: - drm_kms_helper_poll_fini(ddev); -err_free_drm_dev: - drm_dev_put(ddev); - - return ret; -} - -static struct platform_driver shmob_drm_platform_driver = { - .probe = shmob_drm_probe, - .remove = shmob_drm_remove, - .driver = { - .name = "shmob-drm", - .pm = &shmob_drm_pm_ops, - }, -}; - -drm_module_platform_driver(shmob_drm_platform_driver); - -MODULE_AUTHOR("Laurent Pinchart "); -MODULE_DESCRIPTION("Renesas SH Mobile DRM Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/shmobile/shmob_drm_drv.h b/drivers/gpu/drm/shmobile/shmob_drm_drv.h deleted file mode 100644 index 4964ddd5ab7472..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_drv.h +++ /dev/null @@ -1,42 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm.h -- SH Mobile DRM driver - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_DRV_H__ -#define __SHMOB_DRM_DRV_H__ - -#include -#include -#include - -#include "shmob_drm_crtc.h" - -struct clk; -struct device; -struct drm_device; - -struct shmob_drm_device { - struct device *dev; - const struct shmob_drm_platform_data *pdata; - - void __iomem *mmio; - struct clk *clock; - u32 lddckr; - u32 ldmt1r; - - unsigned int irq; - spinlock_t irq_lock; /* Protects hardware LDINTR register */ - - struct drm_device *ddev; - - struct shmob_drm_crtc crtc; - struct shmob_drm_encoder encoder; - struct shmob_drm_connector connector; -}; - -#endif /* __SHMOB_DRM_DRV_H__ */ diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/shmobile/shmob_drm_kms.c deleted file mode 100644 index 60a2c8d8a0d947..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_kms.c +++ /dev/null @@ -1,150 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_kms.c -- SH Mobile DRM Mode Setting - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include -#include -#include -#include -#include -#include - -#include "shmob_drm_crtc.h" -#include "shmob_drm_drv.h" -#include "shmob_drm_kms.h" -#include "shmob_drm_regs.h" - -/* ----------------------------------------------------------------------------- - * Format helpers - */ - -static const struct shmob_drm_format_info shmob_drm_format_infos[] = { - { - .fourcc = DRM_FORMAT_RGB565, - .bpp = 16, - .yuv = false, - .lddfr = LDDFR_PKF_RGB16, - }, { - .fourcc = DRM_FORMAT_RGB888, - .bpp = 24, - .yuv = false, - .lddfr = LDDFR_PKF_RGB24, - }, { - .fourcc = DRM_FORMAT_ARGB8888, - .bpp = 32, - .yuv = false, - .lddfr = LDDFR_PKF_ARGB32, - }, { - .fourcc = DRM_FORMAT_NV12, - .bpp = 12, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_420, - }, { - .fourcc = DRM_FORMAT_NV21, - .bpp = 12, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_420, - }, { - .fourcc = DRM_FORMAT_NV16, - .bpp = 16, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_422, - }, { - .fourcc = DRM_FORMAT_NV61, - .bpp = 16, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_422, - }, { - .fourcc = DRM_FORMAT_NV24, - .bpp = 24, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_444, - }, { - .fourcc = DRM_FORMAT_NV42, - .bpp = 24, - .yuv = true, - .lddfr = LDDFR_CC | LDDFR_YF_444, - }, -}; - -const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc) -{ - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(shmob_drm_format_infos); ++i) { - if (shmob_drm_format_infos[i].fourcc == fourcc) - return &shmob_drm_format_infos[i]; - } - - return NULL; -} - -/* ----------------------------------------------------------------------------- - * Frame buffer - */ - -static struct drm_framebuffer * -shmob_drm_fb_create(struct drm_device *dev, struct drm_file *file_priv, - const struct drm_mode_fb_cmd2 *mode_cmd) -{ - const struct shmob_drm_format_info *format; - - format = shmob_drm_format_info(mode_cmd->pixel_format); - if (format == NULL) { - dev_dbg(dev->dev, "unsupported pixel format %08x\n", - mode_cmd->pixel_format); - return ERR_PTR(-EINVAL); - } - - if (mode_cmd->pitches[0] & 7 || mode_cmd->pitches[0] >= 65536) { - dev_dbg(dev->dev, "invalid pitch value %u\n", - mode_cmd->pitches[0]); - return ERR_PTR(-EINVAL); - } - - if (format->yuv) { - unsigned int chroma_cpp = format->bpp == 24 ? 2 : 1; - - if (mode_cmd->pitches[1] != mode_cmd->pitches[0] * chroma_cpp) { - dev_dbg(dev->dev, - "luma and chroma pitches do not match\n"); - return ERR_PTR(-EINVAL); - } - } - - return drm_gem_fb_create(dev, file_priv, mode_cmd); -} - -static const struct drm_mode_config_funcs shmob_drm_mode_config_funcs = { - .fb_create = shmob_drm_fb_create, -}; - -int shmob_drm_modeset_init(struct shmob_drm_device *sdev) -{ - int ret; - - ret = drmm_mode_config_init(sdev->ddev); - if (ret) - return ret; - - shmob_drm_crtc_create(sdev); - shmob_drm_encoder_create(sdev); - shmob_drm_connector_create(sdev, &sdev->encoder.encoder); - - drm_kms_helper_poll_init(sdev->ddev); - - sdev->ddev->mode_config.min_width = 0; - sdev->ddev->mode_config.min_height = 0; - sdev->ddev->mode_config.max_width = 4095; - sdev->ddev->mode_config.max_height = 4095; - sdev->ddev->mode_config.funcs = &shmob_drm_mode_config_funcs; - - drm_helper_disable_unused_functions(sdev->ddev); - - return 0; -} diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.h b/drivers/gpu/drm/shmobile/shmob_drm_kms.h deleted file mode 100644 index 0347b1fd2338a8..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_kms.h +++ /dev/null @@ -1,29 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_kms.h -- SH Mobile DRM Mode Setting - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_KMS_H__ -#define __SHMOB_DRM_KMS_H__ - -#include - -struct drm_gem_dma_object; -struct shmob_drm_device; - -struct shmob_drm_format_info { - u32 fourcc; - unsigned int bpp; - bool yuv; - u32 lddfr; -}; - -const struct shmob_drm_format_info *shmob_drm_format_info(u32 fourcc); - -int shmob_drm_modeset_init(struct shmob_drm_device *sdev); - -#endif /* __SHMOB_DRM_KMS_H__ */ diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/shmobile/shmob_drm_plane.c deleted file mode 100644 index 6c5f0cbe7d95b9..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_plane.c +++ /dev/null @@ -1,261 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * shmob_drm_plane.c -- SH Mobile DRM Planes - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#include -#include -#include -#include -#include -#include - -#include "shmob_drm_drv.h" -#include "shmob_drm_kms.h" -#include "shmob_drm_plane.h" -#include "shmob_drm_regs.h" - -struct shmob_drm_plane { - struct drm_plane plane; - unsigned int index; - unsigned int alpha; - - const struct shmob_drm_format_info *format; - unsigned long dma[2]; - - unsigned int src_x; - unsigned int src_y; - unsigned int crtc_x; - unsigned int crtc_y; - unsigned int crtc_w; - unsigned int crtc_h; -}; - -#define to_shmob_plane(p) container_of(p, struct shmob_drm_plane, plane) - -static void shmob_drm_plane_compute_base(struct shmob_drm_plane *splane, - struct drm_framebuffer *fb, - int x, int y) -{ - struct drm_gem_dma_object *gem; - unsigned int bpp; - - bpp = splane->format->yuv ? 8 : splane->format->bpp; - gem = drm_fb_dma_get_gem_obj(fb, 0); - splane->dma[0] = gem->dma_addr + fb->offsets[0] - + y * fb->pitches[0] + x * bpp / 8; - - if (splane->format->yuv) { - bpp = splane->format->bpp - 8; - gem = drm_fb_dma_get_gem_obj(fb, 1); - splane->dma[1] = gem->dma_addr + fb->offsets[1] - + y / (bpp == 4 ? 2 : 1) * fb->pitches[1] - + x * (bpp == 16 ? 2 : 1); - } -} - -static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane, - struct drm_framebuffer *fb) -{ - struct shmob_drm_device *sdev = splane->plane.dev->dev_private; - u32 format; - - /* TODO: Support ROP3 mode */ - format = LDBBSIFR_EN | (splane->alpha << LDBBSIFR_LAY_SHIFT); - - switch (splane->format->fourcc) { - case DRM_FORMAT_RGB565: - case DRM_FORMAT_NV21: - case DRM_FORMAT_NV61: - case DRM_FORMAT_NV42: - format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW; - break; - case DRM_FORMAT_RGB888: - case DRM_FORMAT_NV12: - case DRM_FORMAT_NV16: - case DRM_FORMAT_NV24: - format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB; - break; - case DRM_FORMAT_ARGB8888: - default: - format |= LDBBSIFR_SWPL; - break; - } - - switch (splane->format->fourcc) { - case DRM_FORMAT_RGB565: - format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB16; - break; - case DRM_FORMAT_RGB888: - format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDBBSIFR_RPKF_RGB24; - break; - case DRM_FORMAT_ARGB8888: - format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32; - break; - case DRM_FORMAT_NV12: - case DRM_FORMAT_NV21: - format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420; - break; - case DRM_FORMAT_NV16: - case DRM_FORMAT_NV61: - format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_422; - break; - case DRM_FORMAT_NV24: - case DRM_FORMAT_NV42: - format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_444; - break; - } - -#define plane_reg_dump(sdev, splane, reg) \ - dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x 0x%08x\n", __func__, \ - splane->index, #reg, \ - lcdc_read(sdev, reg(splane->index)), \ - lcdc_read(sdev, reg(splane->index) + LCDC_SIDE_B_OFFSET)) - - plane_reg_dump(sdev, splane, LDBnBSIFR); - plane_reg_dump(sdev, splane, LDBnBSSZR); - plane_reg_dump(sdev, splane, LDBnBLOCR); - plane_reg_dump(sdev, splane, LDBnBSMWR); - plane_reg_dump(sdev, splane, LDBnBSAYR); - plane_reg_dump(sdev, splane, LDBnBSACR); - - lcdc_write(sdev, LDBCR, LDBCR_UPC(splane->index)); - dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index, - "LDBCR", lcdc_read(sdev, LDBCR)); - - lcdc_write(sdev, LDBnBSIFR(splane->index), format); - - lcdc_write(sdev, LDBnBSSZR(splane->index), - (splane->crtc_h << LDBBSSZR_BVSS_SHIFT) | - (splane->crtc_w << LDBBSSZR_BHSS_SHIFT)); - lcdc_write(sdev, LDBnBLOCR(splane->index), - (splane->crtc_y << LDBBLOCR_CVLC_SHIFT) | - (splane->crtc_x << LDBBLOCR_CHLC_SHIFT)); - lcdc_write(sdev, LDBnBSMWR(splane->index), - fb->pitches[0] << LDBBSMWR_BSMW_SHIFT); - - shmob_drm_plane_compute_base(splane, fb, splane->src_x, splane->src_y); - - lcdc_write(sdev, LDBnBSAYR(splane->index), splane->dma[0]); - if (splane->format->yuv) - lcdc_write(sdev, LDBnBSACR(splane->index), splane->dma[1]); - - lcdc_write(sdev, LDBCR, - LDBCR_UPF(splane->index) | LDBCR_UPD(splane->index)); - dev_dbg(sdev->ddev->dev, "%s(%u): %s 0x%08x\n", __func__, splane->index, - "LDBCR", lcdc_read(sdev, LDBCR)); - - plane_reg_dump(sdev, splane, LDBnBSIFR); - plane_reg_dump(sdev, splane, LDBnBSSZR); - plane_reg_dump(sdev, splane, LDBnBLOCR); - plane_reg_dump(sdev, splane, LDBnBSMWR); - plane_reg_dump(sdev, splane, LDBnBSAYR); - plane_reg_dump(sdev, splane, LDBnBSACR); -} - -void shmob_drm_plane_setup(struct drm_plane *plane) -{ - struct shmob_drm_plane *splane = to_shmob_plane(plane); - - if (plane->fb == NULL) - return; - - __shmob_drm_plane_setup(splane, plane->fb); -} - -static int -shmob_drm_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, - struct drm_framebuffer *fb, int crtc_x, int crtc_y, - unsigned int crtc_w, unsigned int crtc_h, - uint32_t src_x, uint32_t src_y, - uint32_t src_w, uint32_t src_h, - struct drm_modeset_acquire_ctx *ctx) -{ - struct shmob_drm_plane *splane = to_shmob_plane(plane); - struct shmob_drm_device *sdev = plane->dev->dev_private; - const struct shmob_drm_format_info *format; - - format = shmob_drm_format_info(fb->format->format); - if (format == NULL) { - dev_dbg(sdev->dev, "update_plane: unsupported format %08x\n", - fb->format->format); - return -EINVAL; - } - - if (src_w >> 16 != crtc_w || src_h >> 16 != crtc_h) { - dev_dbg(sdev->dev, "%s: scaling not supported\n", __func__); - return -EINVAL; - } - - splane->format = format; - - splane->src_x = src_x >> 16; - splane->src_y = src_y >> 16; - splane->crtc_x = crtc_x; - splane->crtc_y = crtc_y; - splane->crtc_w = crtc_w; - splane->crtc_h = crtc_h; - - __shmob_drm_plane_setup(splane, fb); - return 0; -} - -static int shmob_drm_plane_disable(struct drm_plane *plane, - struct drm_modeset_acquire_ctx *ctx) -{ - struct shmob_drm_plane *splane = to_shmob_plane(plane); - struct shmob_drm_device *sdev = plane->dev->dev_private; - - splane->format = NULL; - - lcdc_write(sdev, LDBnBSIFR(splane->index), 0); - return 0; -} - -static void shmob_drm_plane_destroy(struct drm_plane *plane) -{ - drm_plane_force_disable(plane); - drm_plane_cleanup(plane); -} - -static const struct drm_plane_funcs shmob_drm_plane_funcs = { - .update_plane = shmob_drm_plane_update, - .disable_plane = shmob_drm_plane_disable, - .destroy = shmob_drm_plane_destroy, -}; - -static const uint32_t formats[] = { - DRM_FORMAT_RGB565, - DRM_FORMAT_RGB888, - DRM_FORMAT_ARGB8888, - DRM_FORMAT_NV12, - DRM_FORMAT_NV21, - DRM_FORMAT_NV16, - DRM_FORMAT_NV61, - DRM_FORMAT_NV24, - DRM_FORMAT_NV42, -}; - -int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index) -{ - struct shmob_drm_plane *splane; - int ret; - - splane = devm_kzalloc(sdev->dev, sizeof(*splane), GFP_KERNEL); - if (splane == NULL) - return -ENOMEM; - - splane->index = index; - splane->alpha = 255; - - ret = drm_universal_plane_init(sdev->ddev, &splane->plane, 1, - &shmob_drm_plane_funcs, - formats, ARRAY_SIZE(formats), NULL, - DRM_PLANE_TYPE_OVERLAY, NULL); - - return ret; -} diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.h b/drivers/gpu/drm/shmobile/shmob_drm_plane.h deleted file mode 100644 index e72b21a4288fc2..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_plane.h +++ /dev/null @@ -1,19 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_plane.h -- SH Mobile DRM Planes - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_PLANE_H__ -#define __SHMOB_DRM_PLANE_H__ - -struct drm_plane; -struct shmob_drm_device; - -int shmob_drm_plane_create(struct shmob_drm_device *sdev, unsigned int index); -void shmob_drm_plane_setup(struct drm_plane *plane); - -#endif /* __SHMOB_DRM_PLANE_H__ */ diff --git a/drivers/gpu/drm/shmobile/shmob_drm_regs.h b/drivers/gpu/drm/shmobile/shmob_drm_regs.h deleted file mode 100644 index 058533685c4cd0..00000000000000 --- a/drivers/gpu/drm/shmobile/shmob_drm_regs.h +++ /dev/null @@ -1,310 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * shmob_drm_regs.h -- SH Mobile DRM registers - * - * Copyright (C) 2012 Renesas Electronics Corporation - * - * Laurent Pinchart (laurent.pinchart@ideasonboard.com) - */ - -#ifndef __SHMOB_DRM_REGS_H__ -#define __SHMOB_DRM_REGS_H__ - -#include -#include - -#include "shmob_drm_drv.h" - -/* Register definitions */ -#define LDDCKPAT1R 0x400 -#define LDDCKPAT2R 0x404 -#define LDDCKR 0x410 -#define LDDCKR_ICKSEL_BUS (0 << 16) -#define LDDCKR_ICKSEL_MIPI (1 << 16) -#define LDDCKR_ICKSEL_HDMI (2 << 16) -#define LDDCKR_ICKSEL_EXT (3 << 16) -#define LDDCKR_ICKSEL_MASK (7 << 16) -#define LDDCKR_MOSEL (1 << 6) -#define LDDCKSTPR 0x414 -#define LDDCKSTPR_DCKSTS (1 << 16) -#define LDDCKSTPR_DCKSTP (1 << 0) -#define LDMT1R 0x418 -#define LDMT1R_VPOL (1 << 28) -#define LDMT1R_HPOL (1 << 27) -#define LDMT1R_DWPOL (1 << 26) -#define LDMT1R_DIPOL (1 << 25) -#define LDMT1R_DAPOL (1 << 24) -#define LDMT1R_HSCNT (1 << 17) -#define LDMT1R_DWCNT (1 << 16) -#define LDMT1R_IFM (1 << 12) -#define LDMT1R_MIFTYP_RGB8 (0x0 << 0) -#define LDMT1R_MIFTYP_RGB9 (0x4 << 0) -#define LDMT1R_MIFTYP_RGB12A (0x5 << 0) -#define LDMT1R_MIFTYP_RGB12B (0x6 << 0) -#define LDMT1R_MIFTYP_RGB16 (0x7 << 0) -#define LDMT1R_MIFTYP_RGB18 (0xa << 0) -#define LDMT1R_MIFTYP_RGB24 (0xb << 0) -#define LDMT1R_MIFTYP_YCBCR (0xf << 0) -#define LDMT1R_MIFTYP_SYS8A (0x0 << 0) -#define LDMT1R_MIFTYP_SYS8B (0x1 << 0) -#define LDMT1R_MIFTYP_SYS8C (0x2 << 0) -#define LDMT1R_MIFTYP_SYS8D (0x3 << 0) -#define LDMT1R_MIFTYP_SYS9 (0x4 << 0) -#define LDMT1R_MIFTYP_SYS12 (0x5 << 0) -#define LDMT1R_MIFTYP_SYS16A (0x7 << 0) -#define LDMT1R_MIFTYP_SYS16B (0x8 << 0) -#define LDMT1R_MIFTYP_SYS16C (0x9 << 0) -#define LDMT1R_MIFTYP_SYS18 (0xa << 0) -#define LDMT1R_MIFTYP_SYS24 (0xb << 0) -#define LDMT1R_MIFTYP_MASK (0xf << 0) -#define LDMT2R 0x41c -#define LDMT2R_CSUP_MASK (7 << 26) -#define LDMT2R_CSUP_SHIFT 26 -#define LDMT2R_RSV (1 << 25) -#define LDMT2R_VSEL (1 << 24) -#define LDMT2R_WCSC_MASK (0xff << 16) -#define LDMT2R_WCSC_SHIFT 16 -#define LDMT2R_WCEC_MASK (0xff << 8) -#define LDMT2R_WCEC_SHIFT 8 -#define LDMT2R_WCLW_MASK (0xff << 0) -#define LDMT2R_WCLW_SHIFT 0 -#define LDMT3R 0x420 -#define LDMT3R_RDLC_MASK (0x3f << 24) -#define LDMT3R_RDLC_SHIFT 24 -#define LDMT3R_RCSC_MASK (0xff << 16) -#define LDMT3R_RCSC_SHIFT 16 -#define LDMT3R_RCEC_MASK (0xff << 8) -#define LDMT3R_RCEC_SHIFT 8 -#define LDMT3R_RCLW_MASK (0xff << 0) -#define LDMT3R_RCLW_SHIFT 0 -#define LDDFR 0x424 -#define LDDFR_CF1 (1 << 18) -#define LDDFR_CF0 (1 << 17) -#define LDDFR_CC (1 << 16) -#define LDDFR_YF_420 (0 << 8) -#define LDDFR_YF_422 (1 << 8) -#define LDDFR_YF_444 (2 << 8) -#define LDDFR_YF_MASK (3 << 8) -#define LDDFR_PKF_ARGB32 (0x00 << 0) -#define LDDFR_PKF_RGB16 (0x03 << 0) -#define LDDFR_PKF_RGB24 (0x0b << 0) -#define LDDFR_PKF_MASK (0x1f << 0) -#define LDSM1R 0x428 -#define LDSM1R_OS (1 << 0) -#define LDSM2R 0x42c -#define LDSM2R_OSTRG (1 << 0) -#define LDSA1R 0x430 -#define LDSA2R 0x434 -#define LDMLSR 0x438 -#define LDWBFR 0x43c -#define LDWBCNTR 0x440 -#define LDWBAR 0x444 -#define LDHCNR 0x448 -#define LDHSYNR 0x44c -#define LDVLNR 0x450 -#define LDVSYNR 0x454 -#define LDHPDR 0x458 -#define LDVPDR 0x45c -#define LDPMR 0x460 -#define LDPMR_LPS (3 << 0) -#define LDINTR 0x468 -#define LDINTR_FE (1 << 10) -#define LDINTR_VSE (1 << 9) -#define LDINTR_VEE (1 << 8) -#define LDINTR_FS (1 << 2) -#define LDINTR_VSS (1 << 1) -#define LDINTR_VES (1 << 0) -#define LDINTR_STATUS_MASK (0xff << 0) -#define LDSR 0x46c -#define LDSR_MSS (1 << 10) -#define LDSR_MRS (1 << 8) -#define LDSR_AS (1 << 1) -#define LDCNT1R 0x470 -#define LDCNT1R_DE (1 << 0) -#define LDCNT2R 0x474 -#define LDCNT2R_BR (1 << 8) -#define LDCNT2R_MD (1 << 3) -#define LDCNT2R_SE (1 << 2) -#define LDCNT2R_ME (1 << 1) -#define LDCNT2R_DO (1 << 0) -#define LDRCNTR 0x478 -#define LDRCNTR_SRS (1 << 17) -#define LDRCNTR_SRC (1 << 16) -#define LDRCNTR_MRS (1 << 1) -#define LDRCNTR_MRC (1 << 0) -#define LDDDSR 0x47c -#define LDDDSR_LS (1 << 2) -#define LDDDSR_WS (1 << 1) -#define LDDDSR_BS (1 << 0) -#define LDHAJR 0x4a0 - -#define LDDWD0R 0x800 -#define LDDWDxR_WDACT (1 << 28) -#define LDDWDxR_RSW (1 << 24) -#define LDDRDR 0x840 -#define LDDRDR_RSR (1 << 24) -#define LDDRDR_DRD_MASK (0x3ffff << 0) -#define LDDWAR 0x900 -#define LDDWAR_WA (1 << 0) -#define LDDRAR 0x904 -#define LDDRAR_RA (1 << 0) - -#define LDBCR 0xb00 -#define LDBCR_UPC(n) (1 << ((n) + 16)) -#define LDBCR_UPF(n) (1 << ((n) + 8)) -#define LDBCR_UPD(n) (1 << ((n) + 0)) -#define LDBnBSIFR(n) (0xb20 + (n) * 0x20 + 0x00) -#define LDBBSIFR_EN (1 << 31) -#define LDBBSIFR_VS (1 << 29) -#define LDBBSIFR_BRSEL (1 << 28) -#define LDBBSIFR_MX (1 << 27) -#define LDBBSIFR_MY (1 << 26) -#define LDBBSIFR_CV3 (3 << 24) -#define LDBBSIFR_CV2 (2 << 24) -#define LDBBSIFR_CV1 (1 << 24) -#define LDBBSIFR_CV0 (0 << 24) -#define LDBBSIFR_CV_MASK (3 << 24) -#define LDBBSIFR_LAY_MASK (0xff << 16) -#define LDBBSIFR_LAY_SHIFT 16 -#define LDBBSIFR_ROP3_MASK (0xff << 16) -#define LDBBSIFR_ROP3_SHIFT 16 -#define LDBBSIFR_AL_PL8 (3 << 14) -#define LDBBSIFR_AL_PL1 (2 << 14) -#define LDBBSIFR_AL_PK (1 << 14) -#define LDBBSIFR_AL_1 (0 << 14) -#define LDBBSIFR_AL_MASK (3 << 14) -#define LDBBSIFR_SWPL (1 << 10) -#define LDBBSIFR_SWPW (1 << 9) -#define LDBBSIFR_SWPB (1 << 8) -#define LDBBSIFR_RY (1 << 7) -#define LDBBSIFR_CHRR_420 (2 << 0) -#define LDBBSIFR_CHRR_422 (1 << 0) -#define LDBBSIFR_CHRR_444 (0 << 0) -#define LDBBSIFR_RPKF_ARGB32 (0x00 << 0) -#define LDBBSIFR_RPKF_RGB16 (0x03 << 0) -#define LDBBSIFR_RPKF_RGB24 (0x0b << 0) -#define LDBBSIFR_RPKF_MASK (0x1f << 0) -#define LDBnBSSZR(n) (0xb20 + (n) * 0x20 + 0x04) -#define LDBBSSZR_BVSS_MASK (0xfff << 16) -#define LDBBSSZR_BVSS_SHIFT 16 -#define LDBBSSZR_BHSS_MASK (0xfff << 0) -#define LDBBSSZR_BHSS_SHIFT 0 -#define LDBnBLOCR(n) (0xb20 + (n) * 0x20 + 0x08) -#define LDBBLOCR_CVLC_MASK (0xfff << 16) -#define LDBBLOCR_CVLC_SHIFT 16 -#define LDBBLOCR_CHLC_MASK (0xfff << 0) -#define LDBBLOCR_CHLC_SHIFT 0 -#define LDBnBSMWR(n) (0xb20 + (n) * 0x20 + 0x0c) -#define LDBBSMWR_BSMWA_MASK (0xffff << 16) -#define LDBBSMWR_BSMWA_SHIFT 16 -#define LDBBSMWR_BSMW_MASK (0xffff << 0) -#define LDBBSMWR_BSMW_SHIFT 0 -#define LDBnBSAYR(n) (0xb20 + (n) * 0x20 + 0x10) -#define LDBBSAYR_FG1A_MASK (0xff << 24) -#define LDBBSAYR_FG1A_SHIFT 24 -#define LDBBSAYR_FG1R_MASK (0xff << 16) -#define LDBBSAYR_FG1R_SHIFT 16 -#define LDBBSAYR_FG1G_MASK (0xff << 8) -#define LDBBSAYR_FG1G_SHIFT 8 -#define LDBBSAYR_FG1B_MASK (0xff << 0) -#define LDBBSAYR_FG1B_SHIFT 0 -#define LDBnBSACR(n) (0xb20 + (n) * 0x20 + 0x14) -#define LDBBSACR_FG2A_MASK (0xff << 24) -#define LDBBSACR_FG2A_SHIFT 24 -#define LDBBSACR_FG2R_MASK (0xff << 16) -#define LDBBSACR_FG2R_SHIFT 16 -#define LDBBSACR_FG2G_MASK (0xff << 8) -#define LDBBSACR_FG2G_SHIFT 8 -#define LDBBSACR_FG2B_MASK (0xff << 0) -#define LDBBSACR_FG2B_SHIFT 0 -#define LDBnBSAAR(n) (0xb20 + (n) * 0x20 + 0x18) -#define LDBBSAAR_AP_MASK (0xff << 24) -#define LDBBSAAR_AP_SHIFT 24 -#define LDBBSAAR_R_MASK (0xff << 16) -#define LDBBSAAR_R_SHIFT 16 -#define LDBBSAAR_GY_MASK (0xff << 8) -#define LDBBSAAR_GY_SHIFT 8 -#define LDBBSAAR_B_MASK (0xff << 0) -#define LDBBSAAR_B_SHIFT 0 -#define LDBnBPPCR(n) (0xb20 + (n) * 0x20 + 0x1c) -#define LDBBPPCR_AP_MASK (0xff << 24) -#define LDBBPPCR_AP_SHIFT 24 -#define LDBBPPCR_R_MASK (0xff << 16) -#define LDBBPPCR_R_SHIFT 16 -#define LDBBPPCR_GY_MASK (0xff << 8) -#define LDBBPPCR_GY_SHIFT 8 -#define LDBBPPCR_B_MASK (0xff << 0) -#define LDBBPPCR_B_SHIFT 0 -#define LDBnBBGCL(n) (0xb10 + (n) * 0x04) -#define LDBBBGCL_BGA_MASK (0xff << 24) -#define LDBBBGCL_BGA_SHIFT 24 -#define LDBBBGCL_BGR_MASK (0xff << 16) -#define LDBBBGCL_BGR_SHIFT 16 -#define LDBBBGCL_BGG_MASK (0xff << 8) -#define LDBBBGCL_BGG_SHIFT 8 -#define LDBBBGCL_BGB_MASK (0xff << 0) -#define LDBBBGCL_BGB_SHIFT 0 - -#define LCDC_SIDE_B_OFFSET 0x1000 -#define LCDC_MIRROR_OFFSET 0x2000 - -static inline bool lcdc_is_banked(u32 reg) -{ - switch (reg) { - case LDMT1R: - case LDMT2R: - case LDMT3R: - case LDDFR: - case LDSM1R: - case LDSA1R: - case LDSA2R: - case LDMLSR: - case LDWBFR: - case LDWBCNTR: - case LDWBAR: - case LDHCNR: - case LDHSYNR: - case LDVLNR: - case LDVSYNR: - case LDHPDR: - case LDVPDR: - case LDHAJR: - return true; - default: - return reg >= LDBnBBGCL(0) && reg <= LDBnBPPCR(3); - } -} - -static inline void lcdc_write_mirror(struct shmob_drm_device *sdev, u32 reg, - u32 data) -{ - iowrite32(data, sdev->mmio + reg + LCDC_MIRROR_OFFSET); -} - -static inline void lcdc_write(struct shmob_drm_device *sdev, u32 reg, u32 data) -{ - iowrite32(data, sdev->mmio + reg); - if (lcdc_is_banked(reg)) - iowrite32(data, sdev->mmio + reg + LCDC_SIDE_B_OFFSET); -} - -static inline u32 lcdc_read(struct shmob_drm_device *sdev, u32 reg) -{ - return ioread32(sdev->mmio + reg); -} - -static inline int lcdc_wait_bit(struct shmob_drm_device *sdev, u32 reg, - u32 mask, u32 until) -{ - unsigned long timeout = jiffies + msecs_to_jiffies(5); - - while ((lcdc_read(sdev, reg) & mask) != until) { - if (time_after(jiffies, timeout)) - return -ETIMEDOUT; - cpu_relax(); - } - - return 0; -} - -#endif /* __SHMOB_DRM_REGS_H__ */ From patchwork Fri Jan 13 06:23:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643102 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E46DC678DB for ; Fri, 13 Jan 2023 06:25:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240617AbjAMGZR (ORCPT ); Fri, 13 Jan 2023 01:25:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33406 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236259AbjAMGYQ (ORCPT ); Fri, 13 Jan 2023 01:24:16 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 469BF5BA26; Thu, 12 Jan 2023 22:23:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=pE5vHsweVi9sw+XFtbQOjd8ZmlFDvTP0hqXRxtOPgdI=; b=UPm4fiFNqG828TmS+12Rola8gO eqHlHcKs17NiINhJVso8pQaJLXAawxXFCKuLlP7HRjKIjJN2ZXqL/cl3jIEux4plqaePmjKWoVYai QlJizCpTb7yVhQxL/QJWjJ37KmX8qVxA7Rot4hYXsbm50Ukgoehbb75E6d7ZbOqa0NS55yCF1vD12 hTv+9XqO7HKABDyO220qXwurWxcmgcwBxl9/GRlKpDUCPyGWGMAz1KKVnajqZK+KC0juYlZ2W8UlT 3xv/hB5gSMNo2fI0kJb/GNm6IFqQb0S3ZTYgJMi4xbRkGq5u2ysaI8Zc1eFL7BGimSK1gVFq75foe LEx3cuRw==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDTf-000lNa-NO; Fri, 13 Jan 2023 06:23:48 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 02/22] usb: remove the dead USB_OHCI_SH option Date: Fri, 13 Jan 2023 07:23:19 +0100 Message-Id: <20230113062339.1909087-3-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org USB_OHCI_SH is a dummy option that never builds any code, remove it. Signed-off-by: Christoph Hellwig --- drivers/usb/host/Kconfig | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 8d799d23c476e1..ca5f657c092cf4 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -548,17 +548,6 @@ config USB_OHCI_HCD_SSB If unsure, say N. -config USB_OHCI_SH - bool "OHCI support for SuperH USB controller (DEPRECATED)" - depends on SUPERH || COMPILE_TEST - select USB_OHCI_HCD_PLATFORM - help - This option is deprecated now and the driver was removed, use - USB_OHCI_HCD_PLATFORM instead. - - Enables support for the on-chip OHCI controller on the SuperH. - If you use the PCI OHCI controller, this option is not necessary. - config USB_OHCI_EXYNOS tristate "OHCI support for Samsung S5P/Exynos SoC Series" depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST From patchwork Fri Jan 13 06:23:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643101 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D0CDC54EBD for ; Fri, 13 Jan 2023 06:25:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240674AbjAMGZu (ORCPT ); Fri, 13 Jan 2023 01:25:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33442 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239005AbjAMGYb (ORCPT ); Fri, 13 Jan 2023 01:24:31 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1E0669B33; Thu, 12 Jan 2023 22:24:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=YWdaNZZD6eiGGHiQwqB4d/n7vbdllZAZ4PVlQ9KrUog=; b=XtPGvVCciAHH/ZLi442ryHF6rq FvgKnRpeqvwCx9UPgqvxyoSez2P7/TsQH4CCdKmAVKMjtEs7KN5fhRpLHTjMdmTb4fMzzf6CmNKlf rXdbPlEScIlBvjJrEpLQ9Qz+cT5QX9vrjKWKFTMLmEzur4VlSN6Xl4jhStM3ZSCwOvwfNkCRTuNnR wJyIbeNnp1Bzl3/RFdCiY+e0gUrTlrvJFtmxx0gpbmv+sIP/JUZGEtJIDk593yDFSk9RClQJfmg7Y 4kjnLNtrXGl9NJsEFRSHVUmWUakVHMHmyXzQxjKYElq0QLSA3Qcs/NoVXvf4FXw2zlWkEQ7IFJk43 R2e+Go7Q==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDTr-000lRy-FI; Fri, 13 Jan 2023 06:24:00 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 04/22] sound: remove sound/sh Date: Fri, 13 Jan 2023 07:23:21 +0100 Message-Id: <20230113062339.1909087-5-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed these drivers are dead code. Signed-off-by: Christoph Hellwig --- sound/Kconfig | 2 - sound/Makefile | 2 +- sound/sh/Kconfig | 32 -- sound/sh/Makefile | 11 - sound/sh/aica.c | 628 ---------------------------------------- sound/sh/aica.h | 68 ----- sound/sh/sh_dac_audio.c | 412 -------------------------- 7 files changed, 1 insertion(+), 1154 deletions(-) delete mode 100644 sound/sh/Kconfig delete mode 100644 sound/sh/Makefile delete mode 100644 sound/sh/aica.c delete mode 100644 sound/sh/aica.h delete mode 100644 sound/sh/sh_dac_audio.c diff --git a/sound/Kconfig b/sound/Kconfig index e56d96d2b11cae..14361bb428baa1 100644 --- a/sound/Kconfig +++ b/sound/Kconfig @@ -75,8 +75,6 @@ source "sound/spi/Kconfig" source "sound/mips/Kconfig" -source "sound/sh/Kconfig" - # the following will depend on the order of config. # here assuming USB is defined before ALSA source "sound/usb/Kconfig" diff --git a/sound/Makefile b/sound/Makefile index 04ef04b1168f39..bb4b8806321c67 100644 --- a/sound/Makefile +++ b/sound/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_SOUND) += soundcore.o obj-$(CONFIG_DMASOUND) += oss/dmasound/ -obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \ +obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ synth/ usb/ \ firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/ hda/ x86/ xen/ \ virtio/ obj-$(CONFIG_SND_AOA) += aoa/ diff --git a/sound/sh/Kconfig b/sound/sh/Kconfig deleted file mode 100644 index b75fbb3236a7b9..00000000000000 --- a/sound/sh/Kconfig +++ /dev/null @@ -1,32 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# ALSA SH drivers - -menuconfig SND_SUPERH - bool "SUPERH sound devices" - depends on SUPERH - default y - help - Support for sound devices specific to SUPERH architectures. - Drivers that are implemented on ASoC can be found in - "ALSA for SoC audio support" section. - -if SND_SUPERH - -config SND_AICA - tristate "Dreamcast Yamaha AICA sound" - depends on SH_DREAMCAST - select SND_PCM - select G2_DMA - help - ALSA Sound driver for the SEGA Dreamcast console. - -config SND_SH_DAC_AUDIO - tristate "SuperH DAC audio support" - depends on SND - depends on CPU_SH3 && HIGH_RES_TIMERS - select SND_PCM - help - Say Y here to include support for the on-chip DAC. - -endif # SND_SUPERH - diff --git a/sound/sh/Makefile b/sound/sh/Makefile deleted file mode 100644 index c0bbc500c17c73..00000000000000 --- a/sound/sh/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for ALSA -# - -snd-aica-objs := aica.o -snd-sh_dac_audio-objs := sh_dac_audio.o - -# Toplevel Module Dependency -obj-$(CONFIG_SND_AICA) += snd-aica.o -obj-$(CONFIG_SND_SH_DAC_AUDIO) += snd-sh_dac_audio.o diff --git a/sound/sh/aica.c b/sound/sh/aica.c deleted file mode 100644 index 6e9d6bd67369af..00000000000000 --- a/sound/sh/aica.c +++ /dev/null @@ -1,628 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* -* -* Copyright Adrian McMenamin 2005, 2006, 2007 -* -* Requires firmware (BSD licenced) available from: -* http://linuxdc.cvs.sourceforge.net/linuxdc/linux-sh-dc/sound/oss/aica/firmware/ -* or the maintainer -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "aica.h" - -MODULE_AUTHOR("Adrian McMenamin "); -MODULE_DESCRIPTION("Dreamcast AICA sound (pcm) driver"); -MODULE_LICENSE("GPL"); -MODULE_FIRMWARE("aica_firmware.bin"); - -/* module parameters */ -#define CARD_NAME "AICA" -static int index = -1; -static char *id; -static bool enable = 1; -module_param(index, int, 0444); -MODULE_PARM_DESC(index, "Index value for " CARD_NAME " soundcard."); -module_param(id, charp, 0444); -MODULE_PARM_DESC(id, "ID string for " CARD_NAME " soundcard."); -module_param(enable, bool, 0644); -MODULE_PARM_DESC(enable, "Enable " CARD_NAME " soundcard."); - -/* Simple platform device */ -static struct platform_device *pd; -static struct resource aica_memory_space[2] = { - { - .name = "AICA ARM CONTROL", - .start = ARM_RESET_REGISTER, - .flags = IORESOURCE_MEM, - .end = ARM_RESET_REGISTER + 3, - }, - { - .name = "AICA Sound RAM", - .start = SPU_MEMORY_BASE, - .flags = IORESOURCE_MEM, - .end = SPU_MEMORY_BASE + 0x200000 - 1, - }, -}; - -/* SPU specific functions */ -/* spu_write_wait - wait for G2-SH FIFO to clear */ -static void spu_write_wait(void) -{ - int time_count; - time_count = 0; - while (1) { - if (!(readl(G2_FIFO) & 0x11)) - break; - /* To ensure hardware failure doesn't wedge kernel */ - time_count++; - if (time_count > 0x10000) { - snd_printk - ("WARNING: G2 FIFO appears to be blocked.\n"); - break; - } - } -} - -/* spu_memset - write to memory in SPU address space */ -static void spu_memset(u32 toi, u32 what, int length) -{ - int i; - unsigned long flags; - if (snd_BUG_ON(length % 4)) - return; - for (i = 0; i < length; i++) { - if (!(i % 8)) - spu_write_wait(); - local_irq_save(flags); - writel(what, toi + SPU_MEMORY_BASE); - local_irq_restore(flags); - toi++; - } -} - -/* spu_memload - write to SPU address space */ -static void spu_memload(u32 toi, const void *from, int length) -{ - unsigned long flags; - const u32 *froml = from; - u32 __iomem *to = (u32 __iomem *) (SPU_MEMORY_BASE + toi); - int i; - u32 val; - length = DIV_ROUND_UP(length, 4); - spu_write_wait(); - for (i = 0; i < length; i++) { - if (!(i % 8)) - spu_write_wait(); - val = *froml; - local_irq_save(flags); - writel(val, to); - local_irq_restore(flags); - froml++; - to++; - } -} - -/* spu_disable - set spu registers to stop sound output */ -static void spu_disable(void) -{ - int i; - unsigned long flags; - u32 regval; - spu_write_wait(); - regval = readl(ARM_RESET_REGISTER); - regval |= 1; - spu_write_wait(); - local_irq_save(flags); - writel(regval, ARM_RESET_REGISTER); - local_irq_restore(flags); - for (i = 0; i < 64; i++) { - spu_write_wait(); - regval = readl(SPU_REGISTER_BASE + (i * 0x80)); - regval = (regval & ~0x4000) | 0x8000; - spu_write_wait(); - local_irq_save(flags); - writel(regval, SPU_REGISTER_BASE + (i * 0x80)); - local_irq_restore(flags); - } -} - -/* spu_enable - set spu registers to enable sound output */ -static void spu_enable(void) -{ - unsigned long flags; - u32 regval = readl(ARM_RESET_REGISTER); - regval &= ~1; - spu_write_wait(); - local_irq_save(flags); - writel(regval, ARM_RESET_REGISTER); - local_irq_restore(flags); -} - -/* - * Halt the sound processor, clear the memory, - * load some default ARM7 code, and then restart ARM7 -*/ -static void spu_reset(void) -{ - unsigned long flags; - spu_disable(); - spu_memset(0, 0, 0x200000 / 4); - /* Put ARM7 in endless loop */ - local_irq_save(flags); - __raw_writel(0xea000002, SPU_MEMORY_BASE); - local_irq_restore(flags); - spu_enable(); -} - -/* aica_chn_start - write to spu to start playback */ -static void aica_chn_start(void) -{ - unsigned long flags; - spu_write_wait(); - local_irq_save(flags); - writel(AICA_CMD_KICK | AICA_CMD_START, (u32 *) AICA_CONTROL_POINT); - local_irq_restore(flags); -} - -/* aica_chn_halt - write to spu to halt playback */ -static void aica_chn_halt(void) -{ - unsigned long flags; - spu_write_wait(); - local_irq_save(flags); - writel(AICA_CMD_KICK | AICA_CMD_STOP, (u32 *) AICA_CONTROL_POINT); - local_irq_restore(flags); -} - -/* ALSA code below */ -static const struct snd_pcm_hardware snd_pcm_aica_playback_hw = { - .info = (SNDRV_PCM_INFO_NONINTERLEAVED), - .formats = - (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE | - SNDRV_PCM_FMTBIT_IMA_ADPCM), - .rates = SNDRV_PCM_RATE_8000_48000, - .rate_min = 8000, - .rate_max = 48000, - .channels_min = 1, - .channels_max = 2, - .buffer_bytes_max = AICA_BUFFER_SIZE, - .period_bytes_min = AICA_PERIOD_SIZE, - .period_bytes_max = AICA_PERIOD_SIZE, - .periods_min = AICA_PERIOD_NUMBER, - .periods_max = AICA_PERIOD_NUMBER, -}; - -static int aica_dma_transfer(int channels, int buffer_size, - struct snd_pcm_substream *substream) -{ - int q, err, period_offset; - struct snd_card_aica *dreamcastcard; - struct snd_pcm_runtime *runtime; - unsigned long flags; - err = 0; - dreamcastcard = substream->pcm->private_data; - period_offset = dreamcastcard->clicks; - period_offset %= (AICA_PERIOD_NUMBER / channels); - runtime = substream->runtime; - for (q = 0; q < channels; q++) { - local_irq_save(flags); - err = dma_xfer(AICA_DMA_CHANNEL, - (unsigned long) (runtime->dma_area + - (AICA_BUFFER_SIZE * q) / - channels + - AICA_PERIOD_SIZE * - period_offset), - AICA_CHANNEL0_OFFSET + q * CHANNEL_OFFSET + - AICA_PERIOD_SIZE * period_offset, - buffer_size / channels, AICA_DMA_MODE); - if (unlikely(err < 0)) { - local_irq_restore(flags); - break; - } - dma_wait_for_completion(AICA_DMA_CHANNEL); - local_irq_restore(flags); - } - return err; -} - -static void startup_aica(struct snd_card_aica *dreamcastcard) -{ - spu_memload(AICA_CHANNEL0_CONTROL_OFFSET, - dreamcastcard->channel, sizeof(struct aica_channel)); - aica_chn_start(); -} - -static void run_spu_dma(struct work_struct *work) -{ - int buffer_size; - struct snd_pcm_runtime *runtime; - struct snd_card_aica *dreamcastcard; - dreamcastcard = - container_of(work, struct snd_card_aica, spu_dma_work); - runtime = dreamcastcard->substream->runtime; - if (unlikely(dreamcastcard->dma_check == 0)) { - buffer_size = - frames_to_bytes(runtime, runtime->buffer_size); - if (runtime->channels > 1) - dreamcastcard->channel->flags |= 0x01; - aica_dma_transfer(runtime->channels, buffer_size, - dreamcastcard->substream); - startup_aica(dreamcastcard); - dreamcastcard->clicks = - buffer_size / (AICA_PERIOD_SIZE * runtime->channels); - return; - } else { - aica_dma_transfer(runtime->channels, - AICA_PERIOD_SIZE * runtime->channels, - dreamcastcard->substream); - snd_pcm_period_elapsed(dreamcastcard->substream); - dreamcastcard->clicks++; - if (unlikely(dreamcastcard->clicks >= AICA_PERIOD_NUMBER)) - dreamcastcard->clicks %= AICA_PERIOD_NUMBER; - mod_timer(&dreamcastcard->timer, jiffies + 1); - } -} - -static void aica_period_elapsed(struct timer_list *t) -{ - struct snd_card_aica *dreamcastcard = from_timer(dreamcastcard, - t, timer); - struct snd_pcm_substream *substream = dreamcastcard->substream; - /*timer function - so cannot sleep */ - int play_period; - struct snd_pcm_runtime *runtime; - runtime = substream->runtime; - dreamcastcard = substream->pcm->private_data; - /* Have we played out an additional period? */ - play_period = - frames_to_bytes(runtime, - readl - (AICA_CONTROL_CHANNEL_SAMPLE_NUMBER)) / - AICA_PERIOD_SIZE; - if (play_period == dreamcastcard->current_period) { - /* reschedule the timer */ - mod_timer(&(dreamcastcard->timer), jiffies + 1); - return; - } - if (runtime->channels > 1) - dreamcastcard->current_period = play_period; - if (unlikely(dreamcastcard->dma_check == 0)) - dreamcastcard->dma_check = 1; - schedule_work(&(dreamcastcard->spu_dma_work)); -} - -static void spu_begin_dma(struct snd_pcm_substream *substream) -{ - struct snd_card_aica *dreamcastcard; - struct snd_pcm_runtime *runtime; - runtime = substream->runtime; - dreamcastcard = substream->pcm->private_data; - /*get the queue to do the work */ - schedule_work(&(dreamcastcard->spu_dma_work)); - mod_timer(&dreamcastcard->timer, jiffies + 4); -} - -static int snd_aicapcm_pcm_open(struct snd_pcm_substream - *substream) -{ - struct snd_pcm_runtime *runtime; - struct aica_channel *channel; - struct snd_card_aica *dreamcastcard; - if (!enable) - return -ENOENT; - dreamcastcard = substream->pcm->private_data; - channel = kmalloc(sizeof(struct aica_channel), GFP_KERNEL); - if (!channel) - return -ENOMEM; - /* set defaults for channel */ - channel->sfmt = SM_8BIT; - channel->cmd = AICA_CMD_START; - channel->vol = dreamcastcard->master_volume; - channel->pan = 0x80; - channel->pos = 0; - channel->flags = 0; /* default to mono */ - dreamcastcard->channel = channel; - runtime = substream->runtime; - runtime->hw = snd_pcm_aica_playback_hw; - spu_enable(); - dreamcastcard->clicks = 0; - dreamcastcard->current_period = 0; - dreamcastcard->dma_check = 0; - return 0; -} - -static int snd_aicapcm_pcm_close(struct snd_pcm_substream - *substream) -{ - struct snd_card_aica *dreamcastcard = substream->pcm->private_data; - flush_work(&(dreamcastcard->spu_dma_work)); - del_timer(&dreamcastcard->timer); - dreamcastcard->substream = NULL; - kfree(dreamcastcard->channel); - spu_disable(); - return 0; -} - -static int snd_aicapcm_pcm_prepare(struct snd_pcm_substream - *substream) -{ - struct snd_card_aica *dreamcastcard = substream->pcm->private_data; - if ((substream->runtime)->format == SNDRV_PCM_FORMAT_S16_LE) - dreamcastcard->channel->sfmt = SM_16BIT; - dreamcastcard->channel->freq = substream->runtime->rate; - dreamcastcard->substream = substream; - return 0; -} - -static int snd_aicapcm_pcm_trigger(struct snd_pcm_substream - *substream, int cmd) -{ - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - spu_begin_dma(substream); - break; - case SNDRV_PCM_TRIGGER_STOP: - aica_chn_halt(); - break; - default: - return -EINVAL; - } - return 0; -} - -static unsigned long snd_aicapcm_pcm_pointer(struct snd_pcm_substream - *substream) -{ - return readl(AICA_CONTROL_CHANNEL_SAMPLE_NUMBER); -} - -static const struct snd_pcm_ops snd_aicapcm_playback_ops = { - .open = snd_aicapcm_pcm_open, - .close = snd_aicapcm_pcm_close, - .prepare = snd_aicapcm_pcm_prepare, - .trigger = snd_aicapcm_pcm_trigger, - .pointer = snd_aicapcm_pcm_pointer, -}; - -/* TO DO: set up to handle more than one pcm instance */ -static int __init snd_aicapcmchip(struct snd_card_aica - *dreamcastcard, int pcm_index) -{ - struct snd_pcm *pcm; - int err; - /* AICA has no capture ability */ - err = - snd_pcm_new(dreamcastcard->card, "AICA PCM", pcm_index, 1, 0, - &pcm); - if (unlikely(err < 0)) - return err; - pcm->private_data = dreamcastcard; - strcpy(pcm->name, "AICA PCM"); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, - &snd_aicapcm_playback_ops); - /* Allocate the DMA buffers */ - snd_pcm_set_managed_buffer_all(pcm, - SNDRV_DMA_TYPE_CONTINUOUS, - NULL, - AICA_BUFFER_SIZE, - AICA_BUFFER_SIZE); - return 0; -} - -/* Mixer controls */ -#define aica_pcmswitch_info snd_ctl_boolean_mono_info - -static int aica_pcmswitch_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - ucontrol->value.integer.value[0] = 1; /* TO DO: Fix me */ - return 0; -} - -static int aica_pcmswitch_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - if (ucontrol->value.integer.value[0] == 1) - return 0; /* TO DO: Fix me */ - else - aica_chn_halt(); - return 0; -} - -static int aica_pcmvolume_info(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = 0xFF; - return 0; -} - -static int aica_pcmvolume_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_card_aica *dreamcastcard; - dreamcastcard = kcontrol->private_data; - if (unlikely(!dreamcastcard->channel)) - return -ETXTBSY; /* we've not yet been set up */ - ucontrol->value.integer.value[0] = dreamcastcard->channel->vol; - return 0; -} - -static int aica_pcmvolume_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_card_aica *dreamcastcard; - unsigned int vol; - dreamcastcard = kcontrol->private_data; - if (unlikely(!dreamcastcard->channel)) - return -ETXTBSY; - vol = ucontrol->value.integer.value[0]; - if (vol > 0xff) - return -EINVAL; - if (unlikely(dreamcastcard->channel->vol == vol)) - return 0; - dreamcastcard->channel->vol = ucontrol->value.integer.value[0]; - dreamcastcard->master_volume = ucontrol->value.integer.value[0]; - spu_memload(AICA_CHANNEL0_CONTROL_OFFSET, - dreamcastcard->channel, sizeof(struct aica_channel)); - return 1; -} - -static const struct snd_kcontrol_new snd_aica_pcmswitch_control = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Switch", - .index = 0, - .info = aica_pcmswitch_info, - .get = aica_pcmswitch_get, - .put = aica_pcmswitch_put -}; - -static const struct snd_kcontrol_new snd_aica_pcmvolume_control = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Volume", - .index = 0, - .info = aica_pcmvolume_info, - .get = aica_pcmvolume_get, - .put = aica_pcmvolume_put -}; - -static int load_aica_firmware(void) -{ - int err; - const struct firmware *fw_entry; - spu_reset(); - err = request_firmware(&fw_entry, "aica_firmware.bin", &pd->dev); - if (unlikely(err)) - return err; - /* write firmware into memory */ - spu_disable(); - spu_memload(0, fw_entry->data, fw_entry->size); - spu_enable(); - release_firmware(fw_entry); - return err; -} - -static int add_aicamixer_controls(struct snd_card_aica *dreamcastcard) -{ - int err; - err = snd_ctl_add - (dreamcastcard->card, - snd_ctl_new1(&snd_aica_pcmvolume_control, dreamcastcard)); - if (unlikely(err < 0)) - return err; - err = snd_ctl_add - (dreamcastcard->card, - snd_ctl_new1(&snd_aica_pcmswitch_control, dreamcastcard)); - if (unlikely(err < 0)) - return err; - return 0; -} - -static int snd_aica_remove(struct platform_device *devptr) -{ - struct snd_card_aica *dreamcastcard; - dreamcastcard = platform_get_drvdata(devptr); - if (unlikely(!dreamcastcard)) - return -ENODEV; - snd_card_free(dreamcastcard->card); - kfree(dreamcastcard); - return 0; -} - -static int snd_aica_probe(struct platform_device *devptr) -{ - int err; - struct snd_card_aica *dreamcastcard; - dreamcastcard = kzalloc(sizeof(struct snd_card_aica), GFP_KERNEL); - if (unlikely(!dreamcastcard)) - return -ENOMEM; - err = snd_card_new(&devptr->dev, index, SND_AICA_DRIVER, - THIS_MODULE, 0, &dreamcastcard->card); - if (unlikely(err < 0)) { - kfree(dreamcastcard); - return err; - } - strcpy(dreamcastcard->card->driver, "snd_aica"); - strcpy(dreamcastcard->card->shortname, SND_AICA_DRIVER); - strcpy(dreamcastcard->card->longname, - "Yamaha AICA Super Intelligent Sound Processor for SEGA Dreamcast"); - /* Prepare to use the queue */ - INIT_WORK(&(dreamcastcard->spu_dma_work), run_spu_dma); - timer_setup(&dreamcastcard->timer, aica_period_elapsed, 0); - /* Load the PCM 'chip' */ - err = snd_aicapcmchip(dreamcastcard, 0); - if (unlikely(err < 0)) - goto freedreamcast; - /* Add basic controls */ - err = add_aicamixer_controls(dreamcastcard); - if (unlikely(err < 0)) - goto freedreamcast; - /* Register the card with ALSA subsystem */ - err = snd_card_register(dreamcastcard->card); - if (unlikely(err < 0)) - goto freedreamcast; - platform_set_drvdata(devptr, dreamcastcard); - snd_printk - ("ALSA Driver for Yamaha AICA Super Intelligent Sound Processor\n"); - return 0; - freedreamcast: - snd_card_free(dreamcastcard->card); - kfree(dreamcastcard); - return err; -} - -static struct platform_driver snd_aica_driver = { - .probe = snd_aica_probe, - .remove = snd_aica_remove, - .driver = { - .name = SND_AICA_DRIVER, - }, -}; - -static int __init aica_init(void) -{ - int err; - err = platform_driver_register(&snd_aica_driver); - if (unlikely(err < 0)) - return err; - pd = platform_device_register_simple(SND_AICA_DRIVER, -1, - aica_memory_space, 2); - if (IS_ERR(pd)) { - platform_driver_unregister(&snd_aica_driver); - return PTR_ERR(pd); - } - /* Load the firmware */ - return load_aica_firmware(); -} - -static void __exit aica_exit(void) -{ - platform_device_unregister(pd); - platform_driver_unregister(&snd_aica_driver); - /* Kill any sound still playing and reset ARM7 to safe state */ - spu_reset(); -} - -module_init(aica_init); -module_exit(aica_exit); diff --git a/sound/sh/aica.h b/sound/sh/aica.h deleted file mode 100644 index 021b132e088e82..00000000000000 --- a/sound/sh/aica.h +++ /dev/null @@ -1,68 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* aica.h - * Header file for ALSA driver for - * Sega Dreamcast Yamaha AICA sound - * Copyright Adrian McMenamin - * - * 2006 - */ - -/* SPU memory and register constants etc */ -#define G2_FIFO 0xa05f688c -#define SPU_MEMORY_BASE 0xA0800000 -#define ARM_RESET_REGISTER 0xA0702C00 -#define SPU_REGISTER_BASE 0xA0700000 - -/* AICA channels stuff */ -#define AICA_CONTROL_POINT 0xA0810000 -#define AICA_CONTROL_CHANNEL_SAMPLE_NUMBER 0xA0810008 -#define AICA_CHANNEL0_CONTROL_OFFSET 0x10004 - -/* Command values */ -#define AICA_CMD_KICK 0x80000000 -#define AICA_CMD_NONE 0 -#define AICA_CMD_START 1 -#define AICA_CMD_STOP 2 -#define AICA_CMD_VOL 3 - -/* Sound modes */ -#define SM_8BIT 1 -#define SM_16BIT 0 -#define SM_ADPCM 2 - -/* Buffer and period size */ -#define AICA_BUFFER_SIZE 0x8000 -#define AICA_PERIOD_SIZE 0x800 -#define AICA_PERIOD_NUMBER 16 - -#define AICA_CHANNEL0_OFFSET 0x11000 -#define AICA_CHANNEL1_OFFSET 0x21000 -#define CHANNEL_OFFSET 0x10000 - -#define AICA_DMA_CHANNEL 5 -#define AICA_DMA_MODE 5 - -#define SND_AICA_DRIVER "AICA" - -struct aica_channel { - uint32_t cmd; /* Command ID */ - uint32_t pos; /* Sample position */ - uint32_t length; /* Sample length */ - uint32_t freq; /* Frequency */ - uint32_t vol; /* Volume 0-255 */ - uint32_t pan; /* Pan 0-255 */ - uint32_t sfmt; /* Sound format */ - uint32_t flags; /* Bit flags */ -}; - -struct snd_card_aica { - struct work_struct spu_dma_work; - struct snd_card *card; - struct aica_channel *channel; - struct snd_pcm_substream *substream; - int clicks; - int current_period; - struct timer_list timer; - int master_volume; - int dma_check; -}; diff --git a/sound/sh/sh_dac_audio.c b/sound/sh/sh_dac_audio.c deleted file mode 100644 index 8ebd972846acb5..00000000000000 --- a/sound/sh/sh_dac_audio.c +++ /dev/null @@ -1,412 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * sh_dac_audio.c - SuperH DAC audio driver for ALSA - * - * Copyright (c) 2009 by Rafael Ignacio Zurita - * - * Based on sh_dac_audio.c (Copyright (C) 2004, 2005 by Andriy Skulysh) - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -MODULE_AUTHOR("Rafael Ignacio Zurita "); -MODULE_DESCRIPTION("SuperH DAC audio driver"); -MODULE_LICENSE("GPL"); - -/* Module Parameters */ -static int index = SNDRV_DEFAULT_IDX1; -static char *id = SNDRV_DEFAULT_STR1; -module_param(index, int, 0444); -MODULE_PARM_DESC(index, "Index value for SuperH DAC audio."); -module_param(id, charp, 0444); -MODULE_PARM_DESC(id, "ID string for SuperH DAC audio."); - -/* main struct */ -struct snd_sh_dac { - struct snd_card *card; - struct snd_pcm_substream *substream; - struct hrtimer hrtimer; - ktime_t wakeups_per_second; - - int rate; - int empty; - char *data_buffer, *buffer_begin, *buffer_end; - int processed; /* bytes proccesed, to compare with period_size */ - int buffer_size; - struct dac_audio_pdata *pdata; -}; - - -static void dac_audio_start_timer(struct snd_sh_dac *chip) -{ - hrtimer_start(&chip->hrtimer, chip->wakeups_per_second, - HRTIMER_MODE_REL); -} - -static void dac_audio_stop_timer(struct snd_sh_dac *chip) -{ - hrtimer_cancel(&chip->hrtimer); -} - -static void dac_audio_reset(struct snd_sh_dac *chip) -{ - dac_audio_stop_timer(chip); - chip->buffer_begin = chip->buffer_end = chip->data_buffer; - chip->processed = 0; - chip->empty = 1; -} - -static void dac_audio_set_rate(struct snd_sh_dac *chip) -{ - chip->wakeups_per_second = 1000000000 / chip->rate; -} - - -/* PCM INTERFACE */ - -static const struct snd_pcm_hardware snd_sh_dac_pcm_hw = { - .info = (SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_HALF_DUPLEX), - .formats = SNDRV_PCM_FMTBIT_U8, - .rates = SNDRV_PCM_RATE_8000, - .rate_min = 8000, - .rate_max = 8000, - .channels_min = 1, - .channels_max = 1, - .buffer_bytes_max = (48*1024), - .period_bytes_min = 1, - .period_bytes_max = (48*1024), - .periods_min = 1, - .periods_max = 1024, -}; - -static int snd_sh_dac_pcm_open(struct snd_pcm_substream *substream) -{ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = substream->runtime; - - runtime->hw = snd_sh_dac_pcm_hw; - - chip->substream = substream; - chip->buffer_begin = chip->buffer_end = chip->data_buffer; - chip->processed = 0; - chip->empty = 1; - - chip->pdata->start(chip->pdata); - - return 0; -} - -static int snd_sh_dac_pcm_close(struct snd_pcm_substream *substream) -{ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - chip->substream = NULL; - - dac_audio_stop_timer(chip); - chip->pdata->stop(chip->pdata); - - return 0; -} - -static int snd_sh_dac_pcm_prepare(struct snd_pcm_substream *substream) -{ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - struct snd_pcm_runtime *runtime = chip->substream->runtime; - - chip->buffer_size = runtime->buffer_size; - memset(chip->data_buffer, 0, chip->pdata->buffer_size); - - return 0; -} - -static int snd_sh_dac_pcm_trigger(struct snd_pcm_substream *substream, int cmd) -{ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - dac_audio_start_timer(chip); - break; - case SNDRV_PCM_TRIGGER_STOP: - chip->buffer_begin = chip->buffer_end = chip->data_buffer; - chip->processed = 0; - chip->empty = 1; - dac_audio_stop_timer(chip); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int snd_sh_dac_pcm_copy(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void __user *src, unsigned long count) -{ - /* channel is not used (interleaved data) */ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - if (copy_from_user_toio(chip->data_buffer + pos, src, count)) - return -EFAULT; - chip->buffer_end = chip->data_buffer + pos + count; - - if (chip->empty) { - chip->empty = 0; - dac_audio_start_timer(chip); - } - - return 0; -} - -static int snd_sh_dac_pcm_copy_kernel(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - void *src, unsigned long count) -{ - /* channel is not used (interleaved data) */ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - memcpy_toio(chip->data_buffer + pos, src, count); - chip->buffer_end = chip->data_buffer + pos + count; - - if (chip->empty) { - chip->empty = 0; - dac_audio_start_timer(chip); - } - - return 0; -} - -static int snd_sh_dac_pcm_silence(struct snd_pcm_substream *substream, - int channel, unsigned long pos, - unsigned long count) -{ - /* channel is not used (interleaved data) */ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - - memset_io(chip->data_buffer + pos, 0, count); - chip->buffer_end = chip->data_buffer + pos + count; - - if (chip->empty) { - chip->empty = 0; - dac_audio_start_timer(chip); - } - - return 0; -} - -static -snd_pcm_uframes_t snd_sh_dac_pcm_pointer(struct snd_pcm_substream *substream) -{ - struct snd_sh_dac *chip = snd_pcm_substream_chip(substream); - int pointer = chip->buffer_begin - chip->data_buffer; - - return pointer; -} - -/* pcm ops */ -static const struct snd_pcm_ops snd_sh_dac_pcm_ops = { - .open = snd_sh_dac_pcm_open, - .close = snd_sh_dac_pcm_close, - .prepare = snd_sh_dac_pcm_prepare, - .trigger = snd_sh_dac_pcm_trigger, - .pointer = snd_sh_dac_pcm_pointer, - .copy_user = snd_sh_dac_pcm_copy, - .copy_kernel = snd_sh_dac_pcm_copy_kernel, - .fill_silence = snd_sh_dac_pcm_silence, - .mmap = snd_pcm_lib_mmap_iomem, -}; - -static int snd_sh_dac_pcm(struct snd_sh_dac *chip, int device) -{ - int err; - struct snd_pcm *pcm; - - /* device should be always 0 for us */ - err = snd_pcm_new(chip->card, "SH_DAC PCM", device, 1, 0, &pcm); - if (err < 0) - return err; - - pcm->private_data = chip; - strcpy(pcm->name, "SH_DAC PCM"); - snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_sh_dac_pcm_ops); - - /* buffer size=48K */ - snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, - NULL, 48 * 1024, 48 * 1024); - - return 0; -} -/* END OF PCM INTERFACE */ - - -/* driver .remove -- destructor */ -static int snd_sh_dac_remove(struct platform_device *devptr) -{ - snd_card_free(platform_get_drvdata(devptr)); - return 0; -} - -/* free -- it has been defined by create */ -static int snd_sh_dac_free(struct snd_sh_dac *chip) -{ - /* release the data */ - kfree(chip->data_buffer); - kfree(chip); - - return 0; -} - -static int snd_sh_dac_dev_free(struct snd_device *device) -{ - struct snd_sh_dac *chip = device->device_data; - - return snd_sh_dac_free(chip); -} - -static enum hrtimer_restart sh_dac_audio_timer(struct hrtimer *handle) -{ - struct snd_sh_dac *chip = container_of(handle, struct snd_sh_dac, - hrtimer); - struct snd_pcm_runtime *runtime = chip->substream->runtime; - ssize_t b_ps = frames_to_bytes(runtime, runtime->period_size); - - if (!chip->empty) { - sh_dac_output(*chip->buffer_begin, chip->pdata->channel); - chip->buffer_begin++; - - chip->processed++; - if (chip->processed >= b_ps) { - chip->processed -= b_ps; - snd_pcm_period_elapsed(chip->substream); - } - - if (chip->buffer_begin == (chip->data_buffer + - chip->buffer_size - 1)) - chip->buffer_begin = chip->data_buffer; - - if (chip->buffer_begin == chip->buffer_end) - chip->empty = 1; - - } - - if (!chip->empty) - hrtimer_start(&chip->hrtimer, chip->wakeups_per_second, - HRTIMER_MODE_REL); - - return HRTIMER_NORESTART; -} - -/* create -- chip-specific constructor for the cards components */ -static int snd_sh_dac_create(struct snd_card *card, - struct platform_device *devptr, - struct snd_sh_dac **rchip) -{ - struct snd_sh_dac *chip; - int err; - - static const struct snd_device_ops ops = { - .dev_free = snd_sh_dac_dev_free, - }; - - *rchip = NULL; - - chip = kzalloc(sizeof(*chip), GFP_KERNEL); - if (chip == NULL) - return -ENOMEM; - - chip->card = card; - - hrtimer_init(&chip->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - chip->hrtimer.function = sh_dac_audio_timer; - - dac_audio_reset(chip); - chip->rate = 8000; - dac_audio_set_rate(chip); - - chip->pdata = devptr->dev.platform_data; - - chip->data_buffer = kmalloc(chip->pdata->buffer_size, GFP_KERNEL); - if (chip->data_buffer == NULL) { - kfree(chip); - return -ENOMEM; - } - - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); - if (err < 0) { - snd_sh_dac_free(chip); - return err; - } - - *rchip = chip; - - return 0; -} - -/* driver .probe -- constructor */ -static int snd_sh_dac_probe(struct platform_device *devptr) -{ - struct snd_sh_dac *chip; - struct snd_card *card; - int err; - - err = snd_card_new(&devptr->dev, index, id, THIS_MODULE, 0, &card); - if (err < 0) { - snd_printk(KERN_ERR "cannot allocate the card\n"); - return err; - } - - err = snd_sh_dac_create(card, devptr, &chip); - if (err < 0) - goto probe_error; - - err = snd_sh_dac_pcm(chip, 0); - if (err < 0) - goto probe_error; - - strcpy(card->driver, "snd_sh_dac"); - strcpy(card->shortname, "SuperH DAC audio driver"); - printk(KERN_INFO "%s %s", card->longname, card->shortname); - - err = snd_card_register(card); - if (err < 0) - goto probe_error; - - snd_printk(KERN_INFO "ALSA driver for SuperH DAC audio"); - - platform_set_drvdata(devptr, card); - return 0; - -probe_error: - snd_card_free(card); - return err; -} - -/* - * "driver" definition - */ -static struct platform_driver sh_dac_driver = { - .probe = snd_sh_dac_probe, - .remove = snd_sh_dac_remove, - .driver = { - .name = "dac_audio", - }, -}; - -module_platform_driver(sh_dac_driver); From patchwork Fri Jan 13 06:23:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642581 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD156C54EBD for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDTu-000lTC-Dy; Fri, 13 Jan 2023 06:24:04 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 05/22] sound: remove sh-specific sounds/soc/sh drivers Date: Fri, 13 Jan 2023 07:23:22 +0100 Message-Id: <20230113062339.1909087-6-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed these drivers are dead code. Signed-off-by: Christoph Hellwig --- sound/soc/sh/Kconfig | 44 -- sound/soc/sh/Makefile | 16 - sound/soc/sh/dma-sh7760.c | 334 ---------------- sound/soc/sh/fsi.c | 9 - sound/soc/sh/hac.c | 345 ---------------- sound/soc/sh/migor.c | 205 ---------- sound/soc/sh/sh7760-ac97.c | 72 ---- sound/soc/sh/siu.h | 180 --------- sound/soc/sh/siu_dai.c | 799 ------------------------------------- sound/soc/sh/siu_pcm.c | 553 ------------------------- sound/soc/sh/ssi.c | 403 ------------------- 11 files changed, 2960 deletions(-) delete mode 100644 sound/soc/sh/dma-sh7760.c delete mode 100644 sound/soc/sh/hac.c delete mode 100644 sound/soc/sh/migor.c delete mode 100644 sound/soc/sh/sh7760-ac97.c delete mode 100644 sound/soc/sh/siu.h delete mode 100644 sound/soc/sh/siu_dai.c delete mode 100644 sound/soc/sh/siu_pcm.c delete mode 100644 sound/soc/sh/ssi.c diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig index 793a0326f32b46..4367927b81df20 100644 --- a/sound/soc/sh/Kconfig +++ b/sound/soc/sh/Kconfig @@ -2,25 +2,10 @@ menu "SoC Audio support for Renesas SoCs" depends on ARCH_RENESAS || COMPILE_TEST -config SND_SOC_PCM_SH7760 - tristate "SoC Audio support for Renesas SH7760" - depends on CPU_SUBTYPE_SH7760 && SH_DMABRG - help - Enable this option for SH7760 AC97/I2S audio support. - - ## ## Audio unit modules ## -config SND_SOC_SH4_HAC - tristate - select AC97_BUS - select SND_SOC_AC97_BUS - -config SND_SOC_SH4_SSI - tristate - config SND_SOC_SH4_FSI tristate "SH4 FSI support" depends on COMMON_CLK @@ -28,14 +13,6 @@ config SND_SOC_SH4_FSI help This option enables FSI sound support -config SND_SOC_SH4_SIU - tristate - depends on ARCH_SHMOBILE && HAVE_CLK - depends on DMADEVICES - select DMA_ENGINE - select SH_DMAE - select FW_LOADER - config SND_SOC_RCAR tristate "R-Car series SRU/SCU/SSIU/SSI support" depends on COMMON_CLK @@ -51,25 +28,4 @@ config SND_SOC_RZ help This option enables RZ/G2L SSIF-2 sound support. -## -## Boards -## - -config SND_SH7760_AC97 - tristate "SH7760 AC97 sound support" - depends on CPU_SUBTYPE_SH7760 && SND_SOC_PCM_SH7760 - select SND_SOC_SH4_HAC - select SND_SOC_AC97_CODEC - help - This option enables generic sound support for the first - AC97 unit of the SH7760. - -config SND_SIU_MIGOR - tristate "SIU sound support on Migo-R" - depends on SH_MIGOR && I2C - select SND_SOC_SH4_SIU - select SND_SOC_WM8978 - help - This option enables sound support for the SH7722 Migo-R board - endmenu diff --git a/sound/soc/sh/Makefile b/sound/soc/sh/Makefile index f6fd79948f6ae9..c308dda887e633 100644 --- a/sound/soc/sh/Makefile +++ b/sound/soc/sh/Makefile @@ -1,28 +1,12 @@ # SPDX-License-Identifier: GPL-2.0 -## DMA engines -snd-soc-dma-sh7760-objs := dma-sh7760.o -obj-$(CONFIG_SND_SOC_PCM_SH7760) += snd-soc-dma-sh7760.o ## audio units found on some SH-4 -snd-soc-hac-objs := hac.o -snd-soc-ssi-objs := ssi.o snd-soc-fsi-objs := fsi.o -snd-soc-siu-objs := siu_pcm.o siu_dai.o -obj-$(CONFIG_SND_SOC_SH4_HAC) += snd-soc-hac.o -obj-$(CONFIG_SND_SOC_SH4_SSI) += snd-soc-ssi.o obj-$(CONFIG_SND_SOC_SH4_FSI) += snd-soc-fsi.o -obj-$(CONFIG_SND_SOC_SH4_SIU) += snd-soc-siu.o ## audio units for R-Car obj-$(CONFIG_SND_SOC_RCAR) += rcar/ -## boards -snd-soc-sh7760-ac97-objs := sh7760-ac97.o -snd-soc-migor-objs := migor.o - -obj-$(CONFIG_SND_SH7760_AC97) += snd-soc-sh7760-ac97.o -obj-$(CONFIG_SND_SIU_MIGOR) += snd-soc-migor.o - # RZ/G2L snd-soc-rz-ssi-objs := rz-ssi.o obj-$(CONFIG_SND_SOC_RZ) += snd-soc-rz-ssi.o diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c deleted file mode 100644 index 121e48f984c50c..00000000000000 --- a/sound/soc/sh/dma-sh7760.c +++ /dev/null @@ -1,334 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// SH7760 ("camelot") DMABRG audio DMA unit support -// -// Copyright (C) 2007 Manuel Lauss -// -// The SH7760 DMABRG provides 4 dma channels (2x rec, 2x play), which -// trigger an interrupt when one half of the programmed transfer size -// has been xmitted. -// -// FIXME: little-endian only for now - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -/* registers and bits */ -#define BRGATXSAR 0x00 -#define BRGARXDAR 0x04 -#define BRGATXTCR 0x08 -#define BRGARXTCR 0x0C -#define BRGACR 0x10 -#define BRGATXTCNT 0x14 -#define BRGARXTCNT 0x18 - -#define ACR_RAR (1 << 18) -#define ACR_RDS (1 << 17) -#define ACR_RDE (1 << 16) -#define ACR_TAR (1 << 2) -#define ACR_TDS (1 << 1) -#define ACR_TDE (1 << 0) - -/* receiver/transmitter data alignment */ -#define ACR_RAM_NONE (0 << 24) -#define ACR_RAM_4BYTE (1 << 24) -#define ACR_RAM_2WORD (2 << 24) -#define ACR_TAM_NONE (0 << 8) -#define ACR_TAM_4BYTE (1 << 8) -#define ACR_TAM_2WORD (2 << 8) - - -struct camelot_pcm { - unsigned long mmio; /* DMABRG audio channel control reg MMIO */ - unsigned int txid; /* ID of first DMABRG IRQ for this unit */ - - struct snd_pcm_substream *tx_ss; - unsigned long tx_period_size; - unsigned int tx_period; - - struct snd_pcm_substream *rx_ss; - unsigned long rx_period_size; - unsigned int rx_period; - -} cam_pcm_data[2] = { - { - .mmio = 0xFE3C0040, - .txid = DMABRGIRQ_A0TXF, - }, - { - .mmio = 0xFE3C0060, - .txid = DMABRGIRQ_A1TXF, - }, -}; - -#define BRGREG(x) (*(unsigned long *)(cam->mmio + (x))) - -/* - * set a minimum of 16kb per period, to avoid interrupt-"storm" and - * resulting skipping. In general, the bigger the minimum size, the - * better for overall system performance. (The SH7760 is a puny CPU - * with a slow SDRAM interface and poor internal bus bandwidth, - * *especially* when the LCDC is active). The minimum for the DMAC - * is 8 bytes; 16kbytes are enough to get skip-free playback of a - * 44kHz/16bit/stereo MP3 on a lightly loaded system, and maintain - * reasonable responsiveness in MPlayer. - */ -#define DMABRG_PERIOD_MIN 16 * 1024 -#define DMABRG_PERIOD_MAX 0x03fffffc -#define DMABRG_PREALLOC_BUFFER 32 * 1024 -#define DMABRG_PREALLOC_BUFFER_MAX 32 * 1024 - -static const struct snd_pcm_hardware camelot_pcm_hardware = { - .info = (SNDRV_PCM_INFO_MMAP | - SNDRV_PCM_INFO_INTERLEAVED | - SNDRV_PCM_INFO_BLOCK_TRANSFER | - SNDRV_PCM_INFO_MMAP_VALID | - SNDRV_PCM_INFO_BATCH), - .buffer_bytes_max = DMABRG_PERIOD_MAX, - .period_bytes_min = DMABRG_PERIOD_MIN, - .period_bytes_max = DMABRG_PERIOD_MAX / 2, - .periods_min = 2, - .periods_max = 2, - .fifo_size = 128, -}; - -static void camelot_txdma(void *data) -{ - struct camelot_pcm *cam = data; - cam->tx_period ^= 1; - snd_pcm_period_elapsed(cam->tx_ss); -} - -static void camelot_rxdma(void *data) -{ - struct camelot_pcm *cam = data; - cam->rx_period ^= 1; - snd_pcm_period_elapsed(cam->rx_ss); -} - -static int camelot_pcm_open(struct snd_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1; - int ret, dmairq; - - snd_soc_set_runtime_hwparams(substream, &camelot_pcm_hardware); - - /* DMABRG buffer half/full events */ - dmairq = (recv) ? cam->txid + 2 : cam->txid; - if (recv) { - cam->rx_ss = substream; - ret = dmabrg_request_irq(dmairq, camelot_rxdma, cam); - if (unlikely(ret)) { - pr_debug("audio unit %d irqs already taken!\n", - asoc_rtd_to_cpu(rtd, 0)->id); - return -EBUSY; - } - (void)dmabrg_request_irq(dmairq + 1,camelot_rxdma, cam); - } else { - cam->tx_ss = substream; - ret = dmabrg_request_irq(dmairq, camelot_txdma, cam); - if (unlikely(ret)) { - pr_debug("audio unit %d irqs already taken!\n", - asoc_rtd_to_cpu(rtd, 0)->id); - return -EBUSY; - } - (void)dmabrg_request_irq(dmairq + 1, camelot_txdma, cam); - } - return 0; -} - -static int camelot_pcm_close(struct snd_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1; - int dmairq; - - dmairq = (recv) ? cam->txid + 2 : cam->txid; - - if (recv) - cam->rx_ss = NULL; - else - cam->tx_ss = NULL; - - dmabrg_free_irq(dmairq + 1); - dmabrg_free_irq(dmairq); - - return 0; -} - -static int camelot_hw_params(struct snd_soc_component *component, - struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *hw_params) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1; - - if (recv) { - cam->rx_period_size = params_period_bytes(hw_params); - cam->rx_period = 0; - } else { - cam->tx_period_size = params_period_bytes(hw_params); - cam->tx_period = 0; - } - return 0; -} - -static int camelot_prepare(struct snd_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - - pr_debug("PCM data: addr 0x%08lx len %d\n", - (u32)runtime->dma_addr, runtime->dma_bytes); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - BRGREG(BRGATXSAR) = (unsigned long)runtime->dma_area; - BRGREG(BRGATXTCR) = runtime->dma_bytes; - } else { - BRGREG(BRGARXDAR) = (unsigned long)runtime->dma_area; - BRGREG(BRGARXTCR) = runtime->dma_bytes; - } - - return 0; -} - -static inline void dmabrg_play_dma_start(struct camelot_pcm *cam) -{ - unsigned long acr = BRGREG(BRGACR) & ~(ACR_TDS | ACR_RDS); - /* start DMABRG engine: XFER start, auto-addr-reload */ - BRGREG(BRGACR) = acr | ACR_TDE | ACR_TAR | ACR_TAM_2WORD; -} - -static inline void dmabrg_play_dma_stop(struct camelot_pcm *cam) -{ - unsigned long acr = BRGREG(BRGACR) & ~(ACR_TDS | ACR_RDS); - /* forcibly terminate data transmission */ - BRGREG(BRGACR) = acr | ACR_TDS; -} - -static inline void dmabrg_rec_dma_start(struct camelot_pcm *cam) -{ - unsigned long acr = BRGREG(BRGACR) & ~(ACR_TDS | ACR_RDS); - /* start DMABRG engine: recv start, auto-reload */ - BRGREG(BRGACR) = acr | ACR_RDE | ACR_RAR | ACR_RAM_2WORD; -} - -static inline void dmabrg_rec_dma_stop(struct camelot_pcm *cam) -{ - unsigned long acr = BRGREG(BRGACR) & ~(ACR_TDS | ACR_RDS); - /* forcibly terminate data receiver */ - BRGREG(BRGACR) = acr | ACR_RDS; -} - -static int camelot_trigger(struct snd_soc_component *component, - struct snd_pcm_substream *substream, int cmd) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - if (recv) - dmabrg_rec_dma_start(cam); - else - dmabrg_play_dma_start(cam); - break; - case SNDRV_PCM_TRIGGER_STOP: - if (recv) - dmabrg_rec_dma_stop(cam); - else - dmabrg_play_dma_stop(cam); - break; - default: - return -EINVAL; - } - - return 0; -} - -static snd_pcm_uframes_t camelot_pos(struct snd_soc_component *component, - struct snd_pcm_substream *substream) -{ - struct snd_pcm_runtime *runtime = substream->runtime; - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct camelot_pcm *cam = &cam_pcm_data[asoc_rtd_to_cpu(rtd, 0)->id]; - int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1; - unsigned long pos; - - /* cannot use the DMABRG pointer register: under load, by the - * time ALSA comes around to read the register, it is already - * far ahead (or worse, already done with the fragment) of the - * position at the time the IRQ was triggered, which results in - * fast-playback sound in my test application (ScummVM) - */ - if (recv) - pos = cam->rx_period ? cam->rx_period_size : 0; - else - pos = cam->tx_period ? cam->tx_period_size : 0; - - return bytes_to_frames(runtime, pos); -} - -static int camelot_pcm_new(struct snd_soc_component *component, - struct snd_soc_pcm_runtime *rtd) -{ - struct snd_pcm *pcm = rtd->pcm; - - /* dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel - * in MMAP mode (i.e. aplay -M) - */ - snd_pcm_set_managed_buffer_all(pcm, - SNDRV_DMA_TYPE_CONTINUOUS, - NULL, - DMABRG_PREALLOC_BUFFER, DMABRG_PREALLOC_BUFFER_MAX); - - return 0; -} - -static const struct snd_soc_component_driver sh7760_soc_component = { - .open = camelot_pcm_open, - .close = camelot_pcm_close, - .hw_params = camelot_hw_params, - .prepare = camelot_prepare, - .trigger = camelot_trigger, - .pointer = camelot_pos, - .pcm_construct = camelot_pcm_new, -}; - -static int sh7760_soc_platform_probe(struct platform_device *pdev) -{ - return devm_snd_soc_register_component(&pdev->dev, &sh7760_soc_component, - NULL, 0); -} - -static struct platform_driver sh7760_pcm_driver = { - .driver = { - .name = "sh7760-pcm-audio", - }, - - .probe = sh7760_soc_platform_probe, -}; - -module_platform_driver(sh7760_pcm_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("SH7760 Audio DMA (DMABRG) driver"); -MODULE_AUTHOR("Manuel Lauss "); diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c index f3edc2e3d9d7c4..c599070f2210f4 100644 --- a/sound/soc/sh/fsi.c +++ b/sound/soc/sh/fsi.c @@ -1372,16 +1372,7 @@ static int fsi_dma_probe(struct fsi_priv *fsi, struct fsi_stream *io, struct dev { int is_play = fsi_stream_is_play(fsi, io); -#ifdef CONFIG_SUPERH - dma_cap_mask_t mask; - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - - io->chan = dma_request_channel(mask, shdma_chan_filter, - (void *)io->dma_id); -#else io->chan = dma_request_slave_channel(dev, is_play ? "tx" : "rx"); -#endif if (io->chan) { struct dma_slave_config cfg = {}; int ret; diff --git a/sound/soc/sh/hac.c b/sound/soc/sh/hac.c deleted file mode 100644 index 46d145cbaf2970..00000000000000 --- a/sound/soc/sh/hac.c +++ /dev/null @@ -1,345 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// Hitachi Audio Controller (AC97) support for SH7760/SH7780 -// -// Copyright (c) 2007 Manuel Lauss -// -// dont forget to set IPSEL/OMSEL register bits (in your board code) to -// enable HAC output pins! - -/* BIG FAT FIXME: although the SH7760 has 2 independent AC97 units, only - * the FIRST can be used since ASoC does not pass any information to the - * ac97_read/write() functions regarding WHICH unit to use. You'll have - * to edit the code a bit to use the other AC97 unit. --mlau - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* regs and bits */ -#define HACCR 0x08 -#define HACCSAR 0x20 -#define HACCSDR 0x24 -#define HACPCML 0x28 -#define HACPCMR 0x2C -#define HACTIER 0x50 -#define HACTSR 0x54 -#define HACRIER 0x58 -#define HACRSR 0x5C -#define HACACR 0x60 - -#define CR_CR (1 << 15) /* "codec-ready" indicator */ -#define CR_CDRT (1 << 11) /* cold reset */ -#define CR_WMRT (1 << 10) /* warm reset */ -#define CR_B9 (1 << 9) /* the mysterious "bit 9" */ -#define CR_ST (1 << 5) /* AC97 link start bit */ - -#define CSAR_RD (1 << 19) /* AC97 data read bit */ -#define CSAR_WR (0) - -#define TSR_CMDAMT (1 << 31) -#define TSR_CMDDMT (1 << 30) - -#define RSR_STARY (1 << 22) -#define RSR_STDRY (1 << 21) - -#define ACR_DMARX16 (1 << 30) -#define ACR_DMATX16 (1 << 29) -#define ACR_TX12ATOM (1 << 26) -#define ACR_DMARX20 ((1 << 24) | (1 << 22)) -#define ACR_DMATX20 ((1 << 23) | (1 << 21)) - -#define CSDR_SHIFT 4 -#define CSDR_MASK (0xffff << CSDR_SHIFT) -#define CSAR_SHIFT 12 -#define CSAR_MASK (0x7f << CSAR_SHIFT) - -#define AC97_WRITE_RETRY 1 -#define AC97_READ_RETRY 5 - -/* manual-suggested AC97 codec access timeouts (us) */ -#define TMO_E1 500 /* 21 < E1 < 1000 */ -#define TMO_E2 13 /* 13 < E2 */ -#define TMO_E3 21 /* 21 < E3 */ -#define TMO_E4 500 /* 21 < E4 < 1000 */ - -struct hac_priv { - unsigned long mmio; /* HAC base address */ -} hac_cpu_data[] = { -#if defined(CONFIG_CPU_SUBTYPE_SH7760) - { - .mmio = 0xFE240000, - }, - { - .mmio = 0xFE250000, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7780) - { - .mmio = 0xFFE40000, - }, -#else -#error "Unsupported SuperH SoC" -#endif -}; - -#define HACREG(reg) (*(unsigned long *)(hac->mmio + (reg))) - -/* - * AC97 read/write flow as outlined in the SH7760 manual (pages 903-906) - */ -static int hac_get_codec_data(struct hac_priv *hac, unsigned short r, - unsigned short *v) -{ - unsigned int to1, to2, i; - unsigned short adr; - - for (i = AC97_READ_RETRY; i; i--) { - *v = 0; - /* wait for HAC to receive something from the codec */ - for (to1 = TMO_E4; - to1 && !(HACREG(HACRSR) & RSR_STARY); - --to1) - udelay(1); - for (to2 = TMO_E4; - to2 && !(HACREG(HACRSR) & RSR_STDRY); - --to2) - udelay(1); - - if (!to1 && !to2) - return 0; /* codec comm is down */ - - adr = ((HACREG(HACCSAR) & CSAR_MASK) >> CSAR_SHIFT); - *v = ((HACREG(HACCSDR) & CSDR_MASK) >> CSDR_SHIFT); - - HACREG(HACRSR) &= ~(RSR_STDRY | RSR_STARY); - - if (r == adr) - break; - - /* manual says: wait at least 21 usec before retrying */ - udelay(21); - } - HACREG(HACRSR) &= ~(RSR_STDRY | RSR_STARY); - return i; -} - -static unsigned short hac_read_codec_aux(struct hac_priv *hac, - unsigned short reg) -{ - unsigned short val; - unsigned int i, to; - - for (i = AC97_READ_RETRY; i; i--) { - /* send_read_request */ - local_irq_disable(); - HACREG(HACTSR) &= ~(TSR_CMDAMT); - HACREG(HACCSAR) = (reg << CSAR_SHIFT) | CSAR_RD; - local_irq_enable(); - - for (to = TMO_E3; - to && !(HACREG(HACTSR) & TSR_CMDAMT); - --to) - udelay(1); - - HACREG(HACTSR) &= ~TSR_CMDAMT; - val = 0; - if (hac_get_codec_data(hac, reg, &val) != 0) - break; - } - - return i ? val : ~0; -} - -static void hac_ac97_write(struct snd_ac97 *ac97, unsigned short reg, - unsigned short val) -{ - int unit_id = 0 /* ac97->private_data */; - struct hac_priv *hac = &hac_cpu_data[unit_id]; - unsigned int i, to; - /* write_codec_aux */ - for (i = AC97_WRITE_RETRY; i; i--) { - /* send_write_request */ - local_irq_disable(); - HACREG(HACTSR) &= ~(TSR_CMDDMT | TSR_CMDAMT); - HACREG(HACCSDR) = (val << CSDR_SHIFT); - HACREG(HACCSAR) = (reg << CSAR_SHIFT) & (~CSAR_RD); - local_irq_enable(); - - /* poll-wait for CMDAMT and CMDDMT */ - for (to = TMO_E1; - to && !(HACREG(HACTSR) & (TSR_CMDAMT|TSR_CMDDMT)); - --to) - udelay(1); - - HACREG(HACTSR) &= ~(TSR_CMDAMT | TSR_CMDDMT); - if (to) - break; - /* timeout, try again */ - } -} - -static unsigned short hac_ac97_read(struct snd_ac97 *ac97, - unsigned short reg) -{ - int unit_id = 0 /* ac97->private_data */; - struct hac_priv *hac = &hac_cpu_data[unit_id]; - return hac_read_codec_aux(hac, reg); -} - -static void hac_ac97_warmrst(struct snd_ac97 *ac97) -{ - int unit_id = 0 /* ac97->private_data */; - struct hac_priv *hac = &hac_cpu_data[unit_id]; - unsigned int tmo; - - HACREG(HACCR) = CR_WMRT | CR_ST | CR_B9; - msleep(10); - HACREG(HACCR) = CR_ST | CR_B9; - for (tmo = 1000; (tmo > 0) && !(HACREG(HACCR) & CR_CR); tmo--) - udelay(1); - - if (!tmo) - printk(KERN_INFO "hac: reset: AC97 link down!\n"); - /* settings this bit lets us have a conversation with codec */ - HACREG(HACACR) |= ACR_TX12ATOM; -} - -static void hac_ac97_coldrst(struct snd_ac97 *ac97) -{ - int unit_id = 0 /* ac97->private_data */; - struct hac_priv *hac; - hac = &hac_cpu_data[unit_id]; - - HACREG(HACCR) = 0; - HACREG(HACCR) = CR_CDRT | CR_ST | CR_B9; - msleep(10); - hac_ac97_warmrst(ac97); -} - -static struct snd_ac97_bus_ops hac_ac97_ops = { - .read = hac_ac97_read, - .write = hac_ac97_write, - .reset = hac_ac97_coldrst, - .warm_reset = hac_ac97_warmrst, -}; - -static int hac_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct hac_priv *hac = &hac_cpu_data[dai->id]; - int d = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0 : 1; - - switch (params->msbits) { - case 16: - HACREG(HACACR) |= d ? ACR_DMARX16 : ACR_DMATX16; - HACREG(HACACR) &= d ? ~ACR_DMARX20 : ~ACR_DMATX20; - break; - case 20: - HACREG(HACACR) &= d ? ~ACR_DMARX16 : ~ACR_DMATX16; - HACREG(HACACR) |= d ? ACR_DMARX20 : ACR_DMATX20; - break; - default: - pr_debug("hac: invalid depth %d bit\n", params->msbits); - return -EINVAL; - break; - } - - return 0; -} - -#define AC97_RATES \ - SNDRV_PCM_RATE_8000_192000 - -#define AC97_FMTS \ - SNDRV_PCM_FMTBIT_S16_LE - -static const struct snd_soc_dai_ops hac_dai_ops = { - .hw_params = hac_hw_params, -}; - -static struct snd_soc_dai_driver sh4_hac_dai[] = { -{ - .name = "hac-dai.0", - .playback = { - .rates = AC97_RATES, - .formats = AC97_FMTS, - .channels_min = 2, - .channels_max = 2, - }, - .capture = { - .rates = AC97_RATES, - .formats = AC97_FMTS, - .channels_min = 2, - .channels_max = 2, - }, - .ops = &hac_dai_ops, -}, -#ifdef CONFIG_CPU_SUBTYPE_SH7760 -{ - .name = "hac-dai.1", - .id = 1, - .playback = { - .rates = AC97_RATES, - .formats = AC97_FMTS, - .channels_min = 2, - .channels_max = 2, - }, - .capture = { - .rates = AC97_RATES, - .formats = AC97_FMTS, - .channels_min = 2, - .channels_max = 2, - }, - .ops = &hac_dai_ops, - -}, -#endif -}; - -static const struct snd_soc_component_driver sh4_hac_component = { - .name = "sh4-hac", - .legacy_dai_naming = 1, -}; - -static int hac_soc_platform_probe(struct platform_device *pdev) -{ - int ret; - - ret = snd_soc_set_ac97_ops(&hac_ac97_ops); - if (ret != 0) - return ret; - - return devm_snd_soc_register_component(&pdev->dev, &sh4_hac_component, - sh4_hac_dai, ARRAY_SIZE(sh4_hac_dai)); -} - -static int hac_soc_platform_remove(struct platform_device *pdev) -{ - snd_soc_set_ac97_ops(NULL); - return 0; -} - -static struct platform_driver hac_pcm_driver = { - .driver = { - .name = "hac-pcm-audio", - }, - - .probe = hac_soc_platform_probe, - .remove = hac_soc_platform_remove, -}; - -module_platform_driver(hac_pcm_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("SuperH onchip HAC (AC97) audio driver"); -MODULE_AUTHOR("Manuel Lauss "); diff --git a/sound/soc/sh/migor.c b/sound/soc/sh/migor.c deleted file mode 100644 index 7082c12d3bf238..00000000000000 --- a/sound/soc/sh/migor.c +++ /dev/null @@ -1,205 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// ALSA SoC driver for Migo-R -// -// Copyright (C) 2009-2010 Guennadi Liakhovetski - -#include -#include -#include -#include - -#include - -#include - -#include -#include -#include - -#include "../codecs/wm8978.h" -#include "siu.h" - -/* Default 8000Hz sampling frequency */ -static unsigned long codec_freq = 8000 * 512; - -static unsigned int use_count; - -/* External clock, sourced from the codec at the SIUMCKB pin */ -static unsigned long siumckb_recalc(struct clk *clk) -{ - return codec_freq; -} - -static struct sh_clk_ops siumckb_clk_ops = { - .recalc = siumckb_recalc, -}; - -static struct clk siumckb_clk = { - .ops = &siumckb_clk_ops, - .rate = 0, /* initialised at run-time */ -}; - -static struct clk_lookup *siumckb_lookup; - -static int migor_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); - int ret; - unsigned int rate = params_rate(params); - - ret = snd_soc_dai_set_sysclk(codec_dai, WM8978_PLL, 13000000, - SND_SOC_CLOCK_IN); - if (ret < 0) - return ret; - - ret = snd_soc_dai_set_clkdiv(codec_dai, WM8978_OPCLKRATE, rate * 512); - if (ret < 0) - return ret; - - codec_freq = rate * 512; - /* - * This propagates the parent frequency change to children and - * recalculates the frequency table - */ - clk_set_rate(&siumckb_clk, codec_freq); - dev_dbg(codec_dai->dev, "%s: configure %luHz\n", __func__, codec_freq); - - ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), SIU_CLKB_EXT, - codec_freq / 2, SND_SOC_CLOCK_IN); - - if (!ret) - use_count++; - - return ret; -} - -static int migor_hw_free(struct snd_pcm_substream *substream) -{ - struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); - struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); - - if (use_count) { - use_count--; - - if (!use_count) - snd_soc_dai_set_sysclk(codec_dai, WM8978_PLL, 0, - SND_SOC_CLOCK_IN); - } else { - dev_dbg(codec_dai->dev, "Unbalanced hw_free!\n"); - } - - return 0; -} - -static const struct snd_soc_ops migor_dai_ops = { - .hw_params = migor_hw_params, - .hw_free = migor_hw_free, -}; - -static const struct snd_soc_dapm_widget migor_dapm_widgets[] = { - SND_SOC_DAPM_HP("Headphone", NULL), - SND_SOC_DAPM_MIC("Onboard Microphone", NULL), - SND_SOC_DAPM_MIC("External Microphone", NULL), -}; - -static const struct snd_soc_dapm_route audio_map[] = { - /* Headphone output connected to LHP/RHP, enable OUT4 for VMID */ - { "Headphone", NULL, "OUT4 VMID" }, - { "OUT4 VMID", NULL, "LHP" }, - { "OUT4 VMID", NULL, "RHP" }, - - /* On-board microphone */ - { "RMICN", NULL, "Mic Bias" }, - { "RMICP", NULL, "Mic Bias" }, - { "Mic Bias", NULL, "Onboard Microphone" }, - - /* External microphone */ - { "LMICN", NULL, "Mic Bias" }, - { "LMICP", NULL, "Mic Bias" }, - { "Mic Bias", NULL, "External Microphone" }, -}; - -/* migor digital audio interface glue - connects codec <--> CPU */ -SND_SOC_DAILINK_DEFS(wm8978, - DAILINK_COMP_ARRAY(COMP_CPU("siu-pcm-audio")), - DAILINK_COMP_ARRAY(COMP_CODEC("wm8978.0-001a", "wm8978-hifi")), - DAILINK_COMP_ARRAY(COMP_PLATFORM("siu-pcm-audio"))); - -static struct snd_soc_dai_link migor_dai = { - .name = "wm8978", - .stream_name = "WM8978", - .dai_fmt = SND_SOC_DAIFMT_NB_IF | SND_SOC_DAIFMT_I2S | - SND_SOC_DAIFMT_CBS_CFS, - .ops = &migor_dai_ops, - SND_SOC_DAILINK_REG(wm8978), -}; - -/* migor audio machine driver */ -static struct snd_soc_card snd_soc_migor = { - .name = "Migo-R", - .owner = THIS_MODULE, - .dai_link = &migor_dai, - .num_links = 1, - - .dapm_widgets = migor_dapm_widgets, - .num_dapm_widgets = ARRAY_SIZE(migor_dapm_widgets), - .dapm_routes = audio_map, - .num_dapm_routes = ARRAY_SIZE(audio_map), -}; - -static struct platform_device *migor_snd_device; - -static int __init migor_init(void) -{ - int ret; - - ret = clk_register(&siumckb_clk); - if (ret < 0) - return ret; - - siumckb_lookup = clkdev_create(&siumckb_clk, "siumckb_clk", NULL); - if (!siumckb_lookup) { - ret = -ENOMEM; - goto eclkdevalloc; - } - - /* Port number used on this machine: port B */ - migor_snd_device = platform_device_alloc("soc-audio", 1); - if (!migor_snd_device) { - ret = -ENOMEM; - goto epdevalloc; - } - - platform_set_drvdata(migor_snd_device, &snd_soc_migor); - - ret = platform_device_add(migor_snd_device); - if (ret) - goto epdevadd; - - return 0; - -epdevadd: - platform_device_put(migor_snd_device); -epdevalloc: - clkdev_drop(siumckb_lookup); -eclkdevalloc: - clk_unregister(&siumckb_clk); - return ret; -} - -static void __exit migor_exit(void) -{ - clkdev_drop(siumckb_lookup); - clk_unregister(&siumckb_clk); - platform_device_unregister(migor_snd_device); -} - -module_init(migor_init); -module_exit(migor_exit); - -MODULE_AUTHOR("Guennadi Liakhovetski "); -MODULE_DESCRIPTION("ALSA SoC Migor"); -MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/sh/sh7760-ac97.c b/sound/soc/sh/sh7760-ac97.c deleted file mode 100644 index d267243a159ba6..00000000000000 --- a/sound/soc/sh/sh7760-ac97.c +++ /dev/null @@ -1,72 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// Generic AC97 sound support for SH7760 -// -// (c) 2007 Manuel Lauss - -#include -#include -#include -#include -#include -#include -#include - -#define IPSEL 0xFE400034 - -SND_SOC_DAILINK_DEFS(ac97, - DAILINK_COMP_ARRAY(COMP_CPU("hac-dai.0")), /* HAC0 */ - DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")), - DAILINK_COMP_ARRAY(COMP_PLATFORM("sh7760-pcm-audio"))); - -static struct snd_soc_dai_link sh7760_ac97_dai = { - .name = "AC97", - .stream_name = "AC97 HiFi", - SND_SOC_DAILINK_REG(ac97), -}; - -static struct snd_soc_card sh7760_ac97_soc_machine = { - .name = "SH7760 AC97", - .owner = THIS_MODULE, - .dai_link = &sh7760_ac97_dai, - .num_links = 1, -}; - -static struct platform_device *sh7760_ac97_snd_device; - -static int __init sh7760_ac97_init(void) -{ - int ret; - unsigned short ipsel; - - /* enable both AC97 controllers in pinmux reg */ - ipsel = __raw_readw(IPSEL); - __raw_writew(ipsel | (3 << 10), IPSEL); - - ret = -ENOMEM; - sh7760_ac97_snd_device = platform_device_alloc("soc-audio", -1); - if (!sh7760_ac97_snd_device) - goto out; - - platform_set_drvdata(sh7760_ac97_snd_device, - &sh7760_ac97_soc_machine); - ret = platform_device_add(sh7760_ac97_snd_device); - - if (ret) - platform_device_put(sh7760_ac97_snd_device); - -out: - return ret; -} - -static void __exit sh7760_ac97_exit(void) -{ - platform_device_unregister(sh7760_ac97_snd_device); -} - -module_init(sh7760_ac97_init); -module_exit(sh7760_ac97_exit); - -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("Generic SH7760 AC97 sound machine"); -MODULE_AUTHOR("Manuel Lauss "); diff --git a/sound/soc/sh/siu.h b/sound/soc/sh/siu.h deleted file mode 100644 index a675c36fc9d956..00000000000000 --- a/sound/soc/sh/siu.h +++ /dev/null @@ -1,180 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// siu.h - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral. -// -// Copyright (C) 2009-2010 Guennadi Liakhovetski -// Copyright (C) 2006 Carlos Munoz - -#ifndef SIU_H -#define SIU_H - -/* Common kernel and user-space firmware-building defines and types */ - -#define YRAM0_SIZE (0x0040 / 4) /* 16 */ -#define YRAM1_SIZE (0x0080 / 4) /* 32 */ -#define YRAM2_SIZE (0x0040 / 4) /* 16 */ -#define YRAM3_SIZE (0x0080 / 4) /* 32 */ -#define YRAM4_SIZE (0x0080 / 4) /* 32 */ -#define YRAM_DEF_SIZE (YRAM0_SIZE + YRAM1_SIZE + YRAM2_SIZE + \ - YRAM3_SIZE + YRAM4_SIZE) -#define YRAM_FIR_SIZE (0x0400 / 4) /* 256 */ -#define YRAM_IIR_SIZE (0x0200 / 4) /* 128 */ - -#define XRAM0_SIZE (0x0400 / 4) /* 256 */ -#define XRAM1_SIZE (0x0200 / 4) /* 128 */ -#define XRAM2_SIZE (0x0200 / 4) /* 128 */ - -/* PRAM program array size */ -#define PRAM0_SIZE (0x0100 / 4) /* 64 */ -#define PRAM1_SIZE ((0x2000 - 0x0100) / 4) /* 1984 */ - -#include - -struct siu_spb_param { - __u32 ab1a; /* input FIFO address */ - __u32 ab0a; /* output FIFO address */ - __u32 dir; /* 0=the ather except CPUOUTPUT, 1=CPUINPUT */ - __u32 event; /* SPB program starting conditions */ - __u32 stfifo; /* STFIFO register setting value */ - __u32 trdat; /* TRDAT register setting value */ -}; - -struct siu_firmware { - __u32 yram_fir_coeff[YRAM_FIR_SIZE]; - __u32 pram0[PRAM0_SIZE]; - __u32 pram1[PRAM1_SIZE]; - __u32 yram0[YRAM0_SIZE]; - __u32 yram1[YRAM1_SIZE]; - __u32 yram2[YRAM2_SIZE]; - __u32 yram3[YRAM3_SIZE]; - __u32 yram4[YRAM4_SIZE]; - __u32 spbpar_num; - struct siu_spb_param spbpar[32]; -}; - -#ifdef __KERNEL__ - -#include -#include -#include -#include - -#include -#include -#include - -#define SIU_PERIOD_BYTES_MAX 8192 /* DMA transfer/period size */ -#define SIU_PERIOD_BYTES_MIN 256 /* DMA transfer/period size */ -#define SIU_PERIODS_MAX 64 /* Max periods in buffer */ -#define SIU_PERIODS_MIN 4 /* Min periods in buffer */ -#define SIU_BUFFER_BYTES_MAX (SIU_PERIOD_BYTES_MAX * SIU_PERIODS_MAX) - -/* SIU ports: only one can be used at a time */ -enum { - SIU_PORT_A, - SIU_PORT_B, - SIU_PORT_NUM, -}; - -/* SIU clock configuration */ -enum { - SIU_CLKA_PLL, - SIU_CLKA_EXT, - SIU_CLKB_PLL, - SIU_CLKB_EXT -}; - -struct device; -struct siu_info { - struct device *dev; - int port_id; - u32 __iomem *pram; - u32 __iomem *xram; - u32 __iomem *yram; - u32 __iomem *reg; - struct siu_firmware fw; -}; - -struct siu_stream { - struct work_struct work; - struct snd_pcm_substream *substream; - snd_pcm_format_t format; - size_t buf_bytes; - size_t period_bytes; - int cur_period; /* Period currently in dma */ - u32 volume; - snd_pcm_sframes_t xfer_cnt; /* Number of frames */ - u8 rw_flg; /* transfer status */ - /* DMA status */ - struct dma_chan *chan; /* DMA channel */ - struct dma_async_tx_descriptor *tx_desc; - dma_cookie_t cookie; - struct sh_dmae_slave param; -}; - -struct siu_port { - unsigned long play_cap; /* Used to track full duplex */ - struct snd_pcm *pcm; - struct siu_stream playback; - struct siu_stream capture; - u32 stfifo; /* STFIFO value from firmware */ - u32 trdat; /* TRDAT value from firmware */ -}; - -extern struct siu_port *siu_ports[SIU_PORT_NUM]; - -static inline struct siu_port *siu_port_info(struct snd_pcm_substream *substream) -{ - struct platform_device *pdev = - to_platform_device(substream->pcm->card->dev); - return siu_ports[pdev->id]; -} - -/* Register access */ -static inline void siu_write32(u32 __iomem *addr, u32 val) -{ - __raw_writel(val, addr); -} - -static inline u32 siu_read32(u32 __iomem *addr) -{ - return __raw_readl(addr); -} - -/* SIU registers */ -#define SIU_IFCTL (0x000 / sizeof(u32)) -#define SIU_SRCTL (0x004 / sizeof(u32)) -#define SIU_SFORM (0x008 / sizeof(u32)) -#define SIU_CKCTL (0x00c / sizeof(u32)) -#define SIU_TRDAT (0x010 / sizeof(u32)) -#define SIU_STFIFO (0x014 / sizeof(u32)) -#define SIU_DPAK (0x01c / sizeof(u32)) -#define SIU_CKREV (0x020 / sizeof(u32)) -#define SIU_EVNTC (0x028 / sizeof(u32)) -#define SIU_SBCTL (0x040 / sizeof(u32)) -#define SIU_SBPSET (0x044 / sizeof(u32)) -#define SIU_SBFSTS (0x068 / sizeof(u32)) -#define SIU_SBDVCA (0x06c / sizeof(u32)) -#define SIU_SBDVCB (0x070 / sizeof(u32)) -#define SIU_SBACTIV (0x074 / sizeof(u32)) -#define SIU_DMAIA (0x090 / sizeof(u32)) -#define SIU_DMAIB (0x094 / sizeof(u32)) -#define SIU_DMAOA (0x098 / sizeof(u32)) -#define SIU_DMAOB (0x09c / sizeof(u32)) -#define SIU_DMAML (0x0a0 / sizeof(u32)) -#define SIU_SPSTS (0x0cc / sizeof(u32)) -#define SIU_SPCTL (0x0d0 / sizeof(u32)) -#define SIU_BRGASEL (0x100 / sizeof(u32)) -#define SIU_BRRA (0x104 / sizeof(u32)) -#define SIU_BRGBSEL (0x108 / sizeof(u32)) -#define SIU_BRRB (0x10c / sizeof(u32)) - -extern const struct snd_soc_component_driver siu_component; -extern struct siu_info *siu_i2s_data; - -int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card); -void siu_free_port(struct siu_port *port_info); - -#endif - -#endif /* SIU_H */ diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c deleted file mode 100644 index f2a386fcd92e4d..00000000000000 --- a/sound/soc/sh/siu_dai.c +++ /dev/null @@ -1,799 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// siu_dai.c - ALSA SoC driver for Renesas SH7343, SH7722 SIU peripheral. -// -// Copyright (C) 2009-2010 Guennadi Liakhovetski -// Copyright (C) 2006 Carlos Munoz - -#include -#include -#include -#include -#include - -#include -#include - -#include -#include - -#include "siu.h" - -/* Board specifics */ -#if defined(CONFIG_CPU_SUBTYPE_SH7722) -# define SIU_MAX_VOLUME 0x1000 -#else -# define SIU_MAX_VOLUME 0x7fff -#endif - -#define PRAM_SIZE 0x2000 -#define XRAM_SIZE 0x800 -#define YRAM_SIZE 0x800 - -#define XRAM_OFFSET 0x4000 -#define YRAM_OFFSET 0x6000 -#define REG_OFFSET 0xc000 - -#define PLAYBACK_ENABLED 1 -#define CAPTURE_ENABLED 2 - -#define VOLUME_CAPTURE 0 -#define VOLUME_PLAYBACK 1 -#define DFLT_VOLUME_LEVEL 0x08000800 - -/* - * SPDIF is only available on port A and on some SIU implementations it is only - * available for input. Due to the lack of hardware to test it, SPDIF is left - * disabled in this driver version - */ -struct format_flag { - u32 i2s; - u32 pcm; - u32 spdif; - u32 mask; -}; - -struct port_flag { - struct format_flag playback; - struct format_flag capture; -}; - -struct siu_info *siu_i2s_data; - -static struct port_flag siu_flags[SIU_PORT_NUM] = { - [SIU_PORT_A] = { - .playback = { - .i2s = 0x50000000, - .pcm = 0x40000000, - .spdif = 0x80000000, /* not on all SIU versions */ - .mask = 0xd0000000, - }, - .capture = { - .i2s = 0x05000000, - .pcm = 0x04000000, - .spdif = 0x08000000, - .mask = 0x0d000000, - }, - }, - [SIU_PORT_B] = { - .playback = { - .i2s = 0x00500000, - .pcm = 0x00400000, - .spdif = 0, /* impossible - turn off */ - .mask = 0x00500000, - }, - .capture = { - .i2s = 0x00050000, - .pcm = 0x00040000, - .spdif = 0, /* impossible - turn off */ - .mask = 0x00050000, - }, - }, -}; - -static void siu_dai_start(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - - dev_dbg(port_info->pcm->card->dev, "%s\n", __func__); - - /* Issue software reset to siu */ - siu_write32(base + SIU_SRCTL, 0); - - /* Wait for the reset to take effect */ - udelay(1); - - port_info->stfifo = 0; - port_info->trdat = 0; - - /* portA, portB, SIU operate */ - siu_write32(base + SIU_SRCTL, 0x301); - - /* portA=256fs, portB=256fs */ - siu_write32(base + SIU_CKCTL, 0x40400000); - - /* portA's BRG does not divide SIUCKA */ - siu_write32(base + SIU_BRGASEL, 0); - siu_write32(base + SIU_BRRA, 0); - - /* portB's BRG divides SIUCKB by half */ - siu_write32(base + SIU_BRGBSEL, 1); - siu_write32(base + SIU_BRRB, 0); - - siu_write32(base + SIU_IFCTL, 0x44440000); - - /* portA: 32 bit/fs, master; portB: 32 bit/fs, master */ - siu_write32(base + SIU_SFORM, 0x0c0c0000); - - /* - * Volume levels: looks like the DSP firmware implements volume controls - * differently from what's described in the datasheet - */ - siu_write32(base + SIU_SBDVCA, port_info->playback.volume); - siu_write32(base + SIU_SBDVCB, port_info->capture.volume); -} - -static void siu_dai_stop(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - - /* SIU software reset */ - siu_write32(base + SIU_SRCTL, 0); -} - -static void siu_dai_spbAselect(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - struct siu_firmware *fw = &info->fw; - u32 *ydef = fw->yram0; - u32 idx; - - /* path A use */ - if (!info->port_id) - idx = 1; /* portA */ - else - idx = 2; /* portB */ - - ydef[0] = (fw->spbpar[idx].ab1a << 16) | - (fw->spbpar[idx].ab0a << 8) | - (fw->spbpar[idx].dir << 7) | 3; - ydef[1] = fw->yram0[1]; /* 0x03000300 */ - ydef[2] = (16 / 2) << 24; - ydef[3] = fw->yram0[3]; /* 0 */ - ydef[4] = fw->yram0[4]; /* 0 */ - ydef[7] = fw->spbpar[idx].event; - port_info->stfifo |= fw->spbpar[idx].stfifo; - port_info->trdat |= fw->spbpar[idx].trdat; -} - -static void siu_dai_spbBselect(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - struct siu_firmware *fw = &info->fw; - u32 *ydef = fw->yram0; - u32 idx; - - /* path B use */ - if (!info->port_id) - idx = 7; /* portA */ - else - idx = 8; /* portB */ - - ydef[5] = (fw->spbpar[idx].ab1a << 16) | - (fw->spbpar[idx].ab0a << 8) | 1; - ydef[6] = fw->spbpar[idx].event; - port_info->stfifo |= fw->spbpar[idx].stfifo; - port_info->trdat |= fw->spbpar[idx].trdat; -} - -static void siu_dai_open(struct siu_stream *siu_stream) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - u32 srctl, ifctl; - - srctl = siu_read32(base + SIU_SRCTL); - ifctl = siu_read32(base + SIU_IFCTL); - - switch (info->port_id) { - case SIU_PORT_A: - /* portA operates */ - srctl |= 0x200; - ifctl &= ~0xc2; - break; - case SIU_PORT_B: - /* portB operates */ - srctl |= 0x100; - ifctl &= ~0x31; - break; - } - - siu_write32(base + SIU_SRCTL, srctl); - /* Unmute and configure portA */ - siu_write32(base + SIU_IFCTL, ifctl); -} - -/* - * At the moment only fixed Left-upper, Left-lower, Right-upper, Right-lower - * packing is supported - */ -static void siu_dai_pcmdatapack(struct siu_stream *siu_stream) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - u32 dpak; - - dpak = siu_read32(base + SIU_DPAK); - - switch (info->port_id) { - case SIU_PORT_A: - dpak &= ~0xc0000000; - break; - case SIU_PORT_B: - dpak &= ~0x00c00000; - break; - } - - siu_write32(base + SIU_DPAK, dpak); -} - -static int siu_dai_spbstart(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_firmware *fw = &info->fw; - u32 *ydef = fw->yram0; - int cnt; - u32 __iomem *add; - u32 *ptr; - - /* Load SPB Program in PRAM */ - ptr = fw->pram0; - add = info->pram; - for (cnt = 0; cnt < PRAM0_SIZE; cnt++, add++, ptr++) - siu_write32(add, *ptr); - - ptr = fw->pram1; - add = info->pram + (0x0100 / sizeof(u32)); - for (cnt = 0; cnt < PRAM1_SIZE; cnt++, add++, ptr++) - siu_write32(add, *ptr); - - /* XRAM initialization */ - add = info->xram; - for (cnt = 0; cnt < XRAM0_SIZE + XRAM1_SIZE + XRAM2_SIZE; cnt++, add++) - siu_write32(add, 0); - - /* YRAM variable area initialization */ - add = info->yram; - for (cnt = 0; cnt < YRAM_DEF_SIZE; cnt++, add++) - siu_write32(add, ydef[cnt]); - - /* YRAM FIR coefficient area initialization */ - add = info->yram + (0x0200 / sizeof(u32)); - for (cnt = 0; cnt < YRAM_FIR_SIZE; cnt++, add++) - siu_write32(add, fw->yram_fir_coeff[cnt]); - - /* YRAM IIR coefficient area initialization */ - add = info->yram + (0x0600 / sizeof(u32)); - for (cnt = 0; cnt < YRAM_IIR_SIZE; cnt++, add++) - siu_write32(add, 0); - - siu_write32(base + SIU_TRDAT, port_info->trdat); - port_info->trdat = 0x0; - - - /* SPB start condition: software */ - siu_write32(base + SIU_SBACTIV, 0); - /* Start SPB */ - siu_write32(base + SIU_SBCTL, 0xc0000000); - /* Wait for program to halt */ - cnt = 0x10000; - while (--cnt && siu_read32(base + SIU_SBCTL) != 0x80000000) - cpu_relax(); - - if (!cnt) - return -EBUSY; - - /* SPB program start address setting */ - siu_write32(base + SIU_SBPSET, 0x00400000); - /* SPB hardware start(FIFOCTL source) */ - siu_write32(base + SIU_SBACTIV, 0xc0000000); - - return 0; -} - -static void siu_dai_spbstop(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - - siu_write32(base + SIU_SBACTIV, 0); - /* SPB stop */ - siu_write32(base + SIU_SBCTL, 0); - - port_info->stfifo = 0; -} - -/* API functions */ - -/* Playback and capture hardware properties are identical */ -static const struct snd_pcm_hardware siu_dai_pcm_hw = { - .info = SNDRV_PCM_INFO_INTERLEAVED, - .formats = SNDRV_PCM_FMTBIT_S16, - .rates = SNDRV_PCM_RATE_8000_48000, - .rate_min = 8000, - .rate_max = 48000, - .channels_min = 2, - .channels_max = 2, - .buffer_bytes_max = SIU_BUFFER_BYTES_MAX, - .period_bytes_min = SIU_PERIOD_BYTES_MIN, - .period_bytes_max = SIU_PERIOD_BYTES_MAX, - .periods_min = SIU_PERIODS_MIN, - .periods_max = SIU_PERIODS_MAX, -}; - -static int siu_dai_info_volume(struct snd_kcontrol *kctrl, - struct snd_ctl_elem_info *uinfo) -{ - struct siu_port *port_info = snd_kcontrol_chip(kctrl); - - dev_dbg(port_info->pcm->card->dev, "%s\n", __func__); - - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 2; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = SIU_MAX_VOLUME; - - return 0; -} - -static int siu_dai_get_volume(struct snd_kcontrol *kctrl, - struct snd_ctl_elem_value *ucontrol) -{ - struct siu_port *port_info = snd_kcontrol_chip(kctrl); - struct device *dev = port_info->pcm->card->dev; - u32 vol; - - dev_dbg(dev, "%s\n", __func__); - - switch (kctrl->private_value) { - case VOLUME_PLAYBACK: - /* Playback is always on port 0 */ - vol = port_info->playback.volume; - ucontrol->value.integer.value[0] = vol & 0xffff; - ucontrol->value.integer.value[1] = vol >> 16 & 0xffff; - break; - case VOLUME_CAPTURE: - /* Capture is always on port 1 */ - vol = port_info->capture.volume; - ucontrol->value.integer.value[0] = vol & 0xffff; - ucontrol->value.integer.value[1] = vol >> 16 & 0xffff; - break; - default: - dev_err(dev, "%s() invalid private_value=%ld\n", - __func__, kctrl->private_value); - return -EINVAL; - } - - return 0; -} - -static int siu_dai_put_volume(struct snd_kcontrol *kctrl, - struct snd_ctl_elem_value *ucontrol) -{ - struct siu_port *port_info = snd_kcontrol_chip(kctrl); - struct device *dev = port_info->pcm->card->dev; - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - u32 new_vol; - u32 cur_vol; - - dev_dbg(dev, "%s\n", __func__); - - if (ucontrol->value.integer.value[0] < 0 || - ucontrol->value.integer.value[0] > SIU_MAX_VOLUME || - ucontrol->value.integer.value[1] < 0 || - ucontrol->value.integer.value[1] > SIU_MAX_VOLUME) - return -EINVAL; - - new_vol = ucontrol->value.integer.value[0] | - ucontrol->value.integer.value[1] << 16; - - /* See comment above - DSP firmware implementation */ - switch (kctrl->private_value) { - case VOLUME_PLAYBACK: - /* Playback is always on port 0 */ - cur_vol = port_info->playback.volume; - siu_write32(base + SIU_SBDVCA, new_vol); - port_info->playback.volume = new_vol; - break; - case VOLUME_CAPTURE: - /* Capture is always on port 1 */ - cur_vol = port_info->capture.volume; - siu_write32(base + SIU_SBDVCB, new_vol); - port_info->capture.volume = new_vol; - break; - default: - dev_err(dev, "%s() invalid private_value=%ld\n", - __func__, kctrl->private_value); - return -EINVAL; - } - - if (cur_vol != new_vol) - return 1; - - return 0; -} - -static const struct snd_kcontrol_new playback_controls = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Playback Volume", - .index = 0, - .info = siu_dai_info_volume, - .get = siu_dai_get_volume, - .put = siu_dai_put_volume, - .private_value = VOLUME_PLAYBACK, -}; - -static const struct snd_kcontrol_new capture_controls = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "PCM Capture Volume", - .index = 0, - .info = siu_dai_info_volume, - .get = siu_dai_get_volume, - .put = siu_dai_put_volume, - .private_value = VOLUME_CAPTURE, -}; - -int siu_init_port(int port, struct siu_port **port_info, struct snd_card *card) -{ - struct device *dev = card->dev; - struct snd_kcontrol *kctrl; - int ret; - - *port_info = kzalloc(sizeof(**port_info), GFP_KERNEL); - if (!*port_info) - return -ENOMEM; - - dev_dbg(dev, "%s: port #%d@%p\n", __func__, port, *port_info); - - (*port_info)->playback.volume = DFLT_VOLUME_LEVEL; - (*port_info)->capture.volume = DFLT_VOLUME_LEVEL; - - /* - * Add mixer support. The SPB is used to change the volume. Both - * ports use the same SPB. Therefore, we only register one - * control instance since it will be used by both channels. - * In error case we continue without controls. - */ - kctrl = snd_ctl_new1(&playback_controls, *port_info); - ret = snd_ctl_add(card, kctrl); - if (ret < 0) - dev_err(dev, - "failed to add playback controls %p port=%d err=%d\n", - kctrl, port, ret); - - kctrl = snd_ctl_new1(&capture_controls, *port_info); - ret = snd_ctl_add(card, kctrl); - if (ret < 0) - dev_err(dev, - "failed to add capture controls %p port=%d err=%d\n", - kctrl, port, ret); - - return 0; -} - -void siu_free_port(struct siu_port *port_info) -{ - kfree(port_info); -} - -static int siu_dai_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct siu_info *info = snd_soc_dai_get_drvdata(dai); - struct snd_pcm_runtime *rt = substream->runtime; - struct siu_port *port_info = siu_port_info(substream); - int ret; - - dev_dbg(substream->pcm->card->dev, "%s: port=%d@%p\n", __func__, - info->port_id, port_info); - - snd_soc_set_runtime_hwparams(substream, &siu_dai_pcm_hw); - - ret = snd_pcm_hw_constraint_integer(rt, SNDRV_PCM_HW_PARAM_PERIODS); - if (unlikely(ret < 0)) - return ret; - - siu_dai_start(port_info); - - return 0; -} - -static void siu_dai_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct siu_info *info = snd_soc_dai_get_drvdata(dai); - struct siu_port *port_info = siu_port_info(substream); - - dev_dbg(substream->pcm->card->dev, "%s: port=%d@%p\n", __func__, - info->port_id, port_info); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - port_info->play_cap &= ~PLAYBACK_ENABLED; - else - port_info->play_cap &= ~CAPTURE_ENABLED; - - /* Stop the siu if the other stream is not using it */ - if (!port_info->play_cap) { - /* during stmread or stmwrite ? */ - if (WARN_ON(port_info->playback.rw_flg || port_info->capture.rw_flg)) - return; - siu_dai_spbstop(port_info); - siu_dai_stop(port_info); - } -} - -/* PCM part of siu_dai_playback_prepare() / siu_dai_capture_prepare() */ -static int siu_dai_prepare(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct siu_info *info = snd_soc_dai_get_drvdata(dai); - struct snd_pcm_runtime *rt = substream->runtime; - struct siu_port *port_info = siu_port_info(substream); - struct siu_stream *siu_stream; - int self, ret; - - dev_dbg(substream->pcm->card->dev, - "%s: port %d, active streams %lx, %d channels\n", - __func__, info->port_id, port_info->play_cap, rt->channels); - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - self = PLAYBACK_ENABLED; - siu_stream = &port_info->playback; - } else { - self = CAPTURE_ENABLED; - siu_stream = &port_info->capture; - } - - /* Set up the siu if not already done */ - if (!port_info->play_cap) { - siu_stream->rw_flg = 0; /* stream-data transfer flag */ - - siu_dai_spbAselect(port_info); - siu_dai_spbBselect(port_info); - - siu_dai_open(siu_stream); - - siu_dai_pcmdatapack(siu_stream); - - ret = siu_dai_spbstart(port_info); - if (ret < 0) - goto fail; - } else { - ret = 0; - } - - port_info->play_cap |= self; - -fail: - return ret; -} - -/* - * SIU can set bus format to I2S / PCM / SPDIF independently for playback and - * capture, however, the current API sets the bus format globally for a DAI. - */ -static int siu_dai_set_fmt(struct snd_soc_dai *dai, - unsigned int fmt) -{ - struct siu_info *info = snd_soc_dai_get_drvdata(dai); - u32 __iomem *base = info->reg; - u32 ifctl; - - dev_dbg(dai->dev, "%s: fmt 0x%x on port %d\n", - __func__, fmt, info->port_id); - - if (info->port_id < 0) - return -ENODEV; - - /* Here select between I2S / PCM / SPDIF */ - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - ifctl = siu_flags[info->port_id].playback.i2s | - siu_flags[info->port_id].capture.i2s; - break; - case SND_SOC_DAIFMT_LEFT_J: - ifctl = siu_flags[info->port_id].playback.pcm | - siu_flags[info->port_id].capture.pcm; - break; - /* SPDIF disabled - see comment at the top */ - default: - return -EINVAL; - } - - ifctl |= ~(siu_flags[info->port_id].playback.mask | - siu_flags[info->port_id].capture.mask) & - siu_read32(base + SIU_IFCTL); - siu_write32(base + SIU_IFCTL, ifctl); - - return 0; -} - -static int siu_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, - unsigned int freq, int dir) -{ - struct clk *siu_clk, *parent_clk; - char *siu_name, *parent_name; - int ret; - - if (dir != SND_SOC_CLOCK_IN) - return -EINVAL; - - dev_dbg(dai->dev, "%s: using clock %d\n", __func__, clk_id); - - switch (clk_id) { - case SIU_CLKA_PLL: - siu_name = "siua_clk"; - parent_name = "pll_clk"; - break; - case SIU_CLKA_EXT: - siu_name = "siua_clk"; - parent_name = "siumcka_clk"; - break; - case SIU_CLKB_PLL: - siu_name = "siub_clk"; - parent_name = "pll_clk"; - break; - case SIU_CLKB_EXT: - siu_name = "siub_clk"; - parent_name = "siumckb_clk"; - break; - default: - return -EINVAL; - } - - siu_clk = clk_get(dai->dev, siu_name); - if (IS_ERR(siu_clk)) { - dev_err(dai->dev, "%s: cannot get a SIU clock: %ld\n", __func__, - PTR_ERR(siu_clk)); - return PTR_ERR(siu_clk); - } - - parent_clk = clk_get(dai->dev, parent_name); - if (IS_ERR(parent_clk)) { - ret = PTR_ERR(parent_clk); - dev_err(dai->dev, "cannot get a SIU clock parent: %d\n", ret); - goto epclkget; - } - - ret = clk_set_parent(siu_clk, parent_clk); - if (ret < 0) { - dev_err(dai->dev, "cannot reparent the SIU clock: %d\n", ret); - goto eclksetp; - } - - ret = clk_set_rate(siu_clk, freq); - if (ret < 0) - dev_err(dai->dev, "cannot set SIU clock rate: %d\n", ret); - - /* TODO: when clkdev gets reference counting we'll move these to siu_dai_shutdown() */ -eclksetp: - clk_put(parent_clk); -epclkget: - clk_put(siu_clk); - - return ret; -} - -static const struct snd_soc_dai_ops siu_dai_ops = { - .startup = siu_dai_startup, - .shutdown = siu_dai_shutdown, - .prepare = siu_dai_prepare, - .set_sysclk = siu_dai_set_sysclk, - .set_fmt = siu_dai_set_fmt, -}; - -static struct snd_soc_dai_driver siu_i2s_dai = { - .name = "siu-i2s-dai", - .playback = { - .channels_min = 2, - .channels_max = 2, - .formats = SNDRV_PCM_FMTBIT_S16, - .rates = SNDRV_PCM_RATE_8000_48000, - }, - .capture = { - .channels_min = 2, - .channels_max = 2, - .formats = SNDRV_PCM_FMTBIT_S16, - .rates = SNDRV_PCM_RATE_8000_48000, - }, - .ops = &siu_dai_ops, -}; - -static int siu_probe(struct platform_device *pdev) -{ - const struct firmware *fw_entry; - struct resource *res, *region; - struct siu_info *info; - int ret; - - info = devm_kmalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); - if (!info) - return -ENOMEM; - siu_i2s_data = info; - info->dev = &pdev->dev; - - ret = request_firmware(&fw_entry, "siu_spb.bin", &pdev->dev); - if (ret) - return ret; - - /* - * Loaded firmware is "const" - read only, but we have to modify it in - * snd_siu_sh7343_spbAselect() and snd_siu_sh7343_spbBselect() - */ - memcpy(&info->fw, fw_entry->data, fw_entry->size); - - release_firmware(fw_entry); - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - region = devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name); - if (!region) { - dev_err(&pdev->dev, "SIU region already claimed\n"); - return -EBUSY; - } - - info->pram = devm_ioremap(&pdev->dev, res->start, PRAM_SIZE); - if (!info->pram) - return -ENOMEM; - info->xram = devm_ioremap(&pdev->dev, res->start + XRAM_OFFSET, - XRAM_SIZE); - if (!info->xram) - return -ENOMEM; - info->yram = devm_ioremap(&pdev->dev, res->start + YRAM_OFFSET, - YRAM_SIZE); - if (!info->yram) - return -ENOMEM; - info->reg = devm_ioremap(&pdev->dev, res->start + REG_OFFSET, - resource_size(res) - REG_OFFSET); - if (!info->reg) - return -ENOMEM; - - dev_set_drvdata(&pdev->dev, info); - - /* register using ARRAY version so we can keep dai name */ - ret = devm_snd_soc_register_component(&pdev->dev, &siu_component, - &siu_i2s_dai, 1); - if (ret < 0) - return ret; - - pm_runtime_enable(&pdev->dev); - - return 0; -} - -static int siu_remove(struct platform_device *pdev) -{ - pm_runtime_disable(&pdev->dev); - return 0; -} - -static struct platform_driver siu_driver = { - .driver = { - .name = "siu-pcm-audio", - }, - .probe = siu_probe, - .remove = siu_remove, -}; - -module_platform_driver(siu_driver); - -MODULE_AUTHOR("Carlos Munoz "); -MODULE_DESCRIPTION("ALSA SoC SH7722 SIU driver"); -MODULE_LICENSE("GPL"); diff --git a/sound/soc/sh/siu_pcm.c b/sound/soc/sh/siu_pcm.c deleted file mode 100644 index f15ff36e793455..00000000000000 --- a/sound/soc/sh/siu_pcm.c +++ /dev/null @@ -1,553 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// siu_pcm.c - ALSA driver for Renesas SH7343, SH7722 SIU peripheral. -// -// Copyright (C) 2009-2010 Guennadi Liakhovetski -// Copyright (C) 2006 Carlos Munoz - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -#include - -#include "siu.h" - -#define DRV_NAME "siu-i2s" -#define GET_MAX_PERIODS(buf_bytes, period_bytes) \ - ((buf_bytes) / (period_bytes)) -#define PERIOD_OFFSET(buf_addr, period_num, period_bytes) \ - ((buf_addr) + ((period_num) * (period_bytes))) - -#define RWF_STM_RD 0x01 /* Read in progress */ -#define RWF_STM_WT 0x02 /* Write in progress */ - -struct siu_port *siu_ports[SIU_PORT_NUM]; - -/* transfersize is number of u32 dma transfers per period */ -static int siu_pcm_stmwrite_stop(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_stream *siu_stream = &port_info->playback; - u32 stfifo; - - if (!siu_stream->rw_flg) - return -EPERM; - - /* output FIFO disable */ - stfifo = siu_read32(base + SIU_STFIFO); - siu_write32(base + SIU_STFIFO, stfifo & ~0x0c180c18); - pr_debug("%s: STFIFO %x -> %x\n", __func__, - stfifo, stfifo & ~0x0c180c18); - - /* during stmwrite clear */ - siu_stream->rw_flg = 0; - - return 0; -} - -static int siu_pcm_stmwrite_start(struct siu_port *port_info) -{ - struct siu_stream *siu_stream = &port_info->playback; - - if (siu_stream->rw_flg) - return -EPERM; - - /* Current period in buffer */ - port_info->playback.cur_period = 0; - - /* during stmwrite flag set */ - siu_stream->rw_flg = RWF_STM_WT; - - /* DMA transfer start */ - queue_work(system_highpri_wq, &siu_stream->work); - - return 0; -} - -static void siu_dma_tx_complete(void *arg) -{ - struct siu_stream *siu_stream = arg; - - if (!siu_stream->rw_flg) - return; - - /* Update completed period count */ - if (++siu_stream->cur_period >= - GET_MAX_PERIODS(siu_stream->buf_bytes, - siu_stream->period_bytes)) - siu_stream->cur_period = 0; - - pr_debug("%s: done period #%d (%u/%u bytes), cookie %d\n", - __func__, siu_stream->cur_period, - siu_stream->cur_period * siu_stream->period_bytes, - siu_stream->buf_bytes, siu_stream->cookie); - - queue_work(system_highpri_wq, &siu_stream->work); - - /* Notify alsa: a period is done */ - snd_pcm_period_elapsed(siu_stream->substream); -} - -static int siu_pcm_wr_set(struct siu_port *port_info, - dma_addr_t buff, u32 size) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_stream *siu_stream = &port_info->playback; - struct snd_pcm_substream *substream = siu_stream->substream; - struct device *dev = substream->pcm->card->dev; - struct dma_async_tx_descriptor *desc; - dma_cookie_t cookie; - struct scatterlist sg; - u32 stfifo; - - sg_init_table(&sg, 1); - sg_set_page(&sg, pfn_to_page(PFN_DOWN(buff)), - size, offset_in_page(buff)); - sg_dma_len(&sg) = size; - sg_dma_address(&sg) = buff; - - desc = dmaengine_prep_slave_sg(siu_stream->chan, - &sg, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); - if (!desc) { - dev_err(dev, "Failed to allocate a dma descriptor\n"); - return -ENOMEM; - } - - desc->callback = siu_dma_tx_complete; - desc->callback_param = siu_stream; - cookie = dmaengine_submit(desc); - if (cookie < 0) { - dev_err(dev, "Failed to submit a dma transfer\n"); - return cookie; - } - - siu_stream->tx_desc = desc; - siu_stream->cookie = cookie; - - dma_async_issue_pending(siu_stream->chan); - - /* only output FIFO enable */ - stfifo = siu_read32(base + SIU_STFIFO); - siu_write32(base + SIU_STFIFO, stfifo | (port_info->stfifo & 0x0c180c18)); - dev_dbg(dev, "%s: STFIFO %x -> %x\n", __func__, - stfifo, stfifo | (port_info->stfifo & 0x0c180c18)); - - return 0; -} - -static int siu_pcm_rd_set(struct siu_port *port_info, - dma_addr_t buff, size_t size) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_stream *siu_stream = &port_info->capture; - struct snd_pcm_substream *substream = siu_stream->substream; - struct device *dev = substream->pcm->card->dev; - struct dma_async_tx_descriptor *desc; - dma_cookie_t cookie; - struct scatterlist sg; - u32 stfifo; - - dev_dbg(dev, "%s: %u@%llx\n", __func__, size, (unsigned long long)buff); - - sg_init_table(&sg, 1); - sg_set_page(&sg, pfn_to_page(PFN_DOWN(buff)), - size, offset_in_page(buff)); - sg_dma_len(&sg) = size; - sg_dma_address(&sg) = buff; - - desc = dmaengine_prep_slave_sg(siu_stream->chan, - &sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); - if (!desc) { - dev_err(dev, "Failed to allocate dma descriptor\n"); - return -ENOMEM; - } - - desc->callback = siu_dma_tx_complete; - desc->callback_param = siu_stream; - cookie = dmaengine_submit(desc); - if (cookie < 0) { - dev_err(dev, "Failed to submit dma descriptor\n"); - return cookie; - } - - siu_stream->tx_desc = desc; - siu_stream->cookie = cookie; - - dma_async_issue_pending(siu_stream->chan); - - /* only input FIFO enable */ - stfifo = siu_read32(base + SIU_STFIFO); - siu_write32(base + SIU_STFIFO, siu_read32(base + SIU_STFIFO) | - (port_info->stfifo & 0x13071307)); - dev_dbg(dev, "%s: STFIFO %x -> %x\n", __func__, - stfifo, stfifo | (port_info->stfifo & 0x13071307)); - - return 0; -} - -static void siu_io_work(struct work_struct *work) -{ - struct siu_stream *siu_stream = container_of(work, struct siu_stream, - work); - struct snd_pcm_substream *substream = siu_stream->substream; - struct device *dev = substream->pcm->card->dev; - struct snd_pcm_runtime *rt = substream->runtime; - struct siu_port *port_info = siu_port_info(substream); - - dev_dbg(dev, "%s: flags %x\n", __func__, siu_stream->rw_flg); - - if (!siu_stream->rw_flg) { - dev_dbg(dev, "%s: stream inactive\n", __func__); - return; - } - - if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { - dma_addr_t buff; - size_t count; - - buff = (dma_addr_t)PERIOD_OFFSET(rt->dma_addr, - siu_stream->cur_period, - siu_stream->period_bytes); - count = siu_stream->period_bytes; - - /* DMA transfer start */ - siu_pcm_rd_set(port_info, buff, count); - } else { - siu_pcm_wr_set(port_info, - (dma_addr_t)PERIOD_OFFSET(rt->dma_addr, - siu_stream->cur_period, - siu_stream->period_bytes), - siu_stream->period_bytes); - } -} - -/* Capture */ -static int siu_pcm_stmread_start(struct siu_port *port_info) -{ - struct siu_stream *siu_stream = &port_info->capture; - - if (siu_stream->xfer_cnt > 0x1000000) - return -EINVAL; - if (siu_stream->rw_flg) - return -EPERM; - - /* Current period in buffer */ - siu_stream->cur_period = 0; - - /* during stmread flag set */ - siu_stream->rw_flg = RWF_STM_RD; - - queue_work(system_highpri_wq, &siu_stream->work); - - return 0; -} - -static int siu_pcm_stmread_stop(struct siu_port *port_info) -{ - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_stream *siu_stream = &port_info->capture; - struct device *dev = siu_stream->substream->pcm->card->dev; - u32 stfifo; - - if (!siu_stream->rw_flg) - return -EPERM; - - /* input FIFO disable */ - stfifo = siu_read32(base + SIU_STFIFO); - siu_write32(base + SIU_STFIFO, stfifo & ~0x13071307); - dev_dbg(dev, "%s: STFIFO %x -> %x\n", __func__, - stfifo, stfifo & ~0x13071307); - - /* during stmread flag clear */ - siu_stream->rw_flg = 0; - - return 0; -} - -static bool filter(struct dma_chan *chan, void *secondary) -{ - struct sh_dmae_slave *param = secondary; - - pr_debug("%s: secondary ID %d\n", __func__, param->shdma_slave.slave_id); - - chan->private = ¶m->shdma_slave; - return true; -} - -static int siu_pcm_open(struct snd_soc_component *component, - struct snd_pcm_substream *ss) -{ - /* Playback / Capture */ - struct siu_platform *pdata = component->dev->platform_data; - struct siu_info *info = siu_i2s_data; - struct siu_port *port_info = siu_port_info(ss); - struct siu_stream *siu_stream; - u32 port = info->port_id; - struct device *dev = ss->pcm->card->dev; - dma_cap_mask_t mask; - struct sh_dmae_slave *param; - - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - - dev_dbg(dev, "%s, port=%d@%p\n", __func__, port, port_info); - - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) { - siu_stream = &port_info->playback; - param = &siu_stream->param; - param->shdma_slave.slave_id = port ? pdata->dma_slave_tx_b : - pdata->dma_slave_tx_a; - } else { - siu_stream = &port_info->capture; - param = &siu_stream->param; - param->shdma_slave.slave_id = port ? pdata->dma_slave_rx_b : - pdata->dma_slave_rx_a; - } - - /* Get DMA channel */ - siu_stream->chan = dma_request_channel(mask, filter, param); - if (!siu_stream->chan) { - dev_err(dev, "DMA channel allocation failed!\n"); - return -EBUSY; - } - - siu_stream->substream = ss; - - return 0; -} - -static int siu_pcm_close(struct snd_soc_component *component, - struct snd_pcm_substream *ss) -{ - struct siu_info *info = siu_i2s_data; - struct device *dev = ss->pcm->card->dev; - struct siu_port *port_info = siu_port_info(ss); - struct siu_stream *siu_stream; - - dev_dbg(dev, "%s: port=%d\n", __func__, info->port_id); - - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) - siu_stream = &port_info->playback; - else - siu_stream = &port_info->capture; - - dma_release_channel(siu_stream->chan); - siu_stream->chan = NULL; - - siu_stream->substream = NULL; - - return 0; -} - -static int siu_pcm_prepare(struct snd_soc_component *component, - struct snd_pcm_substream *ss) -{ - struct siu_info *info = siu_i2s_data; - struct siu_port *port_info = siu_port_info(ss); - struct device *dev = ss->pcm->card->dev; - struct snd_pcm_runtime *rt; - struct siu_stream *siu_stream; - snd_pcm_sframes_t xfer_cnt; - - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) - siu_stream = &port_info->playback; - else - siu_stream = &port_info->capture; - - rt = siu_stream->substream->runtime; - - siu_stream->buf_bytes = snd_pcm_lib_buffer_bytes(ss); - siu_stream->period_bytes = snd_pcm_lib_period_bytes(ss); - - dev_dbg(dev, "%s: port=%d, %d channels, period=%u bytes\n", __func__, - info->port_id, rt->channels, siu_stream->period_bytes); - - /* We only support buffers that are multiples of the period */ - if (siu_stream->buf_bytes % siu_stream->period_bytes) { - dev_err(dev, "%s() - buffer=%d not multiple of period=%d\n", - __func__, siu_stream->buf_bytes, - siu_stream->period_bytes); - return -EINVAL; - } - - xfer_cnt = bytes_to_frames(rt, siu_stream->period_bytes); - if (!xfer_cnt || xfer_cnt > 0x1000000) - return -EINVAL; - - siu_stream->format = rt->format; - siu_stream->xfer_cnt = xfer_cnt; - - dev_dbg(dev, "port=%d buf=%lx buf_bytes=%d period_bytes=%d " - "format=%d channels=%d xfer_cnt=%d\n", info->port_id, - (unsigned long)rt->dma_addr, siu_stream->buf_bytes, - siu_stream->period_bytes, - siu_stream->format, rt->channels, (int)xfer_cnt); - - return 0; -} - -static int siu_pcm_trigger(struct snd_soc_component *component, - struct snd_pcm_substream *ss, int cmd) -{ - struct siu_info *info = siu_i2s_data; - struct device *dev = ss->pcm->card->dev; - struct siu_port *port_info = siu_port_info(ss); - int ret; - - dev_dbg(dev, "%s: port=%d@%p, cmd=%d\n", __func__, - info->port_id, port_info, cmd); - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) - ret = siu_pcm_stmwrite_start(port_info); - else - ret = siu_pcm_stmread_start(port_info); - - if (ret < 0) - dev_warn(dev, "%s: start failed on port=%d\n", - __func__, info->port_id); - - break; - case SNDRV_PCM_TRIGGER_STOP: - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) - siu_pcm_stmwrite_stop(port_info); - else - siu_pcm_stmread_stop(port_info); - ret = 0; - - break; - default: - dev_err(dev, "%s() unsupported cmd=%d\n", __func__, cmd); - ret = -EINVAL; - } - - return ret; -} - -/* - * So far only resolution of one period is supported, subject to extending the - * dmangine API - */ -static snd_pcm_uframes_t -siu_pcm_pointer_dma(struct snd_soc_component *component, - struct snd_pcm_substream *ss) -{ - struct device *dev = ss->pcm->card->dev; - struct siu_info *info = siu_i2s_data; - u32 __iomem *base = info->reg; - struct siu_port *port_info = siu_port_info(ss); - struct snd_pcm_runtime *rt = ss->runtime; - size_t ptr; - struct siu_stream *siu_stream; - - if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) - siu_stream = &port_info->playback; - else - siu_stream = &port_info->capture; - - /* - * ptr is the offset into the buffer where the dma is currently at. We - * check if the dma buffer has just wrapped. - */ - ptr = PERIOD_OFFSET(rt->dma_addr, - siu_stream->cur_period, - siu_stream->period_bytes) - rt->dma_addr; - - dev_dbg(dev, - "%s: port=%d, events %x, FSTS %x, xferred %u/%u, cookie %d\n", - __func__, info->port_id, siu_read32(base + SIU_EVNTC), - siu_read32(base + SIU_SBFSTS), ptr, siu_stream->buf_bytes, - siu_stream->cookie); - - if (ptr >= siu_stream->buf_bytes) - ptr = 0; - - return bytes_to_frames(ss->runtime, ptr); -} - -static int siu_pcm_new(struct snd_soc_component *component, - struct snd_soc_pcm_runtime *rtd) -{ - /* card->dev == socdev->dev, see snd_soc_new_pcms() */ - struct snd_card *card = rtd->card->snd_card; - struct snd_pcm *pcm = rtd->pcm; - struct siu_info *info = siu_i2s_data; - struct platform_device *pdev = to_platform_device(card->dev); - int ret; - int i; - - /* pdev->id selects between SIUA and SIUB */ - if (pdev->id < 0 || pdev->id >= SIU_PORT_NUM) - return -EINVAL; - - info->port_id = pdev->id; - - /* - * While the siu has 2 ports, only one port can be on at a time (only 1 - * SPB). So far all the boards using the siu had only one of the ports - * wired to a codec. To simplify things, we only register one port with - * alsa. In case both ports are needed, it should be changed here - */ - for (i = pdev->id; i < pdev->id + 1; i++) { - struct siu_port **port_info = &siu_ports[i]; - - ret = siu_init_port(i, port_info, card); - if (ret < 0) - return ret; - - snd_pcm_set_managed_buffer_all(pcm, - SNDRV_DMA_TYPE_DEV, card->dev, - SIU_BUFFER_BYTES_MAX, SIU_BUFFER_BYTES_MAX); - - (*port_info)->pcm = pcm; - - /* IO works */ - INIT_WORK(&(*port_info)->playback.work, siu_io_work); - INIT_WORK(&(*port_info)->capture.work, siu_io_work); - } - - dev_info(card->dev, "SuperH SIU driver initialized.\n"); - return 0; -} - -static void siu_pcm_free(struct snd_soc_component *component, - struct snd_pcm *pcm) -{ - struct platform_device *pdev = to_platform_device(pcm->card->dev); - struct siu_port *port_info = siu_ports[pdev->id]; - - cancel_work_sync(&port_info->capture.work); - cancel_work_sync(&port_info->playback.work); - - siu_free_port(port_info); - - dev_dbg(pcm->card->dev, "%s\n", __func__); -} - -const struct snd_soc_component_driver siu_component = { - .name = DRV_NAME, - .open = siu_pcm_open, - .close = siu_pcm_close, - .prepare = siu_pcm_prepare, - .trigger = siu_pcm_trigger, - .pointer = siu_pcm_pointer_dma, - .pcm_construct = siu_pcm_new, - .pcm_destruct = siu_pcm_free, - .legacy_dai_naming = 1, -}; -EXPORT_SYMBOL_GPL(siu_component); diff --git a/sound/soc/sh/ssi.c b/sound/soc/sh/ssi.c deleted file mode 100644 index 96cf523c227343..00000000000000 --- a/sound/soc/sh/ssi.c +++ /dev/null @@ -1,403 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -// -// Serial Sound Interface (I2S) support for SH7760/SH7780 -// -// Copyright (c) 2007 Manuel Lauss -// -// dont forget to set IPSEL/OMSEL register bits (in your board code) to -// enable SSI output pins! - -/* - * LIMITATIONS: - * The SSI unit has only one physical data line, so full duplex is - * impossible. This can be remedied on the SH7760 by using the - * other SSI unit for recording; however the SH7780 has only 1 SSI - * unit, and its pins are shared with the AC97 unit, among others. - * - * FEATURES: - * The SSI features "compressed mode": in this mode it continuously - * streams PCM data over the I2S lines and uses LRCK as a handshake - * signal. Can be used to send compressed data (AC3/DTS) to a DSP. - * The number of bits sent over the wire in a frame can be adjusted - * and can be independent from the actual sample bit depth. This is - * useful to support TDM mode codecs like the AD1939 which have a - * fixed TDM slot size, regardless of sample resolution. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define SSICR 0x00 -#define SSISR 0x04 - -#define CR_DMAEN (1 << 28) -#define CR_CHNL_SHIFT 22 -#define CR_CHNL_MASK (3 << CR_CHNL_SHIFT) -#define CR_DWL_SHIFT 19 -#define CR_DWL_MASK (7 << CR_DWL_SHIFT) -#define CR_SWL_SHIFT 16 -#define CR_SWL_MASK (7 << CR_SWL_SHIFT) -#define CR_SCK_MASTER (1 << 15) /* bitclock master bit */ -#define CR_SWS_MASTER (1 << 14) /* wordselect master bit */ -#define CR_SCKP (1 << 13) /* I2Sclock polarity */ -#define CR_SWSP (1 << 12) /* LRCK polarity */ -#define CR_SPDP (1 << 11) -#define CR_SDTA (1 << 10) /* i2s alignment (msb/lsb) */ -#define CR_PDTA (1 << 9) /* fifo data alignment */ -#define CR_DEL (1 << 8) /* delay data by 1 i2sclk */ -#define CR_BREN (1 << 7) /* clock gating in burst mode */ -#define CR_CKDIV_SHIFT 4 -#define CR_CKDIV_MASK (7 << CR_CKDIV_SHIFT) /* bitclock divider */ -#define CR_MUTE (1 << 3) /* SSI mute */ -#define CR_CPEN (1 << 2) /* compressed mode */ -#define CR_TRMD (1 << 1) /* transmit/receive select */ -#define CR_EN (1 << 0) /* enable SSI */ - -#define SSIREG(reg) (*(unsigned long *)(ssi->mmio + (reg))) - -struct ssi_priv { - unsigned long mmio; - unsigned long sysclk; - int inuse; -} ssi_cpu_data[] = { -#if defined(CONFIG_CPU_SUBTYPE_SH7760) - { - .mmio = 0xFE680000, - }, - { - .mmio = 0xFE690000, - }, -#elif defined(CONFIG_CPU_SUBTYPE_SH7780) - { - .mmio = 0xFFE70000, - }, -#else -#error "Unsupported SuperH SoC" -#endif -}; - -/* - * track usage of the SSI; it is simplex-only so prevent attempts of - * concurrent playback + capture. FIXME: any locking required? - */ -static int ssi_startup(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - if (ssi->inuse) { - pr_debug("ssi: already in use!\n"); - return -EBUSY; - } else - ssi->inuse = 1; - return 0; -} - -static void ssi_shutdown(struct snd_pcm_substream *substream, - struct snd_soc_dai *dai) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - - ssi->inuse = 0; -} - -static int ssi_trigger(struct snd_pcm_substream *substream, int cmd, - struct snd_soc_dai *dai) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - - switch (cmd) { - case SNDRV_PCM_TRIGGER_START: - SSIREG(SSICR) |= CR_DMAEN | CR_EN; - break; - case SNDRV_PCM_TRIGGER_STOP: - SSIREG(SSICR) &= ~(CR_DMAEN | CR_EN); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int ssi_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - unsigned long ssicr = SSIREG(SSICR); - unsigned int bits, channels, swl, recv, i; - - channels = params_channels(params); - bits = params->msbits; - recv = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ? 0 : 1; - - pr_debug("ssi_hw_params() enter\nssicr was %08lx\n", ssicr); - pr_debug("bits: %u channels: %u\n", bits, channels); - - ssicr &= ~(CR_TRMD | CR_CHNL_MASK | CR_DWL_MASK | CR_PDTA | - CR_SWL_MASK); - - /* direction (send/receive) */ - if (!recv) - ssicr |= CR_TRMD; /* transmit */ - - /* channels */ - if ((channels < 2) || (channels > 8) || (channels & 1)) { - pr_debug("ssi: invalid number of channels\n"); - return -EINVAL; - } - ssicr |= ((channels >> 1) - 1) << CR_CHNL_SHIFT; - - /* DATA WORD LENGTH (DWL): databits in audio sample */ - i = 0; - switch (bits) { - case 32: ++i; - case 24: ++i; - case 22: ++i; - case 20: ++i; - case 18: ++i; - case 16: ++i; - ssicr |= i << CR_DWL_SHIFT; - case 8: break; - default: - pr_debug("ssi: invalid sample width\n"); - return -EINVAL; - } - - /* - * SYSTEM WORD LENGTH: size in bits of half a frame over the I2S - * wires. This is usually bits_per_sample x channels/2; i.e. in - * Stereo mode the SWL equals DWL. SWL can be bigger than the - * product of (channels_per_slot x samplebits), e.g. for codecs - * like the AD1939 which only accept 32bit wide TDM slots. For - * "standard" I2S operation we set SWL = chans / 2 * DWL here. - * Waiting for ASoC to get TDM support ;-) - */ - if ((bits > 16) && (bits <= 24)) { - bits = 24; /* these are padded by the SSI */ - /*ssicr |= CR_PDTA;*/ /* cpu/data endianness ? */ - } - i = 0; - swl = (bits * channels) / 2; - switch (swl) { - case 256: ++i; - case 128: ++i; - case 64: ++i; - case 48: ++i; - case 32: ++i; - case 16: ++i; - ssicr |= i << CR_SWL_SHIFT; - case 8: break; - default: - pr_debug("ssi: invalid system word length computed\n"); - return -EINVAL; - } - - SSIREG(SSICR) = ssicr; - - pr_debug("ssi_hw_params() leave\nssicr is now %08lx\n", ssicr); - return 0; -} - -static int ssi_set_sysclk(struct snd_soc_dai *cpu_dai, int clk_id, - unsigned int freq, int dir) -{ - struct ssi_priv *ssi = &ssi_cpu_data[cpu_dai->id]; - - ssi->sysclk = freq; - - return 0; -} - -/* - * This divider is used to generate the SSI_SCK (I2S bitclock) from the - * clock at the HAC_BIT_CLK ("oversampling clock") pin. - */ -static int ssi_set_clkdiv(struct snd_soc_dai *dai, int did, int div) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - unsigned long ssicr; - int i; - - i = 0; - ssicr = SSIREG(SSICR) & ~CR_CKDIV_MASK; - switch (div) { - case 16: ++i; - case 8: ++i; - case 4: ++i; - case 2: ++i; - SSIREG(SSICR) = ssicr | (i << CR_CKDIV_SHIFT); - case 1: break; - default: - pr_debug("ssi: invalid sck divider %d\n", div); - return -EINVAL; - } - - return 0; -} - -static int ssi_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) -{ - struct ssi_priv *ssi = &ssi_cpu_data[dai->id]; - unsigned long ssicr = SSIREG(SSICR); - - pr_debug("ssi_set_fmt()\nssicr was 0x%08lx\n", ssicr); - - ssicr &= ~(CR_DEL | CR_PDTA | CR_BREN | CR_SWSP | CR_SCKP | - CR_SWS_MASTER | CR_SCK_MASTER); - - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - break; - case SND_SOC_DAIFMT_RIGHT_J: - ssicr |= CR_DEL | CR_PDTA; - break; - case SND_SOC_DAIFMT_LEFT_J: - ssicr |= CR_DEL; - break; - default: - pr_debug("ssi: unsupported format\n"); - return -EINVAL; - } - - switch (fmt & SND_SOC_DAIFMT_CLOCK_MASK) { - case SND_SOC_DAIFMT_CONT: - break; - case SND_SOC_DAIFMT_GATED: - ssicr |= CR_BREN; - break; - } - - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - ssicr |= CR_SCKP; /* sample data at low clkedge */ - break; - case SND_SOC_DAIFMT_NB_IF: - ssicr |= CR_SCKP | CR_SWSP; - break; - case SND_SOC_DAIFMT_IB_NF: - break; - case SND_SOC_DAIFMT_IB_IF: - ssicr |= CR_SWSP; /* word select starts low */ - break; - default: - pr_debug("ssi: invalid inversion\n"); - return -EINVAL; - } - - switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { - case SND_SOC_DAIFMT_BC_FC: - break; - case SND_SOC_DAIFMT_BP_FC: - ssicr |= CR_SCK_MASTER; - break; - case SND_SOC_DAIFMT_BC_FP: - ssicr |= CR_SWS_MASTER; - break; - case SND_SOC_DAIFMT_BP_FP: - ssicr |= CR_SWS_MASTER | CR_SCK_MASTER; - break; - default: - pr_debug("ssi: invalid master/secondary configuration\n"); - return -EINVAL; - } - - SSIREG(SSICR) = ssicr; - pr_debug("ssi_set_fmt() leave\nssicr is now 0x%08lx\n", ssicr); - - return 0; -} - -/* the SSI depends on an external clocksource (at HAC_BIT_CLK) even in - * Master mode, so really this is board specific; the SSI can do any - * rate with the right bitclk and divider settings. - */ -#define SSI_RATES \ - SNDRV_PCM_RATE_8000_192000 - -/* the SSI can do 8-32 bit samples, with 8 possible channels */ -#define SSI_FMTS \ - (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | \ - SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \ - SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \ - SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3LE | \ - SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE) - -static const struct snd_soc_dai_ops ssi_dai_ops = { - .startup = ssi_startup, - .shutdown = ssi_shutdown, - .trigger = ssi_trigger, - .hw_params = ssi_hw_params, - .set_sysclk = ssi_set_sysclk, - .set_clkdiv = ssi_set_clkdiv, - .set_fmt = ssi_set_fmt, -}; - -static struct snd_soc_dai_driver sh4_ssi_dai[] = { -{ - .name = "ssi-dai.0", - .playback = { - .rates = SSI_RATES, - .formats = SSI_FMTS, - .channels_min = 2, - .channels_max = 8, - }, - .capture = { - .rates = SSI_RATES, - .formats = SSI_FMTS, - .channels_min = 2, - .channels_max = 8, - }, - .ops = &ssi_dai_ops, -}, -#ifdef CONFIG_CPU_SUBTYPE_SH7760 -{ - .name = "ssi-dai.1", - .playback = { - .rates = SSI_RATES, - .formats = SSI_FMTS, - .channels_min = 2, - .channels_max = 8, - }, - .capture = { - .rates = SSI_RATES, - .formats = SSI_FMTS, - .channels_min = 2, - .channels_max = 8, - }, - .ops = &ssi_dai_ops, -}, -#endif -}; - -static const struct snd_soc_component_driver sh4_ssi_component = { - .name = "sh4-ssi", - .legacy_dai_naming = 1, -}; - -static int sh4_soc_dai_probe(struct platform_device *pdev) -{ - return devm_snd_soc_register_component(&pdev->dev, &sh4_ssi_component, - sh4_ssi_dai, - ARRAY_SIZE(sh4_ssi_dai)); -} - -static struct platform_driver sh4_ssi_driver = { - .driver = { - .name = "sh4-ssi-dai", - }, - - .probe = sh4_soc_dai_probe, -}; - -module_platform_driver(sh4_ssi_driver); - -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("SuperH onchip SSI (I2S) audio driver"); -MODULE_AUTHOR("Manuel Lauss "); From patchwork Fri Jan 13 06:23:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643100 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 41A75C54EBD for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDTy-000lWK-J8; Fri, 13 Jan 2023 06:24:07 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 06/22] watchdog: remove the shwdt driver Date: Fri, 13 Jan 2023 07:23:23 +0100 Message-Id: <20230113062339.1909087-7-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- .../watchdog/watchdog-parameters.rst | 12 - drivers/watchdog/Kconfig | 20 - drivers/watchdog/Makefile | 3 - drivers/watchdog/shwdt.c | 344 ------------------ 4 files changed, 379 deletions(-) delete mode 100644 drivers/watchdog/shwdt.c diff --git a/Documentation/watchdog/watchdog-parameters.rst b/Documentation/watchdog/watchdog-parameters.rst index 29153eed668900..553ac2f8ae23f7 100644 --- a/Documentation/watchdog/watchdog-parameters.rst +++ b/Documentation/watchdog/watchdog-parameters.rst @@ -579,18 +579,6 @@ scx200_wdt: ------------------------------------------------- -shwdt: - clock_division_ratio: - Clock division ratio. Valid ranges are from 0x5 (1.31ms) - to 0x7 (5.25ms). (default=7) - heartbeat: - Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30 - nowayout: - Watchdog cannot be stopped once started - (default=kernel config parameter) - -------------------------------------------------- - smsc37b787_wdt: timeout: range is 1-255 units, default is 60 diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 0bc40b763b0652..7db0a5e636cf65 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -2015,26 +2015,6 @@ config DIAG288_WATCHDOG To compile this driver as a module, choose M here. The module will be called diag288_wdt. -# SUPERH (sh + sh64) Architecture - -config SH_WDT - tristate "SuperH Watchdog" - depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) - select WATCHDOG_CORE - help - This driver adds watchdog support for the integrated watchdog in the - SuperH processors. If you have one of these processors and wish - to have watchdog support enabled, say Y, otherwise say N. - - As a side note, saying Y here will automatically boost HZ to 1000 - so that the timer has a chance to clear the overflow counter. On - slower systems (such as the SH-2 and SH-3) this will likely yield - some performance issues. As such, the WDT should be avoided here - unless it is absolutely necessary. - - To compile this driver as a module, choose M here: the - module will be called shwdt. - # SPARC Architecture # SPARC64 Architecture diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index 9cbf6580f16c9f..a852ab4d7176ac 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -195,9 +195,6 @@ obj-$(CONFIG_WATCHDOG_RTAS) += wdrtas.o # S390 Architecture obj-$(CONFIG_DIAG288_WATCHDOG) += diag288_wdt.o -# SUPERH (sh + sh64) Architecture -obj-$(CONFIG_SH_WDT) += shwdt.o - # SPARC Architecture # SPARC64 Architecture diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c deleted file mode 100644 index f55533e0e0454e..00000000000000 --- a/drivers/watchdog/shwdt.c +++ /dev/null @@ -1,344 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * drivers/watchdog/shwdt.c - * - * Watchdog driver for integrated watchdog in the SuperH processors. - * - * Copyright (C) 2001 - 2012 Paul Mundt - * - * 14-Dec-2001 Matt Domsch - * Added nowayout module option to override CONFIG_WATCHDOG_NOWAYOUT - * - * 19-Apr-2002 Rob Radez - * Added expect close support, made emulated timeout runtime changeable - * general cleanups, add some ioctls - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define DRV_NAME "sh-wdt" - -/* - * Default clock division ratio is 5.25 msecs. For an additional table of - * values, consult the asm-sh/watchdog.h. Overload this at module load - * time. - * - * In order for this to work reliably we need to have HZ set to 1000 or - * something quite higher than 100 (or we need a proper high-res timer - * implementation that will deal with this properly), otherwise the 10ms - * resolution of a jiffy is enough to trigger the overflow. For things like - * the SH-4 and SH-5, this isn't necessarily that big of a problem, though - * for the SH-2 and SH-3, this isn't recommended unless the WDT is absolutely - * necssary. - * - * As a result of this timing problem, the only modes that are particularly - * feasible are the 4096 and the 2048 divisors, which yield 5.25 and 2.62ms - * overflow periods respectively. - * - * Also, since we can't really expect userspace to be responsive enough - * before the overflow happens, we maintain two separate timers .. One in - * the kernel for clearing out WOVF every 2ms or so (again, this depends on - * HZ == 1000), and another for monitoring userspace writes to the WDT device. - * - * As such, we currently use a configurable heartbeat interval which defaults - * to 30s. In this case, the userspace daemon is only responsible for periodic - * writes to the device before the next heartbeat is scheduled. If the daemon - * misses its deadline, the kernel timer will allow the WDT to overflow. - */ -static int clock_division_ratio = WTCSR_CKS_4096; -#define next_ping_period(cks) (jiffies + msecs_to_jiffies(cks - 4)) - -#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat */ -static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */ -static bool nowayout = WATCHDOG_NOWAYOUT; -static unsigned long next_heartbeat; - -struct sh_wdt { - void __iomem *base; - struct device *dev; - struct clk *clk; - spinlock_t lock; - - struct timer_list timer; -}; - -static int sh_wdt_start(struct watchdog_device *wdt_dev) -{ - struct sh_wdt *wdt = watchdog_get_drvdata(wdt_dev); - unsigned long flags; - u8 csr; - - pm_runtime_get_sync(wdt->dev); - clk_enable(wdt->clk); - - spin_lock_irqsave(&wdt->lock, flags); - - next_heartbeat = jiffies + (heartbeat * HZ); - mod_timer(&wdt->timer, next_ping_period(clock_division_ratio)); - - csr = sh_wdt_read_csr(); - csr |= WTCSR_WT | clock_division_ratio; - sh_wdt_write_csr(csr); - - sh_wdt_write_cnt(0); - - /* - * These processors have a bit of an inconsistent initialization - * process.. starting with SH-3, RSTS was moved to WTCSR, and the - * RSTCSR register was removed. - * - * On the SH-2 however, in addition with bits being in different - * locations, we must deal with RSTCSR outright.. - */ - csr = sh_wdt_read_csr(); - csr |= WTCSR_TME; - csr &= ~WTCSR_RSTS; - sh_wdt_write_csr(csr); - -#ifdef CONFIG_CPU_SH2 - csr = sh_wdt_read_rstcsr(); - csr &= ~RSTCSR_RSTS; - sh_wdt_write_rstcsr(csr); -#endif - spin_unlock_irqrestore(&wdt->lock, flags); - - return 0; -} - -static int sh_wdt_stop(struct watchdog_device *wdt_dev) -{ - struct sh_wdt *wdt = watchdog_get_drvdata(wdt_dev); - unsigned long flags; - u8 csr; - - spin_lock_irqsave(&wdt->lock, flags); - - del_timer(&wdt->timer); - - csr = sh_wdt_read_csr(); - csr &= ~WTCSR_TME; - sh_wdt_write_csr(csr); - - spin_unlock_irqrestore(&wdt->lock, flags); - - clk_disable(wdt->clk); - pm_runtime_put_sync(wdt->dev); - - return 0; -} - -static int sh_wdt_keepalive(struct watchdog_device *wdt_dev) -{ - struct sh_wdt *wdt = watchdog_get_drvdata(wdt_dev); - unsigned long flags; - - spin_lock_irqsave(&wdt->lock, flags); - next_heartbeat = jiffies + (heartbeat * HZ); - spin_unlock_irqrestore(&wdt->lock, flags); - - return 0; -} - -static int sh_wdt_set_heartbeat(struct watchdog_device *wdt_dev, unsigned t) -{ - struct sh_wdt *wdt = watchdog_get_drvdata(wdt_dev); - unsigned long flags; - - if (unlikely(t < 1 || t > 3600)) /* arbitrary upper limit */ - return -EINVAL; - - spin_lock_irqsave(&wdt->lock, flags); - heartbeat = t; - wdt_dev->timeout = t; - spin_unlock_irqrestore(&wdt->lock, flags); - - return 0; -} - -static void sh_wdt_ping(struct timer_list *t) -{ - struct sh_wdt *wdt = from_timer(wdt, t, timer); - unsigned long flags; - - spin_lock_irqsave(&wdt->lock, flags); - if (time_before(jiffies, next_heartbeat)) { - u8 csr; - - csr = sh_wdt_read_csr(); - csr &= ~WTCSR_IOVF; - sh_wdt_write_csr(csr); - - sh_wdt_write_cnt(0); - - mod_timer(&wdt->timer, next_ping_period(clock_division_ratio)); - } else - dev_warn(wdt->dev, "Heartbeat lost! Will not ping " - "the watchdog\n"); - spin_unlock_irqrestore(&wdt->lock, flags); -} - -static const struct watchdog_info sh_wdt_info = { - .options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT | - WDIOF_MAGICCLOSE, - .firmware_version = 1, - .identity = "SH WDT", -}; - -static const struct watchdog_ops sh_wdt_ops = { - .owner = THIS_MODULE, - .start = sh_wdt_start, - .stop = sh_wdt_stop, - .ping = sh_wdt_keepalive, - .set_timeout = sh_wdt_set_heartbeat, -}; - -static struct watchdog_device sh_wdt_dev = { - .info = &sh_wdt_info, - .ops = &sh_wdt_ops, -}; - -static int sh_wdt_probe(struct platform_device *pdev) -{ - struct sh_wdt *wdt; - int rc; - - /* - * As this driver only covers the global watchdog case, reject - * any attempts to register per-CPU watchdogs. - */ - if (pdev->id != -1) - return -EINVAL; - - wdt = devm_kzalloc(&pdev->dev, sizeof(struct sh_wdt), GFP_KERNEL); - if (unlikely(!wdt)) - return -ENOMEM; - - wdt->dev = &pdev->dev; - - wdt->clk = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(wdt->clk)) { - /* - * Clock framework support is optional, continue on - * anyways if we don't find a matching clock. - */ - wdt->clk = NULL; - } - - wdt->base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(wdt->base)) - return PTR_ERR(wdt->base); - - watchdog_set_nowayout(&sh_wdt_dev, nowayout); - watchdog_set_drvdata(&sh_wdt_dev, wdt); - sh_wdt_dev.parent = &pdev->dev; - - spin_lock_init(&wdt->lock); - - rc = sh_wdt_set_heartbeat(&sh_wdt_dev, heartbeat); - if (unlikely(rc)) { - /* Default timeout if invalid */ - sh_wdt_set_heartbeat(&sh_wdt_dev, WATCHDOG_HEARTBEAT); - - dev_warn(&pdev->dev, - "heartbeat value must be 1<=x<=3600, using %d\n", - sh_wdt_dev.timeout); - } - - dev_info(&pdev->dev, "configured with heartbeat=%d sec (nowayout=%d)\n", - sh_wdt_dev.timeout, nowayout); - - rc = watchdog_register_device(&sh_wdt_dev); - if (unlikely(rc)) { - dev_err(&pdev->dev, "Can't register watchdog (err=%d)\n", rc); - return rc; - } - - timer_setup(&wdt->timer, sh_wdt_ping, 0); - wdt->timer.expires = next_ping_period(clock_division_ratio); - - dev_info(&pdev->dev, "initialized.\n"); - - pm_runtime_enable(&pdev->dev); - - return 0; -} - -static int sh_wdt_remove(struct platform_device *pdev) -{ - watchdog_unregister_device(&sh_wdt_dev); - - pm_runtime_disable(&pdev->dev); - - return 0; -} - -static void sh_wdt_shutdown(struct platform_device *pdev) -{ - sh_wdt_stop(&sh_wdt_dev); -} - -static struct platform_driver sh_wdt_driver = { - .driver = { - .name = DRV_NAME, - }, - - .probe = sh_wdt_probe, - .remove = sh_wdt_remove, - .shutdown = sh_wdt_shutdown, -}; - -static int __init sh_wdt_init(void) -{ - if (unlikely(clock_division_ratio < 0x5 || - clock_division_ratio > 0x7)) { - clock_division_ratio = WTCSR_CKS_4096; - - pr_info("divisor must be 0x5<=x<=0x7, using %d\n", - clock_division_ratio); - } - - return platform_driver_register(&sh_wdt_driver); -} - -static void __exit sh_wdt_exit(void) -{ - platform_driver_unregister(&sh_wdt_driver); -} -module_init(sh_wdt_init); -module_exit(sh_wdt_exit); - -MODULE_AUTHOR("Paul Mundt "); -MODULE_DESCRIPTION("SuperH watchdog driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); - -module_param(clock_division_ratio, int, 0); -MODULE_PARM_DESC(clock_division_ratio, - "Clock division ratio. Valid ranges are from 0x5 (1.31ms) " - "to 0x7 (5.25ms). (default=" __MODULE_STRING(WTCSR_CKS_4096) ")"); - -module_param(heartbeat, int, 0); -MODULE_PARM_DESC(heartbeat, - "Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=" - __MODULE_STRING(WATCHDOG_HEARTBEAT) ")"); - -module_param(nowayout, bool, 0); -MODULE_PARM_DESC(nowayout, - "Watchdog cannot be stopped once started (default=" - __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); From patchwork Fri Jan 13 06:23:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642580 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 287F4C61DB3 for ; Fri, 13 Jan 2023 06:27:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233217AbjAMG1E (ORCPT ); Fri, 13 Jan 2023 01:27:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33490 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234671AbjAMGYw (ORCPT ); Fri, 13 Jan 2023 01:24:52 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 41A176AD8E; Thu, 12 Jan 2023 22:24:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=iaAi+zESrNMNvvfEXFwVvV/C96H0o/Wg4Lh/ijTH/Rs=; b=bFRj3MYFOTjA0PSj1DEyvNksix /txq5zuehZaq1Obp5gHKz5id8DzeGGV7lKL1AlhZOUgWtvxuhMVAbMwGri/ic3+f0enD9lYjxMQxR Gf9Y2f2aOQpWUPFvfhpJhFzN7A8d5hLtjyalZeqPDUM7QjO4XAjWCeiOpKaBwU207o9TIBRxH7mXv 9vW0R9Uv9WQi52i2Oie2Pb8ur8xtcT8EDzxlRsm/eP88LuKtf9xnY5QQhes6Rk2Hh9F25LQMh2HOL FXdK9tEz8XfVNXQMf+wriv4ySdq3dT2hm7Zg5AxsfkPpD1KGm+e/o6nTrxQgdrQp+txMqv4euPuCk mWxG2tow==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDU1-000lXq-5b; Fri, 13 Jan 2023 06:24:09 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 07/22] cpufreq: remove the sh-cpufreq driver Date: Fri, 13 Jan 2023 07:23:24 +0100 Message-Id: <20230113062339.1909087-8-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/cpufreq/Kconfig | 14 --- drivers/cpufreq/Makefile | 1 - drivers/cpufreq/sh-cpufreq.c | 175 ----------------------------------- 3 files changed, 190 deletions(-) delete mode 100644 drivers/cpufreq/sh-cpufreq.c diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig index 2a84fc63371e2e..75a7a486308d8c 100644 --- a/drivers/cpufreq/Kconfig +++ b/drivers/cpufreq/Kconfig @@ -298,20 +298,6 @@ config SPARC_US2E_CPUFREQ If in doubt, say N. endif -if SUPERH -config SH_CPU_FREQ - tristate "SuperH CPU Frequency driver" - help - This adds the cpufreq driver for SuperH. Any CPU that supports - clock rate rounding through the clock framework can use this - driver. While it will make the kernel slightly larger, this is - harmless for CPUs that don't support rate rounding. The driver - will also generate a notice in the boot log before disabling - itself if the CPU in question is not capable of rate rounding. - - If unsure, say N. -endif - config QORIQ_CPUFREQ tristate "CPU frequency scaling driver for Freescale QorIQ SoCs" depends on OF && COMMON_CLK diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 32a7029e25ed81..9c16e77e3e87c0 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -112,6 +112,5 @@ obj-$(CONFIG_BMIPS_CPUFREQ) += bmips-cpufreq.o obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o obj-$(CONFIG_LOONGSON1_CPUFREQ) += loongson1-cpufreq.o -obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o obj-$(CONFIG_SPARC_US2E_CPUFREQ) += sparc-us2e-cpufreq.o obj-$(CONFIG_SPARC_US3_CPUFREQ) += sparc-us3-cpufreq.o diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c deleted file mode 100644 index b8704232c27b24..00000000000000 --- a/drivers/cpufreq/sh-cpufreq.c +++ /dev/null @@ -1,175 +0,0 @@ -/* - * cpufreq driver for the SuperH processors. - * - * Copyright (C) 2002 - 2012 Paul Mundt - * Copyright (C) 2002 M. R. Brown - * - * Clock framework bits from arch/avr32/mach-at32ap/cpufreq.c - * - * Copyright (C) 2004-2007 Atmel Corporation - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "cpufreq: " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static DEFINE_PER_CPU(struct clk, sh_cpuclk); - -struct cpufreq_target { - struct cpufreq_policy *policy; - unsigned int freq; -}; - -static unsigned int sh_cpufreq_get(unsigned int cpu) -{ - return (clk_get_rate(&per_cpu(sh_cpuclk, cpu)) + 500) / 1000; -} - -static long __sh_cpufreq_target(void *arg) -{ - struct cpufreq_target *target = arg; - struct cpufreq_policy *policy = target->policy; - int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - struct cpufreq_freqs freqs; - struct device *dev; - long freq; - - if (smp_processor_id() != cpu) - return -ENODEV; - - dev = get_cpu_device(cpu); - - /* Convert target_freq from kHz to Hz */ - freq = clk_round_rate(cpuclk, target->freq * 1000); - - if (freq < (policy->min * 1000) || freq > (policy->max * 1000)) - return -EINVAL; - - dev_dbg(dev, "requested frequency %u Hz\n", target->freq * 1000); - - freqs.old = sh_cpufreq_get(cpu); - freqs.new = (freq + 500) / 1000; - freqs.flags = 0; - - cpufreq_freq_transition_begin(target->policy, &freqs); - clk_set_rate(cpuclk, freq); - cpufreq_freq_transition_end(target->policy, &freqs, 0); - - dev_dbg(dev, "set frequency %lu Hz\n", freq); - return 0; -} - -/* - * Here we notify other drivers of the proposed change and the final change. - */ -static int sh_cpufreq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - struct cpufreq_target data = { .policy = policy, .freq = target_freq }; - - return work_on_cpu(policy->cpu, __sh_cpufreq_target, &data); -} - -static int sh_cpufreq_verify(struct cpufreq_policy_data *policy) -{ - struct clk *cpuclk = &per_cpu(sh_cpuclk, policy->cpu); - struct cpufreq_frequency_table *freq_table; - - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL; - if (freq_table) - return cpufreq_frequency_table_verify(policy, freq_table); - - cpufreq_verify_within_cpu_limits(policy); - - policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - - cpufreq_verify_within_cpu_limits(policy); - return 0; -} - -static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - struct cpufreq_frequency_table *freq_table; - struct device *dev; - - dev = get_cpu_device(cpu); - - cpuclk = clk_get(dev, "cpu_clk"); - if (IS_ERR(cpuclk)) { - dev_err(dev, "couldn't get CPU clk\n"); - return PTR_ERR(cpuclk); - } - - freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL; - if (freq_table) { - policy->freq_table = freq_table; - } else { - dev_notice(dev, "no frequency table found, falling back " - "to rate rounding.\n"); - - policy->min = policy->cpuinfo.min_freq = - (clk_round_rate(cpuclk, 1) + 500) / 1000; - policy->max = policy->cpuinfo.max_freq = - (clk_round_rate(cpuclk, ~0UL) + 500) / 1000; - } - - return 0; -} - -static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - struct clk *cpuclk = &per_cpu(sh_cpuclk, cpu); - - clk_put(cpuclk); - - return 0; -} - -static struct cpufreq_driver sh_cpufreq_driver = { - .name = "sh", - .flags = CPUFREQ_NO_AUTO_DYNAMIC_SWITCHING, - .get = sh_cpufreq_get, - .target = sh_cpufreq_target, - .verify = sh_cpufreq_verify, - .init = sh_cpufreq_cpu_init, - .exit = sh_cpufreq_cpu_exit, - .attr = cpufreq_generic_attr, -}; - -static int __init sh_cpufreq_module_init(void) -{ - pr_notice("SuperH CPU frequency driver.\n"); - return cpufreq_register_driver(&sh_cpufreq_driver); -} - -static void __exit sh_cpufreq_module_exit(void) -{ - cpufreq_unregister_driver(&sh_cpufreq_driver); -} - -module_init(sh_cpufreq_module_init); -module_exit(sh_cpufreq_module_exit); - -MODULE_AUTHOR("Paul Mundt "); -MODULE_DESCRIPTION("cpufreq driver for SuperH"); -MODULE_LICENSE("GPL"); From patchwork Fri Jan 13 06:23:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643095 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D98C8C71143 for ; Fri, 13 Jan 2023 06:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241177AbjAMG3N (ORCPT ); Fri, 13 Jan 2023 01:29:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60484 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240122AbjAMGZG (ORCPT ); Fri, 13 Jan 2023 01:25:06 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 888386AD81; Thu, 12 Jan 2023 22:24:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=uYJHAXXmLLwNQhTzaxgylPcAhRmrIofyohyZoeMvH6A=; b=O9iHd8tTAdld8bSk+ZYkR0XYZy 2FuVzfaL8+QL6xMnlPS9ImDdfrVmrsT0bBu6ltAfdqg3tZ8KHWyQj3fcy7LsIMSUyZEf4JyF1NO/u 2Ts4+jOpsmzngPoutWMosurrp3mGqo1ovVKSnCoZsYAwo0uVYE6mREk0pxLXWhs9KHUyyY4RrDi1s ckbuJtm4E90O4qjKhGszRSFnFx2n1e7KSOOiE2NOT+ddsS+UK8qKQjoMHxsg7UASbpmlsrI2MUcNr U3LKQcwW662AanMhRCQ9l+fUskCCYGWjf3f0p00y4z00yMr4itbMdi+aRN3kbJr3aDbphSgt4Qqgh s26wPgJg==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDU4-000lZR-IG; Fri, 13 Jan 2023 06:24:13 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 08/22] dmaengine: remove the shdmac driver Date: Fri, 13 Jan 2023 07:23:25 +0100 Message-Id: <20230113062339.1909087-9-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/dma/sh/Kconfig | 20 - drivers/dma/sh/Makefile | 13 - drivers/dma/sh/shdma-base.c | 1052 ----------------------------------- drivers/dma/sh/shdma.h | 61 -- drivers/dma/sh/shdmac.c | 938 ------------------------------- include/linux/shdma-base.h | 4 - 6 files changed, 2088 deletions(-) delete mode 100644 drivers/dma/sh/shdma-base.c delete mode 100644 drivers/dma/sh/shdma.h delete mode 100644 drivers/dma/sh/shdmac.c diff --git a/drivers/dma/sh/Kconfig b/drivers/dma/sh/Kconfig index c0b2997ab7fd93..744d4d8ff5353b 100644 --- a/drivers/dma/sh/Kconfig +++ b/drivers/dma/sh/Kconfig @@ -7,30 +7,10 @@ config RENESAS_DMA bool select DMA_ENGINE -# -# DMA Engine Helpers -# - -config SH_DMAE_BASE - bool "Renesas SuperH DMA Engine support" - depends on SUPERH || COMPILE_TEST - depends on !SUPERH || SH_DMA - depends on !SH_DMA_API - default y - select RENESAS_DMA - help - Enable support for the Renesas SuperH DMA controllers. - # # DMA Controllers # -config SH_DMAE - tristate "Renesas SuperH DMAC support" - depends on SH_DMAE_BASE - help - Enable support for the Renesas SuperH DMA controllers. - config RCAR_DMAC tristate "Renesas R-Car Gen{2,3} and RZ/G{1,2} DMA Controller" depends on ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile index 360ab6d25e769d..07178651aa7279 100644 --- a/drivers/dma/sh/Makefile +++ b/drivers/dma/sh/Makefile @@ -1,17 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -# -# DMA Engine Helpers -# - -obj-$(CONFIG_SH_DMAE_BASE) += shdma-base.o - -# -# DMA Controllers -# - -shdma-y := shdmac.o -shdma-objs := $(shdma-y) -obj-$(CONFIG_SH_DMAE) += shdma.o obj-$(CONFIG_RCAR_DMAC) += rcar-dmac.o obj-$(CONFIG_RENESAS_USB_DMAC) += usb-dmac.o diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c deleted file mode 100644 index 158e5e7defaeb0..00000000000000 --- a/drivers/dma/sh/shdma-base.c +++ /dev/null @@ -1,1052 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Dmaengine driver base library for DMA controllers, found on SH-based SoCs - * - * extracted from shdma.c - * - * Copyright (C) 2011-2012 Guennadi Liakhovetski - * Copyright (C) 2009 Nobuhiro Iwamatsu - * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved. - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../dmaengine.h" - -/* DMA descriptor control */ -enum shdma_desc_status { - DESC_IDLE, - DESC_PREPARED, - DESC_SUBMITTED, - DESC_COMPLETED, /* completed, have to call callback */ - DESC_WAITING, /* callback called, waiting for ack / re-submit */ -}; - -#define NR_DESCS_PER_CHANNEL 32 - -#define to_shdma_chan(c) container_of(c, struct shdma_chan, dma_chan) -#define to_shdma_dev(d) container_of(d, struct shdma_dev, dma_dev) - -/* - * For slave DMA we assume, that there is a finite number of DMA slaves in the - * system, and that each such slave can only use a finite number of channels. - * We use slave channel IDs to make sure, that no such slave channel ID is - * allocated more than once. - */ -static unsigned int slave_num = 256; -module_param(slave_num, uint, 0444); - -/* A bitmask with slave_num bits */ -static unsigned long *shdma_slave_used; - -/* Called under spin_lock_irq(&schan->chan_lock") */ -static void shdma_chan_xfer_ld_queue(struct shdma_chan *schan) -{ - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - struct shdma_desc *sdesc; - - /* DMA work check */ - if (ops->channel_busy(schan)) - return; - - /* Find the first not transferred descriptor */ - list_for_each_entry(sdesc, &schan->ld_queue, node) - if (sdesc->mark == DESC_SUBMITTED) { - ops->start_xfer(schan, sdesc); - break; - } -} - -static dma_cookie_t shdma_tx_submit(struct dma_async_tx_descriptor *tx) -{ - struct shdma_desc *chunk, *c, *desc = - container_of(tx, struct shdma_desc, async_tx); - struct shdma_chan *schan = to_shdma_chan(tx->chan); - dma_async_tx_callback callback = tx->callback; - dma_cookie_t cookie; - bool power_up; - - spin_lock_irq(&schan->chan_lock); - - power_up = list_empty(&schan->ld_queue); - - cookie = dma_cookie_assign(tx); - - /* Mark all chunks of this descriptor as submitted, move to the queue */ - list_for_each_entry_safe(chunk, c, desc->node.prev, node) { - /* - * All chunks are on the global ld_free, so, we have to find - * the end of the chain ourselves - */ - if (chunk != desc && (chunk->mark == DESC_IDLE || - chunk->async_tx.cookie > 0 || - chunk->async_tx.cookie == -EBUSY || - &chunk->node == &schan->ld_free)) - break; - chunk->mark = DESC_SUBMITTED; - if (chunk->chunks == 1) { - chunk->async_tx.callback = callback; - chunk->async_tx.callback_param = tx->callback_param; - } else { - /* Callback goes to the last chunk */ - chunk->async_tx.callback = NULL; - } - chunk->cookie = cookie; - list_move_tail(&chunk->node, &schan->ld_queue); - - dev_dbg(schan->dev, "submit #%d@%p on %d\n", - tx->cookie, &chunk->async_tx, schan->id); - } - - if (power_up) { - int ret; - schan->pm_state = SHDMA_PM_BUSY; - - ret = pm_runtime_get(schan->dev); - - spin_unlock_irq(&schan->chan_lock); - if (ret < 0) - dev_err(schan->dev, "%s(): GET = %d\n", __func__, ret); - - pm_runtime_barrier(schan->dev); - - spin_lock_irq(&schan->chan_lock); - - /* Have we been reset, while waiting? */ - if (schan->pm_state != SHDMA_PM_ESTABLISHED) { - struct shdma_dev *sdev = - to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - dev_dbg(schan->dev, "Bring up channel %d\n", - schan->id); - /* - * TODO: .xfer_setup() might fail on some platforms. - * Make it int then, on error remove chunks from the - * queue again - */ - ops->setup_xfer(schan, schan->slave_id); - - if (schan->pm_state == SHDMA_PM_PENDING) - shdma_chan_xfer_ld_queue(schan); - schan->pm_state = SHDMA_PM_ESTABLISHED; - } - } else { - /* - * Tell .device_issue_pending() not to run the queue, interrupts - * will do it anyway - */ - schan->pm_state = SHDMA_PM_PENDING; - } - - spin_unlock_irq(&schan->chan_lock); - - return cookie; -} - -/* Called with desc_lock held */ -static struct shdma_desc *shdma_get_desc(struct shdma_chan *schan) -{ - struct shdma_desc *sdesc; - - list_for_each_entry(sdesc, &schan->ld_free, node) - if (sdesc->mark != DESC_PREPARED) { - BUG_ON(sdesc->mark != DESC_IDLE); - list_del(&sdesc->node); - return sdesc; - } - - return NULL; -} - -static int shdma_setup_slave(struct shdma_chan *schan, dma_addr_t slave_addr) -{ - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - int ret, match; - - if (schan->dev->of_node) { - match = schan->hw_req; - ret = ops->set_slave(schan, match, slave_addr, true); - if (ret < 0) - return ret; - } else { - match = schan->real_slave_id; - } - - if (schan->real_slave_id < 0 || schan->real_slave_id >= slave_num) - return -EINVAL; - - if (test_and_set_bit(schan->real_slave_id, shdma_slave_used)) - return -EBUSY; - - ret = ops->set_slave(schan, match, slave_addr, false); - if (ret < 0) { - clear_bit(schan->real_slave_id, shdma_slave_used); - return ret; - } - - schan->slave_id = schan->real_slave_id; - - return 0; -} - -static int shdma_alloc_chan_resources(struct dma_chan *chan) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - struct shdma_desc *desc; - struct shdma_slave *slave = chan->private; - int ret, i; - - /* - * This relies on the guarantee from dmaengine that alloc_chan_resources - * never runs concurrently with itself or free_chan_resources. - */ - if (slave) { - /* Legacy mode: .private is set in filter */ - schan->real_slave_id = slave->slave_id; - ret = shdma_setup_slave(schan, 0); - if (ret < 0) - goto esetslave; - } else { - /* Normal mode: real_slave_id was set by filter */ - schan->slave_id = -EINVAL; - } - - schan->desc = kcalloc(NR_DESCS_PER_CHANNEL, - sdev->desc_size, GFP_KERNEL); - if (!schan->desc) { - ret = -ENOMEM; - goto edescalloc; - } - schan->desc_num = NR_DESCS_PER_CHANNEL; - - for (i = 0; i < NR_DESCS_PER_CHANNEL; i++) { - desc = ops->embedded_desc(schan->desc, i); - dma_async_tx_descriptor_init(&desc->async_tx, - &schan->dma_chan); - desc->async_tx.tx_submit = shdma_tx_submit; - desc->mark = DESC_IDLE; - - list_add(&desc->node, &schan->ld_free); - } - - return NR_DESCS_PER_CHANNEL; - -edescalloc: - if (slave) -esetslave: - clear_bit(slave->slave_id, shdma_slave_used); - chan->private = NULL; - return ret; -} - -/* - * This is the standard shdma filter function to be used as a replacement to the - * "old" method, using the .private pointer. - * You always have to pass a valid slave id as the argument, old drivers that - * pass ERR_PTR(-EINVAL) as a filter parameter and set it up in dma_slave_config - * need to be updated so we can remove the slave_id field from dma_slave_config. - * parameter. If this filter is used, the slave driver, after calling - * dma_request_channel(), will also have to call dmaengine_slave_config() with - * .direction, and either .src_addr or .dst_addr set. - * - * NOTE: this filter doesn't support multiple DMAC drivers with the DMA_SLAVE - * capability! If this becomes a requirement, hardware glue drivers, using this - * services would have to provide their own filters, which first would check - * the device driver, similar to how other DMAC drivers, e.g., sa11x0-dma.c, do - * this, and only then, in case of a match, call this common filter. - * NOTE 2: This filter function is also used in the DT case by shdma_of_xlate(). - * In that case the MID-RID value is used for slave channel filtering and is - * passed to this function in the "arg" parameter. - */ -bool shdma_chan_filter(struct dma_chan *chan, void *arg) -{ - struct shdma_chan *schan; - struct shdma_dev *sdev; - int slave_id = (long)arg; - int ret; - - /* Only support channels handled by this driver. */ - if (chan->device->device_alloc_chan_resources != - shdma_alloc_chan_resources) - return false; - - schan = to_shdma_chan(chan); - sdev = to_shdma_dev(chan->device); - - /* - * For DT, the schan->slave_id field is generated by the - * set_slave function from the slave ID that is passed in - * from xlate. For the non-DT case, the slave ID is - * directly passed into the filter function by the driver - */ - if (schan->dev->of_node) { - ret = sdev->ops->set_slave(schan, slave_id, 0, true); - if (ret < 0) - return false; - - schan->real_slave_id = schan->slave_id; - return true; - } - - if (slave_id < 0) { - /* No slave requested - arbitrary channel */ - dev_warn(sdev->dma_dev.dev, "invalid slave ID passed to dma_request_slave\n"); - return true; - } - - if (slave_id >= slave_num) - return false; - - ret = sdev->ops->set_slave(schan, slave_id, 0, true); - if (ret < 0) - return false; - - schan->real_slave_id = slave_id; - - return true; -} -EXPORT_SYMBOL(shdma_chan_filter); - -static dma_async_tx_callback __ld_cleanup(struct shdma_chan *schan, bool all) -{ - struct shdma_desc *desc, *_desc; - /* Is the "exposed" head of a chain acked? */ - bool head_acked = false; - dma_cookie_t cookie = 0; - dma_async_tx_callback callback = NULL; - struct dmaengine_desc_callback cb; - unsigned long flags; - LIST_HEAD(cyclic_list); - - memset(&cb, 0, sizeof(cb)); - spin_lock_irqsave(&schan->chan_lock, flags); - list_for_each_entry_safe(desc, _desc, &schan->ld_queue, node) { - struct dma_async_tx_descriptor *tx = &desc->async_tx; - - BUG_ON(tx->cookie > 0 && tx->cookie != desc->cookie); - BUG_ON(desc->mark != DESC_SUBMITTED && - desc->mark != DESC_COMPLETED && - desc->mark != DESC_WAITING); - - /* - * queue is ordered, and we use this loop to (1) clean up all - * completed descriptors, and to (2) update descriptor flags of - * any chunks in a (partially) completed chain - */ - if (!all && desc->mark == DESC_SUBMITTED && - desc->cookie != cookie) - break; - - if (tx->cookie > 0) - cookie = tx->cookie; - - if (desc->mark == DESC_COMPLETED && desc->chunks == 1) { - if (schan->dma_chan.completed_cookie != desc->cookie - 1) - dev_dbg(schan->dev, - "Completing cookie %d, expected %d\n", - desc->cookie, - schan->dma_chan.completed_cookie + 1); - schan->dma_chan.completed_cookie = desc->cookie; - } - - /* Call callback on the last chunk */ - if (desc->mark == DESC_COMPLETED && tx->callback) { - desc->mark = DESC_WAITING; - dmaengine_desc_get_callback(tx, &cb); - callback = tx->callback; - dev_dbg(schan->dev, "descriptor #%d@%p on %d callback\n", - tx->cookie, tx, schan->id); - BUG_ON(desc->chunks != 1); - break; - } - - if (tx->cookie > 0 || tx->cookie == -EBUSY) { - if (desc->mark == DESC_COMPLETED) { - BUG_ON(tx->cookie < 0); - desc->mark = DESC_WAITING; - } - head_acked = async_tx_test_ack(tx); - } else { - switch (desc->mark) { - case DESC_COMPLETED: - desc->mark = DESC_WAITING; - fallthrough; - case DESC_WAITING: - if (head_acked) - async_tx_ack(&desc->async_tx); - } - } - - dev_dbg(schan->dev, "descriptor %p #%d completed.\n", - tx, tx->cookie); - - if (((desc->mark == DESC_COMPLETED || - desc->mark == DESC_WAITING) && - async_tx_test_ack(&desc->async_tx)) || all) { - - if (all || !desc->cyclic) { - /* Remove from ld_queue list */ - desc->mark = DESC_IDLE; - list_move(&desc->node, &schan->ld_free); - } else { - /* reuse as cyclic */ - desc->mark = DESC_SUBMITTED; - list_move_tail(&desc->node, &cyclic_list); - } - - if (list_empty(&schan->ld_queue)) { - dev_dbg(schan->dev, "Bring down channel %d\n", schan->id); - pm_runtime_put(schan->dev); - schan->pm_state = SHDMA_PM_ESTABLISHED; - } else if (schan->pm_state == SHDMA_PM_PENDING) { - shdma_chan_xfer_ld_queue(schan); - } - } - } - - if (all && !callback) - /* - * Terminating and the loop completed normally: forgive - * uncompleted cookies - */ - schan->dma_chan.completed_cookie = schan->dma_chan.cookie; - - list_splice_tail(&cyclic_list, &schan->ld_queue); - - spin_unlock_irqrestore(&schan->chan_lock, flags); - - dmaengine_desc_callback_invoke(&cb, NULL); - - return callback; -} - -/* - * shdma_chan_ld_cleanup - Clean up link descriptors - * - * Clean up the ld_queue of DMA channel. - */ -static void shdma_chan_ld_cleanup(struct shdma_chan *schan, bool all) -{ - while (__ld_cleanup(schan, all)) - ; -} - -/* - * shdma_free_chan_resources - Free all resources of the channel. - */ -static void shdma_free_chan_resources(struct dma_chan *chan) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct shdma_dev *sdev = to_shdma_dev(chan->device); - const struct shdma_ops *ops = sdev->ops; - LIST_HEAD(list); - - /* Protect against ISR */ - spin_lock_irq(&schan->chan_lock); - ops->halt_channel(schan); - spin_unlock_irq(&schan->chan_lock); - - /* Now no new interrupts will occur */ - - /* Prepared and not submitted descriptors can still be on the queue */ - if (!list_empty(&schan->ld_queue)) - shdma_chan_ld_cleanup(schan, true); - - if (schan->slave_id >= 0) { - /* The caller is holding dma_list_mutex */ - clear_bit(schan->slave_id, shdma_slave_used); - chan->private = NULL; - } - - schan->real_slave_id = 0; - - spin_lock_irq(&schan->chan_lock); - - list_splice_init(&schan->ld_free, &list); - schan->desc_num = 0; - - spin_unlock_irq(&schan->chan_lock); - - kfree(schan->desc); -} - -/** - * shdma_add_desc - get, set up and return one transfer descriptor - * @schan: DMA channel - * @flags: DMA transfer flags - * @dst: destination DMA address, incremented when direction equals - * DMA_DEV_TO_MEM or DMA_MEM_TO_MEM - * @src: source DMA address, incremented when direction equals - * DMA_MEM_TO_DEV or DMA_MEM_TO_MEM - * @len: DMA transfer length - * @first: if NULL, set to the current descriptor and cookie set to -EBUSY - * @direction: needed for slave DMA to decide which address to keep constant, - * equals DMA_MEM_TO_MEM for MEMCPY - * Returns 0 or an error - * Locks: called with desc_lock held - */ -static struct shdma_desc *shdma_add_desc(struct shdma_chan *schan, - unsigned long flags, dma_addr_t *dst, dma_addr_t *src, size_t *len, - struct shdma_desc **first, enum dma_transfer_direction direction) -{ - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - struct shdma_desc *new; - size_t copy_size = *len; - - if (!copy_size) - return NULL; - - /* Allocate the link descriptor from the free list */ - new = shdma_get_desc(schan); - if (!new) { - dev_err(schan->dev, "No free link descriptor available\n"); - return NULL; - } - - ops->desc_setup(schan, new, *src, *dst, ©_size); - - if (!*first) { - /* First desc */ - new->async_tx.cookie = -EBUSY; - *first = new; - } else { - /* Other desc - invisible to the user */ - new->async_tx.cookie = -EINVAL; - } - - dev_dbg(schan->dev, - "chaining (%zu/%zu)@%pad -> %pad with %p, cookie %d\n", - copy_size, *len, src, dst, &new->async_tx, - new->async_tx.cookie); - - new->mark = DESC_PREPARED; - new->async_tx.flags = flags; - new->direction = direction; - new->partial = 0; - - *len -= copy_size; - if (direction == DMA_MEM_TO_MEM || direction == DMA_MEM_TO_DEV) - *src += copy_size; - if (direction == DMA_MEM_TO_MEM || direction == DMA_DEV_TO_MEM) - *dst += copy_size; - - return new; -} - -/* - * shdma_prep_sg - prepare transfer descriptors from an SG list - * - * Common routine for public (MEMCPY) and slave DMA. The MEMCPY case is also - * converted to scatter-gather to guarantee consistent locking and a correct - * list manipulation. For slave DMA direction carries the usual meaning, and, - * logically, the SG list is RAM and the addr variable contains slave address, - * e.g., the FIFO I/O register. For MEMCPY direction equals DMA_MEM_TO_MEM - * and the SG list contains only one element and points at the source buffer. - */ -static struct dma_async_tx_descriptor *shdma_prep_sg(struct shdma_chan *schan, - struct scatterlist *sgl, unsigned int sg_len, dma_addr_t *addr, - enum dma_transfer_direction direction, unsigned long flags, bool cyclic) -{ - struct scatterlist *sg; - struct shdma_desc *first = NULL, *new = NULL /* compiler... */; - LIST_HEAD(tx_list); - int chunks = 0; - unsigned long irq_flags; - int i; - - for_each_sg(sgl, sg, sg_len, i) - chunks += DIV_ROUND_UP(sg_dma_len(sg), schan->max_xfer_len); - - /* Have to lock the whole loop to protect against concurrent release */ - spin_lock_irqsave(&schan->chan_lock, irq_flags); - - /* - * Chaining: - * first descriptor is what user is dealing with in all API calls, its - * cookie is at first set to -EBUSY, at tx-submit to a positive - * number - * if more than one chunk is needed further chunks have cookie = -EINVAL - * the last chunk, if not equal to the first, has cookie = -ENOSPC - * all chunks are linked onto the tx_list head with their .node heads - * only during this function, then they are immediately spliced - * back onto the free list in form of a chain - */ - for_each_sg(sgl, sg, sg_len, i) { - dma_addr_t sg_addr = sg_dma_address(sg); - size_t len = sg_dma_len(sg); - - if (!len) - goto err_get_desc; - - do { - dev_dbg(schan->dev, "Add SG #%d@%p[%zu], dma %pad\n", - i, sg, len, &sg_addr); - - if (direction == DMA_DEV_TO_MEM) - new = shdma_add_desc(schan, flags, - &sg_addr, addr, &len, &first, - direction); - else - new = shdma_add_desc(schan, flags, - addr, &sg_addr, &len, &first, - direction); - if (!new) - goto err_get_desc; - - new->cyclic = cyclic; - if (cyclic) - new->chunks = 1; - else - new->chunks = chunks--; - list_add_tail(&new->node, &tx_list); - } while (len); - } - - if (new != first) - new->async_tx.cookie = -ENOSPC; - - /* Put them back on the free list, so, they don't get lost */ - list_splice_tail(&tx_list, &schan->ld_free); - - spin_unlock_irqrestore(&schan->chan_lock, irq_flags); - - return &first->async_tx; - -err_get_desc: - list_for_each_entry(new, &tx_list, node) - new->mark = DESC_IDLE; - list_splice(&tx_list, &schan->ld_free); - - spin_unlock_irqrestore(&schan->chan_lock, irq_flags); - - return NULL; -} - -static struct dma_async_tx_descriptor *shdma_prep_memcpy( - struct dma_chan *chan, dma_addr_t dma_dest, dma_addr_t dma_src, - size_t len, unsigned long flags) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct scatterlist sg; - - if (!chan || !len) - return NULL; - - BUG_ON(!schan->desc_num); - - sg_init_table(&sg, 1); - sg_set_page(&sg, pfn_to_page(PFN_DOWN(dma_src)), len, - offset_in_page(dma_src)); - sg_dma_address(&sg) = dma_src; - sg_dma_len(&sg) = len; - - return shdma_prep_sg(schan, &sg, 1, &dma_dest, DMA_MEM_TO_MEM, - flags, false); -} - -static struct dma_async_tx_descriptor *shdma_prep_slave_sg( - struct dma_chan *chan, struct scatterlist *sgl, unsigned int sg_len, - enum dma_transfer_direction direction, unsigned long flags, void *context) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - const struct shdma_ops *ops = sdev->ops; - int slave_id = schan->slave_id; - dma_addr_t slave_addr; - - if (!chan) - return NULL; - - BUG_ON(!schan->desc_num); - - /* Someone calling slave DMA on a generic channel? */ - if (slave_id < 0 || !sg_len) { - dev_warn(schan->dev, "%s: bad parameter: len=%d, id=%d\n", - __func__, sg_len, slave_id); - return NULL; - } - - slave_addr = ops->slave_addr(schan); - - return shdma_prep_sg(schan, sgl, sg_len, &slave_addr, - direction, flags, false); -} - -#define SHDMA_MAX_SG_LEN 32 - -static struct dma_async_tx_descriptor *shdma_prep_dma_cyclic( - struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, - size_t period_len, enum dma_transfer_direction direction, - unsigned long flags) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct shdma_dev *sdev = to_shdma_dev(schan->dma_chan.device); - struct dma_async_tx_descriptor *desc; - const struct shdma_ops *ops = sdev->ops; - unsigned int sg_len = buf_len / period_len; - int slave_id = schan->slave_id; - dma_addr_t slave_addr; - struct scatterlist *sgl; - int i; - - if (!chan) - return NULL; - - BUG_ON(!schan->desc_num); - - if (sg_len > SHDMA_MAX_SG_LEN) { - dev_err(schan->dev, "sg length %d exceeds limit %d", - sg_len, SHDMA_MAX_SG_LEN); - return NULL; - } - - /* Someone calling slave DMA on a generic channel? */ - if (slave_id < 0 || (buf_len < period_len)) { - dev_warn(schan->dev, - "%s: bad parameter: buf_len=%zu, period_len=%zu, id=%d\n", - __func__, buf_len, period_len, slave_id); - return NULL; - } - - slave_addr = ops->slave_addr(schan); - - /* - * Allocate the sg list dynamically as it would consumer too much stack - * space. - */ - sgl = kmalloc_array(sg_len, sizeof(*sgl), GFP_KERNEL); - if (!sgl) - return NULL; - - sg_init_table(sgl, sg_len); - - for (i = 0; i < sg_len; i++) { - dma_addr_t src = buf_addr + (period_len * i); - - sg_set_page(&sgl[i], pfn_to_page(PFN_DOWN(src)), period_len, - offset_in_page(src)); - sg_dma_address(&sgl[i]) = src; - sg_dma_len(&sgl[i]) = period_len; - } - - desc = shdma_prep_sg(schan, sgl, sg_len, &slave_addr, - direction, flags, true); - - kfree(sgl); - return desc; -} - -static int shdma_terminate_all(struct dma_chan *chan) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - struct shdma_dev *sdev = to_shdma_dev(chan->device); - const struct shdma_ops *ops = sdev->ops; - unsigned long flags; - - spin_lock_irqsave(&schan->chan_lock, flags); - ops->halt_channel(schan); - - if (ops->get_partial && !list_empty(&schan->ld_queue)) { - /* Record partial transfer */ - struct shdma_desc *desc = list_first_entry(&schan->ld_queue, - struct shdma_desc, node); - desc->partial = ops->get_partial(schan, desc); - } - - spin_unlock_irqrestore(&schan->chan_lock, flags); - - shdma_chan_ld_cleanup(schan, true); - - return 0; -} - -static int shdma_config(struct dma_chan *chan, - struct dma_slave_config *config) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - - /* - * So far only .slave_id is used, but the slave drivers are - * encouraged to also set a transfer direction and an address. - */ - if (!config) - return -EINVAL; - - /* - * We could lock this, but you shouldn't be configuring the - * channel, while using it... - */ - return shdma_setup_slave(schan, - config->direction == DMA_DEV_TO_MEM ? - config->src_addr : config->dst_addr); -} - -static void shdma_issue_pending(struct dma_chan *chan) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - - spin_lock_irq(&schan->chan_lock); - if (schan->pm_state == SHDMA_PM_ESTABLISHED) - shdma_chan_xfer_ld_queue(schan); - else - schan->pm_state = SHDMA_PM_PENDING; - spin_unlock_irq(&schan->chan_lock); -} - -static enum dma_status shdma_tx_status(struct dma_chan *chan, - dma_cookie_t cookie, - struct dma_tx_state *txstate) -{ - struct shdma_chan *schan = to_shdma_chan(chan); - enum dma_status status; - unsigned long flags; - - shdma_chan_ld_cleanup(schan, false); - - spin_lock_irqsave(&schan->chan_lock, flags); - - status = dma_cookie_status(chan, cookie, txstate); - - /* - * If we don't find cookie on the queue, it has been aborted and we have - * to report error - */ - if (status != DMA_COMPLETE) { - struct shdma_desc *sdesc; - status = DMA_ERROR; - list_for_each_entry(sdesc, &schan->ld_queue, node) - if (sdesc->cookie == cookie) { - status = DMA_IN_PROGRESS; - break; - } - } - - spin_unlock_irqrestore(&schan->chan_lock, flags); - - return status; -} - -/* Called from error IRQ or NMI */ -bool shdma_reset(struct shdma_dev *sdev) -{ - const struct shdma_ops *ops = sdev->ops; - struct shdma_chan *schan; - unsigned int handled = 0; - int i; - - /* Reset all channels */ - shdma_for_each_chan(schan, sdev, i) { - struct shdma_desc *sdesc; - LIST_HEAD(dl); - - if (!schan) - continue; - - spin_lock(&schan->chan_lock); - - /* Stop the channel */ - ops->halt_channel(schan); - - list_splice_init(&schan->ld_queue, &dl); - - if (!list_empty(&dl)) { - dev_dbg(schan->dev, "Bring down channel %d\n", schan->id); - pm_runtime_put(schan->dev); - } - schan->pm_state = SHDMA_PM_ESTABLISHED; - - spin_unlock(&schan->chan_lock); - - /* Complete all */ - list_for_each_entry(sdesc, &dl, node) { - struct dma_async_tx_descriptor *tx = &sdesc->async_tx; - - sdesc->mark = DESC_IDLE; - dmaengine_desc_get_callback_invoke(tx, NULL); - } - - spin_lock(&schan->chan_lock); - list_splice(&dl, &schan->ld_free); - spin_unlock(&schan->chan_lock); - - handled++; - } - - return !!handled; -} -EXPORT_SYMBOL(shdma_reset); - -static irqreturn_t chan_irq(int irq, void *dev) -{ - struct shdma_chan *schan = dev; - const struct shdma_ops *ops = - to_shdma_dev(schan->dma_chan.device)->ops; - irqreturn_t ret; - - spin_lock(&schan->chan_lock); - - ret = ops->chan_irq(schan, irq) ? IRQ_WAKE_THREAD : IRQ_NONE; - - spin_unlock(&schan->chan_lock); - - return ret; -} - -static irqreturn_t chan_irqt(int irq, void *dev) -{ - struct shdma_chan *schan = dev; - const struct shdma_ops *ops = - to_shdma_dev(schan->dma_chan.device)->ops; - struct shdma_desc *sdesc; - - spin_lock_irq(&schan->chan_lock); - list_for_each_entry(sdesc, &schan->ld_queue, node) { - if (sdesc->mark == DESC_SUBMITTED && - ops->desc_completed(schan, sdesc)) { - dev_dbg(schan->dev, "done #%d@%p\n", - sdesc->async_tx.cookie, &sdesc->async_tx); - sdesc->mark = DESC_COMPLETED; - break; - } - } - /* Next desc */ - shdma_chan_xfer_ld_queue(schan); - spin_unlock_irq(&schan->chan_lock); - - shdma_chan_ld_cleanup(schan, false); - - return IRQ_HANDLED; -} - -int shdma_request_irq(struct shdma_chan *schan, int irq, - unsigned long flags, const char *name) -{ - int ret = devm_request_threaded_irq(schan->dev, irq, chan_irq, - chan_irqt, flags, name, schan); - - schan->irq = ret < 0 ? ret : irq; - - return ret; -} -EXPORT_SYMBOL(shdma_request_irq); - -void shdma_chan_probe(struct shdma_dev *sdev, - struct shdma_chan *schan, int id) -{ - schan->pm_state = SHDMA_PM_ESTABLISHED; - - /* reference struct dma_device */ - schan->dma_chan.device = &sdev->dma_dev; - dma_cookie_init(&schan->dma_chan); - - schan->dev = sdev->dma_dev.dev; - schan->id = id; - - if (!schan->max_xfer_len) - schan->max_xfer_len = PAGE_SIZE; - - spin_lock_init(&schan->chan_lock); - - /* Init descripter manage list */ - INIT_LIST_HEAD(&schan->ld_queue); - INIT_LIST_HEAD(&schan->ld_free); - - /* Add the channel to DMA device channel list */ - list_add_tail(&schan->dma_chan.device_node, - &sdev->dma_dev.channels); - sdev->schan[id] = schan; -} -EXPORT_SYMBOL(shdma_chan_probe); - -void shdma_chan_remove(struct shdma_chan *schan) -{ - list_del(&schan->dma_chan.device_node); -} -EXPORT_SYMBOL(shdma_chan_remove); - -int shdma_init(struct device *dev, struct shdma_dev *sdev, - int chan_num) -{ - struct dma_device *dma_dev = &sdev->dma_dev; - - /* - * Require all call-backs for now, they can trivially be made optional - * later as required - */ - if (!sdev->ops || - !sdev->desc_size || - !sdev->ops->embedded_desc || - !sdev->ops->start_xfer || - !sdev->ops->setup_xfer || - !sdev->ops->set_slave || - !sdev->ops->desc_setup || - !sdev->ops->slave_addr || - !sdev->ops->channel_busy || - !sdev->ops->halt_channel || - !sdev->ops->desc_completed) - return -EINVAL; - - sdev->schan = kcalloc(chan_num, sizeof(*sdev->schan), GFP_KERNEL); - if (!sdev->schan) - return -ENOMEM; - - INIT_LIST_HEAD(&dma_dev->channels); - - /* Common and MEMCPY operations */ - dma_dev->device_alloc_chan_resources - = shdma_alloc_chan_resources; - dma_dev->device_free_chan_resources = shdma_free_chan_resources; - dma_dev->device_prep_dma_memcpy = shdma_prep_memcpy; - dma_dev->device_tx_status = shdma_tx_status; - dma_dev->device_issue_pending = shdma_issue_pending; - - /* Compulsory for DMA_SLAVE fields */ - dma_dev->device_prep_slave_sg = shdma_prep_slave_sg; - dma_dev->device_prep_dma_cyclic = shdma_prep_dma_cyclic; - dma_dev->device_config = shdma_config; - dma_dev->device_terminate_all = shdma_terminate_all; - - dma_dev->dev = dev; - - return 0; -} -EXPORT_SYMBOL(shdma_init); - -void shdma_cleanup(struct shdma_dev *sdev) -{ - kfree(sdev->schan); -} -EXPORT_SYMBOL(shdma_cleanup); - -static int __init shdma_enter(void) -{ - shdma_slave_used = bitmap_zalloc(slave_num, GFP_KERNEL); - if (!shdma_slave_used) - return -ENOMEM; - return 0; -} -module_init(shdma_enter); - -static void __exit shdma_exit(void) -{ - bitmap_free(shdma_slave_used); -} -module_exit(shdma_exit); - -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("SH-DMA driver base library"); -MODULE_AUTHOR("Guennadi Liakhovetski "); diff --git a/drivers/dma/sh/shdma.h b/drivers/dma/sh/shdma.h deleted file mode 100644 index 9c121a4b33ad82..00000000000000 --- a/drivers/dma/sh/shdma.h +++ /dev/null @@ -1,61 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0+ */ -/* - * Renesas SuperH DMA Engine support - * - * Copyright (C) 2009 Nobuhiro Iwamatsu - * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved. - * - */ -#ifndef __DMA_SHDMA_H -#define __DMA_SHDMA_H - -#include -#include -#include -#include -#include - -#define SH_DMAE_MAX_CHANNELS 20 -#define SH_DMAE_TCR_MAX 0x00FFFFFF /* 16MB */ - -struct device; - -struct sh_dmae_chan { - struct shdma_chan shdma_chan; - const struct sh_dmae_slave_config *config; /* Slave DMA configuration */ - int xmit_shift; /* log_2(bytes_per_xfer) */ - void __iomem *base; - char dev_id[16]; /* unique name per DMAC of channel */ - int pm_error; - dma_addr_t slave_addr; -}; - -struct sh_dmae_device { - struct shdma_dev shdma_dev; - struct sh_dmae_chan *chan[SH_DMAE_MAX_CHANNELS]; - const struct sh_dmae_pdata *pdata; - struct list_head node; - void __iomem *chan_reg; - void __iomem *dmars; - unsigned int chcr_offset; - u32 chcr_ie_bit; -}; - -struct sh_dmae_regs { - u32 sar; /* SAR / source address */ - u32 dar; /* DAR / destination address */ - u32 tcr; /* TCR / transfer count */ -}; - -struct sh_dmae_desc { - struct sh_dmae_regs hw; - struct shdma_desc shdma_desc; -}; - -#define to_sh_chan(chan) container_of(chan, struct sh_dmae_chan, shdma_chan) -#define to_sh_desc(lh) container_of(lh, struct sh_desc, node) -#define tx_to_sh_desc(tx) container_of(tx, struct sh_desc, async_tx) -#define to_sh_dev(chan) container_of(chan->shdma_chan.dma_chan.device,\ - struct sh_dmae_device, shdma_dev.dma_dev) - -#endif /* __DMA_SHDMA_H */ diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c deleted file mode 100644 index 5aafe548ca5f30..00000000000000 --- a/drivers/dma/sh/shdmac.c +++ /dev/null @@ -1,938 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Renesas SuperH DMA Engine support - * - * base is drivers/dma/flsdma.c - * - * Copyright (C) 2011-2012 Guennadi Liakhovetski - * Copyright (C) 2009 Nobuhiro Iwamatsu - * Copyright (C) 2009 Renesas Solutions, Inc. All rights reserved. - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved. - * - * - DMA of SuperH does not have Hardware DMA chain mode. - * - MAX DMA size is 16MB. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "../dmaengine.h" -#include "shdma.h" - -/* DMA registers */ -#define SAR 0x00 /* Source Address Register */ -#define DAR 0x04 /* Destination Address Register */ -#define TCR 0x08 /* Transfer Count Register */ -#define CHCR 0x0C /* Channel Control Register */ -#define DMAOR 0x40 /* DMA Operation Register */ - -#define TEND 0x18 /* USB-DMAC */ - -#define SH_DMAE_DRV_NAME "sh-dma-engine" - -/* Default MEMCPY transfer size = 2^2 = 4 bytes */ -#define LOG2_DEFAULT_XFER_SIZE 2 -#define SH_DMA_SLAVE_NUMBER 256 -#define SH_DMA_TCR_MAX (16 * 1024 * 1024 - 1) - -/* - * Used for write-side mutual exclusion for the global device list, - * read-side synchronization by way of RCU, and per-controller data. - */ -static DEFINE_SPINLOCK(sh_dmae_lock); -static LIST_HEAD(sh_dmae_devices); - -/* - * Different DMAC implementations provide different ways to clear DMA channels: - * (1) none - no CHCLR registers are available - * (2) one CHCLR register per channel - 0 has to be written to it to clear - * channel buffers - * (3) one CHCLR per several channels - 1 has to be written to the bit, - * corresponding to the specific channel to reset it - */ -static void channel_clear(struct sh_dmae_chan *sh_dc) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_dc); - const struct sh_dmae_channel *chan_pdata = shdev->pdata->channel + - sh_dc->shdma_chan.id; - u32 val = shdev->pdata->chclr_bitwise ? 1 << chan_pdata->chclr_bit : 0; - - __raw_writel(val, shdev->chan_reg + chan_pdata->chclr_offset); -} - -static void sh_dmae_writel(struct sh_dmae_chan *sh_dc, u32 data, u32 reg) -{ - __raw_writel(data, sh_dc->base + reg); -} - -static u32 sh_dmae_readl(struct sh_dmae_chan *sh_dc, u32 reg) -{ - return __raw_readl(sh_dc->base + reg); -} - -static u16 dmaor_read(struct sh_dmae_device *shdev) -{ - void __iomem *addr = shdev->chan_reg + DMAOR; - - if (shdev->pdata->dmaor_is_32bit) - return __raw_readl(addr); - else - return __raw_readw(addr); -} - -static void dmaor_write(struct sh_dmae_device *shdev, u16 data) -{ - void __iomem *addr = shdev->chan_reg + DMAOR; - - if (shdev->pdata->dmaor_is_32bit) - __raw_writel(data, addr); - else - __raw_writew(data, addr); -} - -static void chcr_write(struct sh_dmae_chan *sh_dc, u32 data) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_dc); - - __raw_writel(data, sh_dc->base + shdev->chcr_offset); -} - -static u32 chcr_read(struct sh_dmae_chan *sh_dc) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_dc); - - return __raw_readl(sh_dc->base + shdev->chcr_offset); -} - -/* - * Reset DMA controller - * - * SH7780 has two DMAOR register - */ -static void sh_dmae_ctl_stop(struct sh_dmae_device *shdev) -{ - unsigned short dmaor; - unsigned long flags; - - spin_lock_irqsave(&sh_dmae_lock, flags); - - dmaor = dmaor_read(shdev); - dmaor_write(shdev, dmaor & ~(DMAOR_NMIF | DMAOR_AE | DMAOR_DME)); - - spin_unlock_irqrestore(&sh_dmae_lock, flags); -} - -static int sh_dmae_rst(struct sh_dmae_device *shdev) -{ - unsigned short dmaor; - unsigned long flags; - - spin_lock_irqsave(&sh_dmae_lock, flags); - - dmaor = dmaor_read(shdev) & ~(DMAOR_NMIF | DMAOR_AE | DMAOR_DME); - - if (shdev->pdata->chclr_present) { - int i; - for (i = 0; i < shdev->pdata->channel_num; i++) { - struct sh_dmae_chan *sh_chan = shdev->chan[i]; - if (sh_chan) - channel_clear(sh_chan); - } - } - - dmaor_write(shdev, dmaor | shdev->pdata->dmaor_init); - - dmaor = dmaor_read(shdev); - - spin_unlock_irqrestore(&sh_dmae_lock, flags); - - if (dmaor & (DMAOR_AE | DMAOR_NMIF)) { - dev_warn(shdev->shdma_dev.dma_dev.dev, "Can't initialize DMAOR.\n"); - return -EIO; - } - if (shdev->pdata->dmaor_init & ~dmaor) - dev_warn(shdev->shdma_dev.dma_dev.dev, - "DMAOR=0x%x hasn't latched the initial value 0x%x.\n", - dmaor, shdev->pdata->dmaor_init); - return 0; -} - -static bool dmae_is_busy(struct sh_dmae_chan *sh_chan) -{ - u32 chcr = chcr_read(sh_chan); - - if ((chcr & (CHCR_DE | CHCR_TE)) == CHCR_DE) - return true; /* working */ - - return false; /* waiting */ -} - -static unsigned int calc_xmit_shift(struct sh_dmae_chan *sh_chan, u32 chcr) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - const struct sh_dmae_pdata *pdata = shdev->pdata; - int cnt = ((chcr & pdata->ts_low_mask) >> pdata->ts_low_shift) | - ((chcr & pdata->ts_high_mask) >> pdata->ts_high_shift); - - if (cnt >= pdata->ts_shift_num) - cnt = 0; - - return pdata->ts_shift[cnt]; -} - -static u32 log2size_to_chcr(struct sh_dmae_chan *sh_chan, int l2size) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - const struct sh_dmae_pdata *pdata = shdev->pdata; - int i; - - for (i = 0; i < pdata->ts_shift_num; i++) - if (pdata->ts_shift[i] == l2size) - break; - - if (i == pdata->ts_shift_num) - i = 0; - - return ((i << pdata->ts_low_shift) & pdata->ts_low_mask) | - ((i << pdata->ts_high_shift) & pdata->ts_high_mask); -} - -static void dmae_set_reg(struct sh_dmae_chan *sh_chan, struct sh_dmae_regs *hw) -{ - sh_dmae_writel(sh_chan, hw->sar, SAR); - sh_dmae_writel(sh_chan, hw->dar, DAR); - sh_dmae_writel(sh_chan, hw->tcr >> sh_chan->xmit_shift, TCR); -} - -static void dmae_start(struct sh_dmae_chan *sh_chan) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - u32 chcr = chcr_read(sh_chan); - - if (shdev->pdata->needs_tend_set) - sh_dmae_writel(sh_chan, 0xFFFFFFFF, TEND); - - chcr |= CHCR_DE | shdev->chcr_ie_bit; - chcr_write(sh_chan, chcr & ~CHCR_TE); -} - -static void dmae_init(struct sh_dmae_chan *sh_chan) -{ - /* - * Default configuration for dual address memory-memory transfer. - */ - u32 chcr = DM_INC | SM_INC | RS_AUTO | log2size_to_chcr(sh_chan, - LOG2_DEFAULT_XFER_SIZE); - sh_chan->xmit_shift = calc_xmit_shift(sh_chan, chcr); - chcr_write(sh_chan, chcr); -} - -static int dmae_set_chcr(struct sh_dmae_chan *sh_chan, u32 val) -{ - /* If DMA is active, cannot set CHCR. TODO: remove this superfluous check */ - if (dmae_is_busy(sh_chan)) - return -EBUSY; - - sh_chan->xmit_shift = calc_xmit_shift(sh_chan, val); - chcr_write(sh_chan, val); - - return 0; -} - -static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - const struct sh_dmae_pdata *pdata = shdev->pdata; - const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->shdma_chan.id]; - void __iomem *addr = shdev->dmars; - unsigned int shift = chan_pdata->dmars_bit; - - if (dmae_is_busy(sh_chan)) - return -EBUSY; - - if (pdata->no_dmars) - return 0; - - /* in the case of a missing DMARS resource use first memory window */ - if (!addr) - addr = shdev->chan_reg; - addr += chan_pdata->dmars; - - __raw_writew((__raw_readw(addr) & (0xff00 >> shift)) | (val << shift), - addr); - - return 0; -} - -static void sh_dmae_start_xfer(struct shdma_chan *schan, - struct shdma_desc *sdesc) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - struct sh_dmae_desc *sh_desc = container_of(sdesc, - struct sh_dmae_desc, shdma_desc); - dev_dbg(sh_chan->shdma_chan.dev, "Queue #%d to %d: %u@%x -> %x\n", - sdesc->async_tx.cookie, sh_chan->shdma_chan.id, - sh_desc->hw.tcr, sh_desc->hw.sar, sh_desc->hw.dar); - /* Get the ld start address from ld_queue */ - dmae_set_reg(sh_chan, &sh_desc->hw); - dmae_start(sh_chan); -} - -static bool sh_dmae_channel_busy(struct shdma_chan *schan) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - return dmae_is_busy(sh_chan); -} - -static void sh_dmae_setup_xfer(struct shdma_chan *schan, - int slave_id) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - - if (slave_id >= 0) { - const struct sh_dmae_slave_config *cfg = - sh_chan->config; - - dmae_set_dmars(sh_chan, cfg->mid_rid); - dmae_set_chcr(sh_chan, cfg->chcr); - } else { - dmae_init(sh_chan); - } -} - -/* - * Find a slave channel configuration from the contoller list by either a slave - * ID in the non-DT case, or by a MID/RID value in the DT case - */ -static const struct sh_dmae_slave_config *dmae_find_slave( - struct sh_dmae_chan *sh_chan, int match) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - const struct sh_dmae_pdata *pdata = shdev->pdata; - const struct sh_dmae_slave_config *cfg; - int i; - - if (!sh_chan->shdma_chan.dev->of_node) { - if (match >= SH_DMA_SLAVE_NUMBER) - return NULL; - - for (i = 0, cfg = pdata->slave; i < pdata->slave_num; i++, cfg++) - if (cfg->slave_id == match) - return cfg; - } else { - for (i = 0, cfg = pdata->slave; i < pdata->slave_num; i++, cfg++) - if (cfg->mid_rid == match) { - sh_chan->shdma_chan.slave_id = i; - return cfg; - } - } - - return NULL; -} - -static int sh_dmae_set_slave(struct shdma_chan *schan, - int slave_id, dma_addr_t slave_addr, bool try) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - const struct sh_dmae_slave_config *cfg = dmae_find_slave(sh_chan, slave_id); - if (!cfg) - return -ENXIO; - - if (!try) { - sh_chan->config = cfg; - sh_chan->slave_addr = slave_addr ? : cfg->addr; - } - - return 0; -} - -static void dmae_halt(struct sh_dmae_chan *sh_chan) -{ - struct sh_dmae_device *shdev = to_sh_dev(sh_chan); - u32 chcr = chcr_read(sh_chan); - - chcr &= ~(CHCR_DE | CHCR_TE | shdev->chcr_ie_bit); - chcr_write(sh_chan, chcr); -} - -static int sh_dmae_desc_setup(struct shdma_chan *schan, - struct shdma_desc *sdesc, - dma_addr_t src, dma_addr_t dst, size_t *len) -{ - struct sh_dmae_desc *sh_desc = container_of(sdesc, - struct sh_dmae_desc, shdma_desc); - - if (*len > schan->max_xfer_len) - *len = schan->max_xfer_len; - - sh_desc->hw.sar = src; - sh_desc->hw.dar = dst; - sh_desc->hw.tcr = *len; - - return 0; -} - -static void sh_dmae_halt(struct shdma_chan *schan) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - dmae_halt(sh_chan); -} - -static bool sh_dmae_chan_irq(struct shdma_chan *schan, int irq) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - - if (!(chcr_read(sh_chan) & CHCR_TE)) - return false; - - /* DMA stop */ - dmae_halt(sh_chan); - - return true; -} - -static size_t sh_dmae_get_partial(struct shdma_chan *schan, - struct shdma_desc *sdesc) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, struct sh_dmae_chan, - shdma_chan); - struct sh_dmae_desc *sh_desc = container_of(sdesc, - struct sh_dmae_desc, shdma_desc); - return sh_desc->hw.tcr - - (sh_dmae_readl(sh_chan, TCR) << sh_chan->xmit_shift); -} - -/* Called from error IRQ or NMI */ -static bool sh_dmae_reset(struct sh_dmae_device *shdev) -{ - bool ret; - - /* halt the dma controller */ - sh_dmae_ctl_stop(shdev); - - /* We cannot detect, which channel caused the error, have to reset all */ - ret = shdma_reset(&shdev->shdma_dev); - - sh_dmae_rst(shdev); - - return ret; -} - -static irqreturn_t sh_dmae_err(int irq, void *data) -{ - struct sh_dmae_device *shdev = data; - - if (!(dmaor_read(shdev) & DMAOR_AE)) - return IRQ_NONE; - - sh_dmae_reset(shdev); - return IRQ_HANDLED; -} - -static bool sh_dmae_desc_completed(struct shdma_chan *schan, - struct shdma_desc *sdesc) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, - struct sh_dmae_chan, shdma_chan); - struct sh_dmae_desc *sh_desc = container_of(sdesc, - struct sh_dmae_desc, shdma_desc); - u32 sar_buf = sh_dmae_readl(sh_chan, SAR); - u32 dar_buf = sh_dmae_readl(sh_chan, DAR); - - return (sdesc->direction == DMA_DEV_TO_MEM && - (sh_desc->hw.dar + sh_desc->hw.tcr) == dar_buf) || - (sdesc->direction != DMA_DEV_TO_MEM && - (sh_desc->hw.sar + sh_desc->hw.tcr) == sar_buf); -} - -static bool sh_dmae_nmi_notify(struct sh_dmae_device *shdev) -{ - /* Fast path out if NMIF is not asserted for this controller */ - if ((dmaor_read(shdev) & DMAOR_NMIF) == 0) - return false; - - return sh_dmae_reset(shdev); -} - -static int sh_dmae_nmi_handler(struct notifier_block *self, - unsigned long cmd, void *data) -{ - struct sh_dmae_device *shdev; - int ret = NOTIFY_DONE; - bool triggered; - - /* - * Only concern ourselves with NMI events. - * - * Normally we would check the die chain value, but as this needs - * to be architecture independent, check for NMI context instead. - */ - if (!in_nmi()) - return NOTIFY_DONE; - - rcu_read_lock(); - list_for_each_entry_rcu(shdev, &sh_dmae_devices, node) { - /* - * Only stop if one of the controllers has NMIF asserted, - * we do not want to interfere with regular address error - * handling or NMI events that don't concern the DMACs. - */ - triggered = sh_dmae_nmi_notify(shdev); - if (triggered == true) - ret = NOTIFY_OK; - } - rcu_read_unlock(); - - return ret; -} - -static struct notifier_block sh_dmae_nmi_notifier __read_mostly = { - .notifier_call = sh_dmae_nmi_handler, - - /* Run before NMI debug handler and KGDB */ - .priority = 1, -}; - -static int sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id, - int irq, unsigned long flags) -{ - const struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id]; - struct shdma_dev *sdev = &shdev->shdma_dev; - struct platform_device *pdev = to_platform_device(sdev->dma_dev.dev); - struct sh_dmae_chan *sh_chan; - struct shdma_chan *schan; - int err; - - sh_chan = devm_kzalloc(sdev->dma_dev.dev, sizeof(struct sh_dmae_chan), - GFP_KERNEL); - if (!sh_chan) - return -ENOMEM; - - schan = &sh_chan->shdma_chan; - schan->max_xfer_len = SH_DMA_TCR_MAX + 1; - - shdma_chan_probe(sdev, schan, id); - - sh_chan->base = shdev->chan_reg + chan_pdata->offset; - - /* set up channel irq */ - if (pdev->id >= 0) - snprintf(sh_chan->dev_id, sizeof(sh_chan->dev_id), - "sh-dmae%d.%d", pdev->id, id); - else - snprintf(sh_chan->dev_id, sizeof(sh_chan->dev_id), - "sh-dma%d", id); - - err = shdma_request_irq(schan, irq, flags, sh_chan->dev_id); - if (err) { - dev_err(sdev->dma_dev.dev, - "DMA channel %d request_irq error %d\n", - id, err); - goto err_no_irq; - } - - shdev->chan[id] = sh_chan; - return 0; - -err_no_irq: - /* remove from dmaengine device node */ - shdma_chan_remove(schan); - return err; -} - -static void sh_dmae_chan_remove(struct sh_dmae_device *shdev) -{ - struct shdma_chan *schan; - int i; - - shdma_for_each_chan(schan, &shdev->shdma_dev, i) { - BUG_ON(!schan); - - shdma_chan_remove(schan); - } -} - -#ifdef CONFIG_PM -static int sh_dmae_runtime_suspend(struct device *dev) -{ - struct sh_dmae_device *shdev = dev_get_drvdata(dev); - - sh_dmae_ctl_stop(shdev); - return 0; -} - -static int sh_dmae_runtime_resume(struct device *dev) -{ - struct sh_dmae_device *shdev = dev_get_drvdata(dev); - - return sh_dmae_rst(shdev); -} -#endif - -#ifdef CONFIG_PM_SLEEP -static int sh_dmae_suspend(struct device *dev) -{ - struct sh_dmae_device *shdev = dev_get_drvdata(dev); - - sh_dmae_ctl_stop(shdev); - return 0; -} - -static int sh_dmae_resume(struct device *dev) -{ - struct sh_dmae_device *shdev = dev_get_drvdata(dev); - int i, ret; - - ret = sh_dmae_rst(shdev); - if (ret < 0) - dev_err(dev, "Failed to reset!\n"); - - for (i = 0; i < shdev->pdata->channel_num; i++) { - struct sh_dmae_chan *sh_chan = shdev->chan[i]; - - if (!sh_chan->shdma_chan.desc_num) - continue; - - if (sh_chan->shdma_chan.slave_id >= 0) { - const struct sh_dmae_slave_config *cfg = sh_chan->config; - dmae_set_dmars(sh_chan, cfg->mid_rid); - dmae_set_chcr(sh_chan, cfg->chcr); - } else { - dmae_init(sh_chan); - } - } - - return 0; -} -#endif - -static const struct dev_pm_ops sh_dmae_pm = { - SET_SYSTEM_SLEEP_PM_OPS(sh_dmae_suspend, sh_dmae_resume) - SET_RUNTIME_PM_OPS(sh_dmae_runtime_suspend, sh_dmae_runtime_resume, - NULL) -}; - -static dma_addr_t sh_dmae_slave_addr(struct shdma_chan *schan) -{ - struct sh_dmae_chan *sh_chan = container_of(schan, - struct sh_dmae_chan, shdma_chan); - - /* - * Implicit BUG_ON(!sh_chan->config) - * This is an exclusive slave DMA operation, may only be called after a - * successful slave configuration. - */ - return sh_chan->slave_addr; -} - -static struct shdma_desc *sh_dmae_embedded_desc(void *buf, int i) -{ - return &((struct sh_dmae_desc *)buf)[i].shdma_desc; -} - -static const struct shdma_ops sh_dmae_shdma_ops = { - .desc_completed = sh_dmae_desc_completed, - .halt_channel = sh_dmae_halt, - .channel_busy = sh_dmae_channel_busy, - .slave_addr = sh_dmae_slave_addr, - .desc_setup = sh_dmae_desc_setup, - .set_slave = sh_dmae_set_slave, - .setup_xfer = sh_dmae_setup_xfer, - .start_xfer = sh_dmae_start_xfer, - .embedded_desc = sh_dmae_embedded_desc, - .chan_irq = sh_dmae_chan_irq, - .get_partial = sh_dmae_get_partial, -}; - -static int sh_dmae_probe(struct platform_device *pdev) -{ - const enum dma_slave_buswidth widths = - DMA_SLAVE_BUSWIDTH_1_BYTE | DMA_SLAVE_BUSWIDTH_2_BYTES | - DMA_SLAVE_BUSWIDTH_4_BYTES | DMA_SLAVE_BUSWIDTH_8_BYTES | - DMA_SLAVE_BUSWIDTH_16_BYTES | DMA_SLAVE_BUSWIDTH_32_BYTES; - const struct sh_dmae_pdata *pdata; - unsigned long chan_flag[SH_DMAE_MAX_CHANNELS] = {}; - int chan_irq[SH_DMAE_MAX_CHANNELS]; - unsigned long irqflags = 0; - int err, errirq, i, irq_cnt = 0, irqres = 0, irq_cap = 0; - struct sh_dmae_device *shdev; - struct dma_device *dma_dev; - struct resource *chan, *dmars, *errirq_res, *chanirq_res; - - if (pdev->dev.of_node) - pdata = of_device_get_match_data(&pdev->dev); - else - pdata = dev_get_platdata(&pdev->dev); - - /* get platform data */ - if (!pdata || !pdata->channel_num) - return -ENODEV; - - chan = platform_get_resource(pdev, IORESOURCE_MEM, 0); - /* DMARS area is optional */ - dmars = platform_get_resource(pdev, IORESOURCE_MEM, 1); - /* - * IRQ resources: - * 1. there always must be at least one IRQ IO-resource. On SH4 it is - * the error IRQ, in which case it is the only IRQ in this resource: - * start == end. If it is the only IRQ resource, all channels also - * use the same IRQ. - * 2. DMA channel IRQ resources can be specified one per resource or in - * ranges (start != end) - * 3. iff all events (channels and, optionally, error) on this - * controller use the same IRQ, only one IRQ resource can be - * specified, otherwise there must be one IRQ per channel, even if - * some of them are equal - * 4. if all IRQs on this controller are equal or if some specific IRQs - * specify IORESOURCE_IRQ_SHAREABLE in their resources, they will be - * requested with the IRQF_SHARED flag - */ - errirq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!chan || !errirq_res) - return -ENODEV; - - shdev = devm_kzalloc(&pdev->dev, sizeof(struct sh_dmae_device), - GFP_KERNEL); - if (!shdev) - return -ENOMEM; - - dma_dev = &shdev->shdma_dev.dma_dev; - - shdev->chan_reg = devm_ioremap_resource(&pdev->dev, chan); - if (IS_ERR(shdev->chan_reg)) - return PTR_ERR(shdev->chan_reg); - if (dmars) { - shdev->dmars = devm_ioremap_resource(&pdev->dev, dmars); - if (IS_ERR(shdev->dmars)) - return PTR_ERR(shdev->dmars); - } - - dma_dev->src_addr_widths = widths; - dma_dev->dst_addr_widths = widths; - dma_dev->directions = BIT(DMA_MEM_TO_DEV) | BIT(DMA_DEV_TO_MEM); - dma_dev->residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR; - - if (!pdata->slave_only) - dma_cap_set(DMA_MEMCPY, dma_dev->cap_mask); - if (pdata->slave && pdata->slave_num) - dma_cap_set(DMA_SLAVE, dma_dev->cap_mask); - - /* Default transfer size of 32 bytes requires 32-byte alignment */ - dma_dev->copy_align = LOG2_DEFAULT_XFER_SIZE; - - shdev->shdma_dev.ops = &sh_dmae_shdma_ops; - shdev->shdma_dev.desc_size = sizeof(struct sh_dmae_desc); - err = shdma_init(&pdev->dev, &shdev->shdma_dev, - pdata->channel_num); - if (err < 0) - goto eshdma; - - /* platform data */ - shdev->pdata = pdata; - - if (pdata->chcr_offset) - shdev->chcr_offset = pdata->chcr_offset; - else - shdev->chcr_offset = CHCR; - - if (pdata->chcr_ie_bit) - shdev->chcr_ie_bit = pdata->chcr_ie_bit; - else - shdev->chcr_ie_bit = CHCR_IE; - - platform_set_drvdata(pdev, shdev); - - pm_runtime_enable(&pdev->dev); - err = pm_runtime_get_sync(&pdev->dev); - if (err < 0) - dev_err(&pdev->dev, "%s(): GET = %d\n", __func__, err); - - spin_lock_irq(&sh_dmae_lock); - list_add_tail_rcu(&shdev->node, &sh_dmae_devices); - spin_unlock_irq(&sh_dmae_lock); - - /* reset dma controller - only needed as a test */ - err = sh_dmae_rst(shdev); - if (err) - goto rst_err; - - if (IS_ENABLED(CONFIG_CPU_SH4) || IS_ENABLED(CONFIG_ARCH_RENESAS)) { - chanirq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 1); - - if (!chanirq_res) - chanirq_res = errirq_res; - else - irqres++; - - if (chanirq_res == errirq_res || - (errirq_res->flags & IORESOURCE_BITS) == IORESOURCE_IRQ_SHAREABLE) - irqflags = IRQF_SHARED; - - errirq = errirq_res->start; - - err = devm_request_irq(&pdev->dev, errirq, sh_dmae_err, - irqflags, "DMAC Address Error", shdev); - if (err) { - dev_err(&pdev->dev, - "DMA failed requesting irq #%d, error %d\n", - errirq, err); - goto eirq_err; - } - } else { - chanirq_res = errirq_res; - } - - if (chanirq_res->start == chanirq_res->end && - !platform_get_resource(pdev, IORESOURCE_IRQ, 1)) { - /* Special case - all multiplexed */ - for (; irq_cnt < pdata->channel_num; irq_cnt++) { - if (irq_cnt < SH_DMAE_MAX_CHANNELS) { - chan_irq[irq_cnt] = chanirq_res->start; - chan_flag[irq_cnt] = IRQF_SHARED; - } else { - irq_cap = 1; - break; - } - } - } else { - do { - for (i = chanirq_res->start; i <= chanirq_res->end; i++) { - if (irq_cnt >= SH_DMAE_MAX_CHANNELS) { - irq_cap = 1; - break; - } - - if ((errirq_res->flags & IORESOURCE_BITS) == - IORESOURCE_IRQ_SHAREABLE) - chan_flag[irq_cnt] = IRQF_SHARED; - else - chan_flag[irq_cnt] = 0; - dev_dbg(&pdev->dev, - "Found IRQ %d for channel %d\n", - i, irq_cnt); - chan_irq[irq_cnt++] = i; - } - - if (irq_cnt >= SH_DMAE_MAX_CHANNELS) - break; - - chanirq_res = platform_get_resource(pdev, - IORESOURCE_IRQ, ++irqres); - } while (irq_cnt < pdata->channel_num && chanirq_res); - } - - /* Create DMA Channel */ - for (i = 0; i < irq_cnt; i++) { - err = sh_dmae_chan_probe(shdev, i, chan_irq[i], chan_flag[i]); - if (err) - goto chan_probe_err; - } - - if (irq_cap) - dev_notice(&pdev->dev, "Attempting to register %d DMA " - "channels when a maximum of %d are supported.\n", - pdata->channel_num, SH_DMAE_MAX_CHANNELS); - - pm_runtime_put(&pdev->dev); - - err = dma_async_device_register(&shdev->shdma_dev.dma_dev); - if (err < 0) - goto edmadevreg; - - return err; - -edmadevreg: - pm_runtime_get(&pdev->dev); - -chan_probe_err: - sh_dmae_chan_remove(shdev); - -eirq_err: -rst_err: - spin_lock_irq(&sh_dmae_lock); - list_del_rcu(&shdev->node); - spin_unlock_irq(&sh_dmae_lock); - - pm_runtime_put(&pdev->dev); - pm_runtime_disable(&pdev->dev); - - shdma_cleanup(&shdev->shdma_dev); -eshdma: - synchronize_rcu(); - - return err; -} - -static int sh_dmae_remove(struct platform_device *pdev) -{ - struct sh_dmae_device *shdev = platform_get_drvdata(pdev); - struct dma_device *dma_dev = &shdev->shdma_dev.dma_dev; - - dma_async_device_unregister(dma_dev); - - spin_lock_irq(&sh_dmae_lock); - list_del_rcu(&shdev->node); - spin_unlock_irq(&sh_dmae_lock); - - pm_runtime_disable(&pdev->dev); - - sh_dmae_chan_remove(shdev); - shdma_cleanup(&shdev->shdma_dev); - - synchronize_rcu(); - - return 0; -} - -static struct platform_driver sh_dmae_driver = { - .driver = { - .pm = &sh_dmae_pm, - .name = SH_DMAE_DRV_NAME, - }, - .remove = sh_dmae_remove, -}; - -static int __init sh_dmae_init(void) -{ - /* Wire up NMI handling */ - int err = register_die_notifier(&sh_dmae_nmi_notifier); - if (err) - return err; - - return platform_driver_probe(&sh_dmae_driver, sh_dmae_probe); -} -module_init(sh_dmae_init); - -static void __exit sh_dmae_exit(void) -{ - platform_driver_unregister(&sh_dmae_driver); - - unregister_die_notifier(&sh_dmae_nmi_notifier); -} -module_exit(sh_dmae_exit); - -MODULE_AUTHOR("Nobuhiro Iwamatsu "); -MODULE_DESCRIPTION("Renesas SH DMA Engine driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" SH_DMAE_DRV_NAME); diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h index 6dfd05ef5c2d9f..dd32aba344757f 100644 --- a/include/linux/shdma-base.h +++ b/include/linux/shdma-base.h @@ -122,13 +122,9 @@ void shdma_chan_remove(struct shdma_chan *schan); int shdma_init(struct device *dev, struct shdma_dev *sdev, int chan_num); void shdma_cleanup(struct shdma_dev *sdev); -#if IS_ENABLED(CONFIG_SH_DMAE_BASE) -bool shdma_chan_filter(struct dma_chan *chan, void *arg); -#else static inline bool shdma_chan_filter(struct dma_chan *chan, void *arg) { return false; } -#endif #endif From patchwork Fri Jan 13 06:23:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642579 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93E05C678DC for ; Fri, 13 Jan 2023 06:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239917AbjAMG2e (ORCPT ); Fri, 13 Jan 2023 01:28:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239960AbjAMGZF (ORCPT ); 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Fri, 13 Jan 2023 06:24:16 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 09/22] i2c: remove i2c-sh7760 Date: Fri, 13 Jan 2023 07:23:26 +0100 Message-Id: <20230113062339.1909087-10-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/i2c/busses/Kconfig | 9 - drivers/i2c/busses/Makefile | 1 - drivers/i2c/busses/i2c-sh7760.c | 565 -------------------------------- 3 files changed, 575 deletions(-) delete mode 100644 drivers/i2c/busses/i2c-sh7760.c diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 22602c512a6e50..44267a023fd19a 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -1016,15 +1016,6 @@ config I2C_S3C2410 Say Y here to include support for I2C controller in the Samsung SoCs (S3C, S5Pv210, Exynos). -config I2C_SH7760 - tristate "Renesas SH7760 I2C Controller" - depends on CPU_SUBTYPE_SH7760 - help - This driver supports the 2 I2C interfaces on the Renesas SH7760. - - This driver can also be built as a module. If so, the module - will be called i2c-sh7760. - config I2C_SH_MOBILE tristate "SuperH Mobile I2C Controller" depends on ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile index e73cdb1d2b5a85..6be213e5e4dd16 100644 --- a/drivers/i2c/busses/Makefile +++ b/drivers/i2c/busses/Makefile @@ -104,7 +104,6 @@ obj-$(CONFIG_I2C_RIIC) += i2c-riic.o obj-$(CONFIG_I2C_RK3X) += i2c-rk3x.o obj-$(CONFIG_I2C_RZV2M) += i2c-rzv2m.o obj-$(CONFIG_I2C_S3C2410) += i2c-s3c2410.o -obj-$(CONFIG_I2C_SH7760) += i2c-sh7760.o obj-$(CONFIG_I2C_SH_MOBILE) += i2c-sh_mobile.o obj-$(CONFIG_I2C_SIMTEC) += i2c-simtec.o obj-$(CONFIG_I2C_SPRD) += i2c-sprd.o diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c deleted file mode 100644 index 319d1fa617c883..00000000000000 --- a/drivers/i2c/busses/i2c-sh7760.c +++ /dev/null @@ -1,565 +0,0 @@ -/* - * I2C bus driver for the SH7760 I2C Interfaces. - * - * (c) 2005-2008 MSC Vertriebsges.m.b.H, Manuel Lauss - * - * licensed under the terms outlined in the file COPYING. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -/* register offsets */ -#define I2CSCR 0x0 /* slave ctrl */ -#define I2CMCR 0x4 /* master ctrl */ -#define I2CSSR 0x8 /* slave status */ -#define I2CMSR 0xC /* master status */ -#define I2CSIER 0x10 /* slave irq enable */ -#define I2CMIER 0x14 /* master irq enable */ -#define I2CCCR 0x18 /* clock dividers */ -#define I2CSAR 0x1c /* slave address */ -#define I2CMAR 0x20 /* master address */ -#define I2CRXTX 0x24 /* data port */ -#define I2CFCR 0x28 /* fifo control */ -#define I2CFSR 0x2C /* fifo status */ -#define I2CFIER 0x30 /* fifo irq enable */ -#define I2CRFDR 0x34 /* rx fifo count */ -#define I2CTFDR 0x38 /* tx fifo count */ - -#define REGSIZE 0x3C - -#define MCR_MDBS 0x80 /* non-fifo mode switch */ -#define MCR_FSCL 0x40 /* override SCL pin */ -#define MCR_FSDA 0x20 /* override SDA pin */ -#define MCR_OBPC 0x10 /* override pins */ -#define MCR_MIE 0x08 /* master if enable */ -#define MCR_TSBE 0x04 -#define MCR_FSB 0x02 /* force stop bit */ -#define MCR_ESG 0x01 /* en startbit gen. */ - -#define MSR_MNR 0x40 /* nack received */ -#define MSR_MAL 0x20 /* arbitration lost */ -#define MSR_MST 0x10 /* sent a stop */ -#define MSR_MDE 0x08 -#define MSR_MDT 0x04 -#define MSR_MDR 0x02 -#define MSR_MAT 0x01 /* slave addr xfer done */ - -#define MIE_MNRE 0x40 /* nack irq en */ -#define MIE_MALE 0x20 /* arblos irq en */ -#define MIE_MSTE 0x10 /* stop irq en */ -#define MIE_MDEE 0x08 -#define MIE_MDTE 0x04 -#define MIE_MDRE 0x02 -#define MIE_MATE 0x01 /* address sent irq en */ - -#define FCR_RFRST 0x02 /* reset rx fifo */ -#define FCR_TFRST 0x01 /* reset tx fifo */ - -#define FSR_TEND 0x04 /* last byte sent */ -#define FSR_RDF 0x02 /* rx fifo trigger */ -#define FSR_TDFE 0x01 /* tx fifo empty */ - -#define FIER_TEIE 0x04 /* tx fifo empty irq en */ -#define FIER_RXIE 0x02 /* rx fifo trig irq en */ -#define FIER_TXIE 0x01 /* tx fifo trig irq en */ - -#define FIFO_SIZE 16 - -struct cami2c { - void __iomem *iobase; - struct i2c_adapter adap; - - /* message processing */ - struct i2c_msg *msg; -#define IDF_SEND 1 -#define IDF_RECV 2 -#define IDF_STOP 4 - int flags; - -#define IDS_DONE 1 -#define IDS_ARBLOST 2 -#define IDS_NACK 4 - int status; - struct completion xfer_done; - - int irq; - struct resource *ioarea; -}; - -static inline void OUT32(struct cami2c *cam, int reg, unsigned long val) -{ - __raw_writel(val, (unsigned long)cam->iobase + reg); -} - -static inline unsigned long IN32(struct cami2c *cam, int reg) -{ - return __raw_readl((unsigned long)cam->iobase + reg); -} - -static irqreturn_t sh7760_i2c_irq(int irq, void *ptr) -{ - struct cami2c *id = ptr; - struct i2c_msg *msg = id->msg; - char *data = msg->buf; - unsigned long msr, fsr, fier, len; - - msr = IN32(id, I2CMSR); - fsr = IN32(id, I2CFSR); - - /* arbitration lost */ - if (msr & MSR_MAL) { - OUT32(id, I2CMCR, 0); - OUT32(id, I2CSCR, 0); - OUT32(id, I2CSAR, 0); - id->status |= IDS_DONE | IDS_ARBLOST; - goto out; - } - - if (msr & MSR_MNR) { - /* NACK handling is very screwed up. After receiving a - * NAK IRQ one has to wait a bit before writing to any - * registers, or the ctl will lock up. After that delay - * do a normal i2c stop. Then wait at least 1 ms before - * attempting another transfer or ctl will stop working - */ - udelay(100); /* wait or risk ctl hang */ - OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST); - OUT32(id, I2CMCR, MCR_MIE | MCR_FSB); - OUT32(id, I2CFIER, 0); - OUT32(id, I2CMIER, MIE_MSTE); - OUT32(id, I2CSCR, 0); - OUT32(id, I2CSAR, 0); - id->status |= IDS_NACK; - msr &= ~MSR_MAT; - fsr = 0; - /* In some cases the MST bit is also set. */ - } - - /* i2c-stop was sent */ - if (msr & MSR_MST) { - id->status |= IDS_DONE; - goto out; - } - - /* i2c slave addr was sent; set to "normal" operation */ - if (msr & MSR_MAT) - OUT32(id, I2CMCR, MCR_MIE); - - fier = IN32(id, I2CFIER); - - if (fsr & FSR_RDF) { - len = IN32(id, I2CRFDR); - if (msg->len <= len) { - if (id->flags & IDF_STOP) { - OUT32(id, I2CMCR, MCR_MIE | MCR_FSB); - OUT32(id, I2CFIER, 0); - /* manual says: wait >= 0.5 SCL times */ - udelay(5); - /* next int should be MST */ - } else { - id->status |= IDS_DONE; - /* keep the RDF bit: ctrl holds SCL low - * until the setup for the next i2c_msg - * clears this bit. - */ - fsr &= ~FSR_RDF; - } - } - while (msg->len && len) { - *data++ = IN32(id, I2CRXTX); - msg->len--; - len--; - } - - if (msg->len) { - len = (msg->len >= FIFO_SIZE) ? FIFO_SIZE - 1 - : msg->len - 1; - - OUT32(id, I2CFCR, FCR_TFRST | ((len & 0xf) << 4)); - } - - } else if (id->flags & IDF_SEND) { - if ((fsr & FSR_TEND) && (msg->len < 1)) { - if (id->flags & IDF_STOP) { - OUT32(id, I2CMCR, MCR_MIE | MCR_FSB); - } else { - id->status |= IDS_DONE; - /* keep the TEND bit: ctl holds SCL low - * until the setup for the next i2c_msg - * clears this bit. - */ - fsr &= ~FSR_TEND; - } - } - if (fsr & FSR_TDFE) { - while (msg->len && (IN32(id, I2CTFDR) < FIFO_SIZE)) { - OUT32(id, I2CRXTX, *data++); - msg->len--; - } - - if (msg->len < 1) { - fier &= ~FIER_TXIE; - OUT32(id, I2CFIER, fier); - } else { - len = (msg->len >= FIFO_SIZE) ? 2 : 0; - OUT32(id, I2CFCR, - FCR_RFRST | ((len & 3) << 2)); - } - } - } -out: - if (id->status & IDS_DONE) { - OUT32(id, I2CMIER, 0); - OUT32(id, I2CFIER, 0); - id->msg = NULL; - complete(&id->xfer_done); - } - /* clear status flags and ctrl resumes work */ - OUT32(id, I2CMSR, ~msr); - OUT32(id, I2CFSR, ~fsr); - OUT32(id, I2CSSR, 0); - - return IRQ_HANDLED; -} - - -/* prepare and start a master receive operation */ -static void sh7760_i2c_mrecv(struct cami2c *id) -{ - int len; - - id->flags |= IDF_RECV; - - /* set the slave addr reg; otherwise rcv wont work! */ - OUT32(id, I2CSAR, 0xfe); - OUT32(id, I2CMAR, (id->msg->addr << 1) | 1); - - /* adjust rx fifo trigger */ - if (id->msg->len >= FIFO_SIZE) - len = FIFO_SIZE - 1; /* trigger at fifo full */ - else - len = id->msg->len - 1; /* trigger before all received */ - - OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST); - OUT32(id, I2CFCR, FCR_TFRST | ((len & 0xF) << 4)); - - OUT32(id, I2CMSR, 0); - OUT32(id, I2CMCR, MCR_MIE | MCR_ESG); - OUT32(id, I2CMIER, MIE_MNRE | MIE_MALE | MIE_MSTE | MIE_MATE); - OUT32(id, I2CFIER, FIER_RXIE); -} - -/* prepare and start a master send operation */ -static void sh7760_i2c_msend(struct cami2c *id) -{ - int len; - - id->flags |= IDF_SEND; - - /* set the slave addr reg; otherwise xmit wont work! */ - OUT32(id, I2CSAR, 0xfe); - OUT32(id, I2CMAR, (id->msg->addr << 1) | 0); - - /* adjust tx fifo trigger */ - if (id->msg->len >= FIFO_SIZE) - len = 2; /* trig: 2 bytes left in TX fifo */ - else - len = 0; /* trig: 8 bytes left in TX fifo */ - - OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST); - OUT32(id, I2CFCR, FCR_RFRST | ((len & 3) << 2)); - - while (id->msg->len && IN32(id, I2CTFDR) < FIFO_SIZE) { - OUT32(id, I2CRXTX, *(id->msg->buf)); - (id->msg->len)--; - (id->msg->buf)++; - } - - OUT32(id, I2CMSR, 0); - OUT32(id, I2CMCR, MCR_MIE | MCR_ESG); - OUT32(id, I2CFSR, 0); - OUT32(id, I2CMIER, MIE_MNRE | MIE_MALE | MIE_MSTE | MIE_MATE); - OUT32(id, I2CFIER, FIER_TEIE | (id->msg->len ? FIER_TXIE : 0)); -} - -static inline int sh7760_i2c_busy_check(struct cami2c *id) -{ - return (IN32(id, I2CMCR) & MCR_FSDA); -} - -static int sh7760_i2c_master_xfer(struct i2c_adapter *adap, - struct i2c_msg *msgs, - int num) -{ - struct cami2c *id = adap->algo_data; - int i, retr; - - if (sh7760_i2c_busy_check(id)) { - dev_err(&adap->dev, "sh7760-i2c%d: bus busy!\n", adap->nr); - return -EBUSY; - } - - i = 0; - while (i < num) { - retr = adap->retries; -retry: - id->flags = ((i == (num-1)) ? IDF_STOP : 0); - id->status = 0; - id->msg = msgs; - init_completion(&id->xfer_done); - - if (msgs->flags & I2C_M_RD) - sh7760_i2c_mrecv(id); - else - sh7760_i2c_msend(id); - - wait_for_completion(&id->xfer_done); - - if (id->status == 0) { - num = -EIO; - break; - } - - if (id->status & IDS_NACK) { - /* wait a bit or i2c module stops working */ - mdelay(1); - num = -EREMOTEIO; - break; - } - - if (id->status & IDS_ARBLOST) { - if (retr--) { - mdelay(2); - goto retry; - } - num = -EREMOTEIO; - break; - } - - msgs++; - i++; - } - - id->msg = NULL; - id->flags = 0; - id->status = 0; - - OUT32(id, I2CMCR, 0); - OUT32(id, I2CMSR, 0); - OUT32(id, I2CMIER, 0); - OUT32(id, I2CFIER, 0); - - /* reset slave module registers too: master mode enables slave - * module for receive ops (ack, data). Without this reset, - * eternal bus activity might be reported after NACK / ARBLOST. - */ - OUT32(id, I2CSCR, 0); - OUT32(id, I2CSAR, 0); - OUT32(id, I2CSSR, 0); - - return num; -} - -static u32 sh7760_i2c_func(struct i2c_adapter *adap) -{ - return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK); -} - -static const struct i2c_algorithm sh7760_i2c_algo = { - .master_xfer = sh7760_i2c_master_xfer, - .functionality = sh7760_i2c_func, -}; - -/* calculate CCR register setting for a desired scl clock. SCL clock is - * derived from I2C module clock (iclk) which in turn is derived from - * peripheral module clock (mclk, usually around 33MHz): - * iclk = mclk/(CDF + 1). iclk must be < 20MHz. - * scl = iclk/(SCGD*8 + 20). - */ -static int calc_CCR(unsigned long scl_hz) -{ - struct clk *mclk; - unsigned long mck, m1, dff, odff, iclk; - signed char cdf, cdfm; - int scgd, scgdm, scgds; - - mclk = clk_get(NULL, "peripheral_clk"); - if (IS_ERR(mclk)) { - return PTR_ERR(mclk); - } else { - mck = mclk->rate; - clk_put(mclk); - } - - odff = scl_hz; - scgdm = cdfm = m1 = 0; - for (cdf = 3; cdf >= 0; cdf--) { - iclk = mck / (1 + cdf); - if (iclk >= 20000000) - continue; - scgds = ((iclk / scl_hz) - 20) >> 3; - for (scgd = scgds; (scgd < 63) && scgd <= scgds + 1; scgd++) { - m1 = iclk / (20 + (scgd << 3)); - dff = abs(scl_hz - m1); - if (dff < odff) { - odff = dff; - cdfm = cdf; - scgdm = scgd; - } - } - } - /* fail if more than 25% off of requested SCL */ - if (odff > (scl_hz >> 2)) - return -EINVAL; - - /* create a CCR register value */ - return ((scgdm << 2) | cdfm); -} - -static int sh7760_i2c_probe(struct platform_device *pdev) -{ - struct sh7760_i2c_platdata *pd; - struct resource *res; - struct cami2c *id; - int ret; - - pd = dev_get_platdata(&pdev->dev); - if (!pd) { - dev_err(&pdev->dev, "no platform_data!\n"); - ret = -ENODEV; - goto out0; - } - - id = kzalloc(sizeof(struct cami2c), GFP_KERNEL); - if (!id) { - dev_err(&pdev->dev, "no mem for private data\n"); - ret = -ENOMEM; - goto out0; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "no mmio resources\n"); - ret = -ENODEV; - goto out1; - } - - id->ioarea = request_mem_region(res->start, REGSIZE, pdev->name); - if (!id->ioarea) { - dev_err(&pdev->dev, "mmio already reserved\n"); - ret = -EBUSY; - goto out1; - } - - id->iobase = ioremap(res->start, REGSIZE); - if (!id->iobase) { - dev_err(&pdev->dev, "cannot ioremap\n"); - ret = -ENODEV; - goto out2; - } - - ret = platform_get_irq(pdev, 0); - if (ret < 0) - goto out3; - id->irq = ret; - - id->adap.nr = pdev->id; - id->adap.algo = &sh7760_i2c_algo; - id->adap.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; - id->adap.retries = 3; - id->adap.algo_data = id; - id->adap.dev.parent = &pdev->dev; - snprintf(id->adap.name, sizeof(id->adap.name), - "SH7760 I2C at %08lx", (unsigned long)res->start); - - OUT32(id, I2CMCR, 0); - OUT32(id, I2CMSR, 0); - OUT32(id, I2CMIER, 0); - OUT32(id, I2CMAR, 0); - OUT32(id, I2CSIER, 0); - OUT32(id, I2CSAR, 0); - OUT32(id, I2CSCR, 0); - OUT32(id, I2CSSR, 0); - OUT32(id, I2CFIER, 0); - OUT32(id, I2CFCR, FCR_RFRST | FCR_TFRST); - OUT32(id, I2CFSR, 0); - - ret = calc_CCR(pd->speed_khz * 1000); - if (ret < 0) { - dev_err(&pdev->dev, "invalid SCL clock: %dkHz\n", - pd->speed_khz); - goto out3; - } - OUT32(id, I2CCCR, ret); - - if (request_irq(id->irq, sh7760_i2c_irq, 0, - SH7760_I2C_DEVNAME, id)) { - dev_err(&pdev->dev, "cannot get irq %d\n", id->irq); - ret = -EBUSY; - goto out3; - } - - ret = i2c_add_numbered_adapter(&id->adap); - if (ret < 0) - goto out4; - - platform_set_drvdata(pdev, id); - - dev_info(&pdev->dev, "%d kHz mmio %08x irq %d\n", - pd->speed_khz, res->start, id->irq); - - return 0; - -out4: - free_irq(id->irq, id); -out3: - iounmap(id->iobase); -out2: - release_resource(id->ioarea); - kfree(id->ioarea); -out1: - kfree(id); -out0: - return ret; -} - -static int sh7760_i2c_remove(struct platform_device *pdev) -{ - struct cami2c *id = platform_get_drvdata(pdev); - - i2c_del_adapter(&id->adap); - free_irq(id->irq, id); - iounmap(id->iobase); - release_resource(id->ioarea); - kfree(id->ioarea); - kfree(id); - - return 0; -} - -static struct platform_driver sh7760_i2c_drv = { - .driver = { - .name = SH7760_I2C_DEVNAME, - }, - .probe = sh7760_i2c_probe, - .remove = sh7760_i2c_remove, -}; - -module_platform_driver(sh7760_i2c_drv); - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("SH7760 I2C bus driver"); -MODULE_AUTHOR("Manuel Lauss "); From patchwork Fri Jan 13 06:23:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643098 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DB79CC7112F for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUB-000leH-Ap; Fri, 13 Jan 2023 06:24:19 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 10/22] input: remove sh_keysc Date: Fri, 13 Jan 2023 07:23:27 +0100 Message-Id: <20230113062339.1909087-11-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/input/keyboard/Kconfig | 10 - drivers/input/keyboard/Makefile | 1 - drivers/input/keyboard/sh_keysc.c | 334 ------------------------------ 3 files changed, 345 deletions(-) delete mode 100644 drivers/input/keyboard/sh_keysc.c diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 84490915ae4d5a..882ec5fef214ac 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -625,16 +625,6 @@ config KEYBOARD_SUNKBD To compile this driver as a module, choose M here: the module will be called sunkbd. -config KEYBOARD_SH_KEYSC - tristate "SuperH KEYSC keypad support" - depends on ARCH_SHMOBILE || COMPILE_TEST - help - Say Y here if you want to use a keypad attached to the KEYSC block - on SuperH processors such as sh7722 and sh7343. - - To compile this driver as a module, choose M here: the - module will be called sh_keysc. - config KEYBOARD_STMPE tristate "STMPE keypad support" depends on MFD_STMPE diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 5f67196bb2c1ea..8aba0b052b4504 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -60,7 +60,6 @@ obj-$(CONFIG_KEYBOARD_QT1050) += qt1050.o obj-$(CONFIG_KEYBOARD_QT1070) += qt1070.o obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o obj-$(CONFIG_KEYBOARD_SAMSUNG) += samsung-keypad.o -obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o obj-$(CONFIG_KEYBOARD_SNVS_PWRKEY) += snvs_pwrkey.o obj-$(CONFIG_KEYBOARD_SPEAR) += spear-keyboard.o obj-$(CONFIG_KEYBOARD_STMPE) += stmpe-keypad.o diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c deleted file mode 100644 index 2c00320f739fc1..00000000000000 --- a/drivers/input/keyboard/sh_keysc.c +++ /dev/null @@ -1,334 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * SuperH KEYSC Keypad Driver - * - * Copyright (C) 2008 Magnus Damm - * - * Based on gpio_keys.c, Copyright 2005 Phil Blundell - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static const struct { - unsigned char kymd, keyout, keyin; -} sh_keysc_mode[] = { - [SH_KEYSC_MODE_1] = { 0, 6, 5 }, - [SH_KEYSC_MODE_2] = { 1, 5, 6 }, - [SH_KEYSC_MODE_3] = { 2, 4, 7 }, - [SH_KEYSC_MODE_4] = { 3, 6, 6 }, - [SH_KEYSC_MODE_5] = { 4, 6, 7 }, - [SH_KEYSC_MODE_6] = { 5, 8, 8 }, -}; - -struct sh_keysc_priv { - void __iomem *iomem_base; - DECLARE_BITMAP(last_keys, SH_KEYSC_MAXKEYS); - struct input_dev *input; - struct sh_keysc_info pdata; -}; - -#define KYCR1 0 -#define KYCR2 1 -#define KYINDR 2 -#define KYOUTDR 3 - -#define KYCR2_IRQ_LEVEL 0x10 -#define KYCR2_IRQ_DISABLED 0x00 - -static unsigned long sh_keysc_read(struct sh_keysc_priv *p, int reg_nr) -{ - return ioread16(p->iomem_base + (reg_nr << 2)); -} - -static void sh_keysc_write(struct sh_keysc_priv *p, int reg_nr, - unsigned long value) -{ - iowrite16(value, p->iomem_base + (reg_nr << 2)); -} - -static void sh_keysc_level_mode(struct sh_keysc_priv *p, - unsigned long keys_set) -{ - struct sh_keysc_info *pdata = &p->pdata; - - sh_keysc_write(p, KYOUTDR, 0); - sh_keysc_write(p, KYCR2, KYCR2_IRQ_LEVEL | (keys_set << 8)); - - if (pdata->kycr2_delay) - udelay(pdata->kycr2_delay); -} - -static void sh_keysc_map_dbg(struct device *dev, unsigned long *map, - const char *str) -{ - int k; - - for (k = 0; k < BITS_TO_LONGS(SH_KEYSC_MAXKEYS); k++) - dev_dbg(dev, "%s[%d] 0x%lx\n", str, k, map[k]); -} - -static irqreturn_t sh_keysc_isr(int irq, void *dev_id) -{ - struct platform_device *pdev = dev_id; - struct sh_keysc_priv *priv = platform_get_drvdata(pdev); - struct sh_keysc_info *pdata = &priv->pdata; - int keyout_nr = sh_keysc_mode[pdata->mode].keyout; - int keyin_nr = sh_keysc_mode[pdata->mode].keyin; - DECLARE_BITMAP(keys, SH_KEYSC_MAXKEYS); - DECLARE_BITMAP(keys0, SH_KEYSC_MAXKEYS); - DECLARE_BITMAP(keys1, SH_KEYSC_MAXKEYS); - unsigned char keyin_set, tmp; - int i, k, n; - - dev_dbg(&pdev->dev, "isr!\n"); - - bitmap_fill(keys1, SH_KEYSC_MAXKEYS); - bitmap_zero(keys0, SH_KEYSC_MAXKEYS); - - do { - bitmap_zero(keys, SH_KEYSC_MAXKEYS); - keyin_set = 0; - - sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED); - - for (i = 0; i < keyout_nr; i++) { - n = keyin_nr * i; - - /* drive one KEYOUT pin low, read KEYIN pins */ - sh_keysc_write(priv, KYOUTDR, 0xffff ^ (3 << (i * 2))); - udelay(pdata->delay); - tmp = sh_keysc_read(priv, KYINDR); - - /* set bit if key press has been detected */ - for (k = 0; k < keyin_nr; k++) { - if (tmp & (1 << k)) - __set_bit(n + k, keys); - } - - /* keep track of which KEYIN bits that have been set */ - keyin_set |= tmp ^ ((1 << keyin_nr) - 1); - } - - sh_keysc_level_mode(priv, keyin_set); - - bitmap_complement(keys, keys, SH_KEYSC_MAXKEYS); - bitmap_and(keys1, keys1, keys, SH_KEYSC_MAXKEYS); - bitmap_or(keys0, keys0, keys, SH_KEYSC_MAXKEYS); - - sh_keysc_map_dbg(&pdev->dev, keys, "keys"); - - } while (sh_keysc_read(priv, KYCR2) & 0x01); - - sh_keysc_map_dbg(&pdev->dev, priv->last_keys, "last_keys"); - sh_keysc_map_dbg(&pdev->dev, keys0, "keys0"); - sh_keysc_map_dbg(&pdev->dev, keys1, "keys1"); - - for (i = 0; i < SH_KEYSC_MAXKEYS; i++) { - k = pdata->keycodes[i]; - if (!k) - continue; - - if (test_bit(i, keys0) == test_bit(i, priv->last_keys)) - continue; - - if (test_bit(i, keys1) || test_bit(i, keys0)) { - input_event(priv->input, EV_KEY, k, 1); - __set_bit(i, priv->last_keys); - } - - if (!test_bit(i, keys1)) { - input_event(priv->input, EV_KEY, k, 0); - __clear_bit(i, priv->last_keys); - } - - } - input_sync(priv->input); - - return IRQ_HANDLED; -} - -static int sh_keysc_probe(struct platform_device *pdev) -{ - struct sh_keysc_priv *priv; - struct sh_keysc_info *pdata; - struct resource *res; - struct input_dev *input; - int i; - int irq, error; - - if (!dev_get_platdata(&pdev->dev)) { - dev_err(&pdev->dev, "no platform data defined\n"); - error = -EINVAL; - goto err0; - } - - error = -ENXIO; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { - dev_err(&pdev->dev, "failed to get I/O memory\n"); - goto err0; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - goto err0; - - priv = kzalloc(sizeof(*priv), GFP_KERNEL); - if (priv == NULL) { - dev_err(&pdev->dev, "failed to allocate driver data\n"); - error = -ENOMEM; - goto err0; - } - - platform_set_drvdata(pdev, priv); - memcpy(&priv->pdata, dev_get_platdata(&pdev->dev), sizeof(priv->pdata)); - pdata = &priv->pdata; - - priv->iomem_base = ioremap(res->start, resource_size(res)); - if (priv->iomem_base == NULL) { - dev_err(&pdev->dev, "failed to remap I/O memory\n"); - error = -ENXIO; - goto err1; - } - - priv->input = input_allocate_device(); - if (!priv->input) { - dev_err(&pdev->dev, "failed to allocate input device\n"); - error = -ENOMEM; - goto err2; - } - - input = priv->input; - input->evbit[0] = BIT_MASK(EV_KEY); - - input->name = pdev->name; - input->phys = "sh-keysc-keys/input0"; - input->dev.parent = &pdev->dev; - - input->id.bustype = BUS_HOST; - input->id.vendor = 0x0001; - input->id.product = 0x0001; - input->id.version = 0x0100; - - input->keycode = pdata->keycodes; - input->keycodesize = sizeof(pdata->keycodes[0]); - input->keycodemax = ARRAY_SIZE(pdata->keycodes); - - error = request_threaded_irq(irq, NULL, sh_keysc_isr, IRQF_ONESHOT, - dev_name(&pdev->dev), pdev); - if (error) { - dev_err(&pdev->dev, "failed to request IRQ\n"); - goto err3; - } - - for (i = 0; i < SH_KEYSC_MAXKEYS; i++) - __set_bit(pdata->keycodes[i], input->keybit); - __clear_bit(KEY_RESERVED, input->keybit); - - error = input_register_device(input); - if (error) { - dev_err(&pdev->dev, "failed to register input device\n"); - goto err4; - } - - pm_runtime_enable(&pdev->dev); - pm_runtime_get_sync(&pdev->dev); - - sh_keysc_write(priv, KYCR1, (sh_keysc_mode[pdata->mode].kymd << 8) | - pdata->scan_timing); - sh_keysc_level_mode(priv, 0); - - device_init_wakeup(&pdev->dev, 1); - - return 0; - - err4: - free_irq(irq, pdev); - err3: - input_free_device(input); - err2: - iounmap(priv->iomem_base); - err1: - kfree(priv); - err0: - return error; -} - -static int sh_keysc_remove(struct platform_device *pdev) -{ - struct sh_keysc_priv *priv = platform_get_drvdata(pdev); - - sh_keysc_write(priv, KYCR2, KYCR2_IRQ_DISABLED); - - input_unregister_device(priv->input); - free_irq(platform_get_irq(pdev, 0), pdev); - iounmap(priv->iomem_base); - - pm_runtime_put_sync(&pdev->dev); - pm_runtime_disable(&pdev->dev); - - kfree(priv); - - return 0; -} - -static int sh_keysc_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - struct sh_keysc_priv *priv = platform_get_drvdata(pdev); - int irq = platform_get_irq(pdev, 0); - unsigned short value; - - value = sh_keysc_read(priv, KYCR1); - - if (device_may_wakeup(dev)) { - sh_keysc_write(priv, KYCR1, value | 0x80); - enable_irq_wake(irq); - } else { - sh_keysc_write(priv, KYCR1, value & ~0x80); - pm_runtime_put_sync(dev); - } - - return 0; -} - -static int sh_keysc_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - int irq = platform_get_irq(pdev, 0); - - if (device_may_wakeup(dev)) - disable_irq_wake(irq); - else - pm_runtime_get_sync(dev); - - return 0; -} - -static DEFINE_SIMPLE_DEV_PM_OPS(sh_keysc_dev_pm_ops, - sh_keysc_suspend, sh_keysc_resume); - -static struct platform_driver sh_keysc_device_driver = { - .probe = sh_keysc_probe, - .remove = sh_keysc_remove, - .driver = { - .name = "sh_keysc", - .pm = pm_sleep_ptr(&sh_keysc_dev_pm_ops), - } -}; -module_platform_driver(sh_keysc_device_driver); - -MODULE_AUTHOR("Magnus Damm"); -MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver"); -MODULE_LICENSE("GPL"); From patchwork Fri Jan 13 06:23:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642576 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54DB1C71133 for ; Fri, 13 Jan 2023 06:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241087AbjAMG2r (ORCPT ); Fri, 13 Jan 2023 01:28:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235159AbjAMGZO (ORCPT ); Fri, 13 Jan 2023 01:25:14 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98D161BC80; Thu, 12 Jan 2023 22:24:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Sender:Reply-To:Content-ID:Content-Description; bh=38ZdmqJfgTuYXp252hYJNLrwx/7u8Rttfe81dskbpYQ=; b=Dj8Ylj4feHn2Q8zLgHe5rgnue4 +Vm4CVYWIf5GgWiuDd34sTn24Z9KS8CagJsLTrbaAGo+bdtCyIrisky7SzqaYjkbAz1c+1toHsTAk zERaYr6R0NZ5nfOKzpzl38Jjh5JGvj9SvZker/eCdXizSyP8RqgfDnIniAXtmDVMH7uS77fiAX3MG SMTpMiziU7noj7B6ZdgjWYQQlWq7MWw/9kEYFHlda7dz/cdjMI6+Ambw8HLkOzC8SrnJ51N2nKAWd Tb3WfHSt85OhCsocw3wM+N+0KaffKoBMs+e+RifN/F5Tg3MkBHM7JzPqbG6244GTNfxiRKeL3zNBf l46PQTfg==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUE-000lh7-6c; Fri, 13 Jan 2023 06:24:23 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 11/22] mtd/nand: remove sh_flctl Date: Fri, 13 Jan 2023 07:23:28 +0100 Message-Id: <20230113062339.1909087-12-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/mtd/nand/raw/Kconfig | 8 - drivers/mtd/nand/raw/Makefile | 1 - drivers/mtd/nand/raw/sh_flctl.c | 1234 ------------------------------- include/linux/mtd/sh_flctl.h | 180 ----- 4 files changed, 1423 deletions(-) delete mode 100644 drivers/mtd/nand/raw/sh_flctl.c delete mode 100644 include/linux/mtd/sh_flctl.h diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index 98ea1c9e65c8ef..20a4988ea418d5 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -284,14 +284,6 @@ config MTD_NAND_MXC This enables the driver for the NAND flash controller on the MXC processors. -config MTD_NAND_SH_FLCTL - tristate "Renesas SuperH FLCTL NAND controller" - depends on SUPERH || COMPILE_TEST - depends on HAS_IOMEM - help - Several Renesas SuperH CPU has FLCTL. This option enables support - for NAND Flash using FLCTL. - config MTD_NAND_DAVINCI tristate "DaVinci/Keystone NAND controller" depends on ARCH_DAVINCI || (ARCH_KEYSTONE && TI_AEMIF) || COMPILE_TEST diff --git a/drivers/mtd/nand/raw/Makefile b/drivers/mtd/nand/raw/Makefile index fa1d0012031012..2c6eb25c9d0aae 100644 --- a/drivers/mtd/nand/raw/Makefile +++ b/drivers/mtd/nand/raw/Makefile @@ -33,7 +33,6 @@ obj-$(CONFIG_MTD_NAND_FSL_IFC) += fsl_ifc_nand.o obj-$(CONFIG_MTD_NAND_FSL_UPM) += fsl_upm.o obj-$(CONFIG_MTD_NAND_SLC_LPC32XX) += lpc32xx_slc.o obj-$(CONFIG_MTD_NAND_MLC_LPC32XX) += lpc32xx_mlc.o -obj-$(CONFIG_MTD_NAND_SH_FLCTL) += sh_flctl.o obj-$(CONFIG_MTD_NAND_MXC) += mxc_nand.o obj-$(CONFIG_MTD_NAND_SOCRATES) += socrates_nand.o obj-$(CONFIG_MTD_NAND_TXX9NDFMC) += txx9ndfmc.o diff --git a/drivers/mtd/nand/raw/sh_flctl.c b/drivers/mtd/nand/raw/sh_flctl.c deleted file mode 100644 index a278829469d610..00000000000000 --- a/drivers/mtd/nand/raw/sh_flctl.c +++ /dev/null @@ -1,1234 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SuperH FLCTL nand controller - * - * Copyright (c) 2008 Renesas Solutions Corp. - * Copyright (c) 2008 Atom Create Engineering Co., Ltd. - * - * Based on fsl_elbc_nand.c, Copyright (c) 2006-2007 Freescale Semiconductor - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include - -static int flctl_4secc_ooblayout_sp_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - - if (section) - return -ERANGE; - - oobregion->offset = 0; - oobregion->length = chip->ecc.bytes; - - return 0; -} - -static int flctl_4secc_ooblayout_sp_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - if (section) - return -ERANGE; - - oobregion->offset = 12; - oobregion->length = 4; - - return 0; -} - -static const struct mtd_ooblayout_ops flctl_4secc_oob_smallpage_ops = { - .ecc = flctl_4secc_ooblayout_sp_ecc, - .free = flctl_4secc_ooblayout_sp_free, -}; - -static int flctl_4secc_ooblayout_lp_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - - if (section >= chip->ecc.steps) - return -ERANGE; - - oobregion->offset = (section * 16) + 6; - oobregion->length = chip->ecc.bytes; - - return 0; -} - -static int flctl_4secc_ooblayout_lp_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - - if (section >= chip->ecc.steps) - return -ERANGE; - - oobregion->offset = section * 16; - oobregion->length = 6; - - if (!section) { - oobregion->offset += 2; - oobregion->length -= 2; - } - - return 0; -} - -static const struct mtd_ooblayout_ops flctl_4secc_oob_largepage_ops = { - .ecc = flctl_4secc_ooblayout_lp_ecc, - .free = flctl_4secc_ooblayout_lp_free, -}; - -static uint8_t scan_ff_pattern[] = { 0xff, 0xff }; - -static struct nand_bbt_descr flctl_4secc_smallpage = { - .offs = 11, - .len = 1, - .pattern = scan_ff_pattern, -}; - -static struct nand_bbt_descr flctl_4secc_largepage = { - .offs = 0, - .len = 2, - .pattern = scan_ff_pattern, -}; - -static void empty_fifo(struct sh_flctl *flctl) -{ - writel(flctl->flintdmacr_base | AC1CLR | AC0CLR, FLINTDMACR(flctl)); - writel(flctl->flintdmacr_base, FLINTDMACR(flctl)); -} - -static void start_translation(struct sh_flctl *flctl) -{ - writeb(TRSTRT, FLTRCR(flctl)); -} - -static void timeout_error(struct sh_flctl *flctl, const char *str) -{ - dev_err(&flctl->pdev->dev, "Timeout occurred in %s\n", str); -} - -static void wait_completion(struct sh_flctl *flctl) -{ - uint32_t timeout = LOOP_TIMEOUT_MAX; - - while (timeout--) { - if (readb(FLTRCR(flctl)) & TREND) { - writeb(0x0, FLTRCR(flctl)); - return; - } - udelay(1); - } - - timeout_error(flctl, __func__); - writeb(0x0, FLTRCR(flctl)); -} - -static void flctl_dma_complete(void *param) -{ - struct sh_flctl *flctl = param; - - complete(&flctl->dma_complete); -} - -static void flctl_release_dma(struct sh_flctl *flctl) -{ - if (flctl->chan_fifo0_rx) { - dma_release_channel(flctl->chan_fifo0_rx); - flctl->chan_fifo0_rx = NULL; - } - if (flctl->chan_fifo0_tx) { - dma_release_channel(flctl->chan_fifo0_tx); - flctl->chan_fifo0_tx = NULL; - } -} - -static void flctl_setup_dma(struct sh_flctl *flctl) -{ - dma_cap_mask_t mask; - struct dma_slave_config cfg; - struct platform_device *pdev = flctl->pdev; - struct sh_flctl_platform_data *pdata = dev_get_platdata(&pdev->dev); - int ret; - - if (!pdata) - return; - - if (pdata->slave_id_fifo0_tx <= 0 || pdata->slave_id_fifo0_rx <= 0) - return; - - /* We can only either use DMA for both Tx and Rx or not use it at all */ - dma_cap_zero(mask); - dma_cap_set(DMA_SLAVE, mask); - - flctl->chan_fifo0_tx = dma_request_channel(mask, shdma_chan_filter, - (void *)(uintptr_t)pdata->slave_id_fifo0_tx); - dev_dbg(&pdev->dev, "%s: TX: got channel %p\n", __func__, - flctl->chan_fifo0_tx); - - if (!flctl->chan_fifo0_tx) - return; - - memset(&cfg, 0, sizeof(cfg)); - cfg.direction = DMA_MEM_TO_DEV; - cfg.dst_addr = flctl->fifo; - cfg.src_addr = 0; - ret = dmaengine_slave_config(flctl->chan_fifo0_tx, &cfg); - if (ret < 0) - goto err; - - flctl->chan_fifo0_rx = dma_request_channel(mask, shdma_chan_filter, - (void *)(uintptr_t)pdata->slave_id_fifo0_rx); - dev_dbg(&pdev->dev, "%s: RX: got channel %p\n", __func__, - flctl->chan_fifo0_rx); - - if (!flctl->chan_fifo0_rx) - goto err; - - cfg.direction = DMA_DEV_TO_MEM; - cfg.dst_addr = 0; - cfg.src_addr = flctl->fifo; - ret = dmaengine_slave_config(flctl->chan_fifo0_rx, &cfg); - if (ret < 0) - goto err; - - init_completion(&flctl->dma_complete); - - return; - -err: - flctl_release_dma(flctl); -} - -static void set_addr(struct mtd_info *mtd, int column, int page_addr) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - uint32_t addr = 0; - - if (column == -1) { - addr = page_addr; /* ERASE1 */ - } else if (page_addr != -1) { - /* SEQIN, READ0, etc.. */ - if (flctl->chip.options & NAND_BUSWIDTH_16) - column >>= 1; - if (flctl->page_size) { - addr = column & 0x0FFF; - addr |= (page_addr & 0xff) << 16; - addr |= ((page_addr >> 8) & 0xff) << 24; - /* big than 128MB */ - if (flctl->rw_ADRCNT == ADRCNT2_E) { - uint32_t addr2; - addr2 = (page_addr >> 16) & 0xff; - writel(addr2, FLADR2(flctl)); - } - } else { - addr = column; - addr |= (page_addr & 0xff) << 8; - addr |= ((page_addr >> 8) & 0xff) << 16; - addr |= ((page_addr >> 16) & 0xff) << 24; - } - } - writel(addr, FLADR(flctl)); -} - -static void wait_rfifo_ready(struct sh_flctl *flctl) -{ - uint32_t timeout = LOOP_TIMEOUT_MAX; - - while (timeout--) { - uint32_t val; - /* check FIFO */ - val = readl(FLDTCNTR(flctl)) >> 16; - if (val & 0xFF) - return; - udelay(1); - } - timeout_error(flctl, __func__); -} - -static void wait_wfifo_ready(struct sh_flctl *flctl) -{ - uint32_t len, timeout = LOOP_TIMEOUT_MAX; - - while (timeout--) { - /* check FIFO */ - len = (readl(FLDTCNTR(flctl)) >> 16) & 0xFF; - if (len >= 4) - return; - udelay(1); - } - timeout_error(flctl, __func__); -} - -static enum flctl_ecc_res_t wait_recfifo_ready - (struct sh_flctl *flctl, int sector_number) -{ - uint32_t timeout = LOOP_TIMEOUT_MAX; - void __iomem *ecc_reg[4]; - int i; - int state = FL_SUCCESS; - uint32_t data, size; - - /* - * First this loops checks in FLDTCNTR if we are ready to read out the - * oob data. This is the case if either all went fine without errors or - * if the bottom part of the loop corrected the errors or marked them as - * uncorrectable and the controller is given time to push the data into - * the FIFO. - */ - while (timeout--) { - /* check if all is ok and we can read out the OOB */ - size = readl(FLDTCNTR(flctl)) >> 24; - if ((size & 0xFF) == 4) - return state; - - /* check if a correction code has been calculated */ - if (!(readl(FL4ECCCR(flctl)) & _4ECCEND)) { - /* - * either we wait for the fifo to be filled or a - * correction pattern is being generated - */ - udelay(1); - continue; - } - - /* check for an uncorrectable error */ - if (readl(FL4ECCCR(flctl)) & _4ECCFA) { - /* check if we face a non-empty page */ - for (i = 0; i < 512; i++) { - if (flctl->done_buff[i] != 0xff) { - state = FL_ERROR; /* can't correct */ - break; - } - } - - if (state == FL_SUCCESS) - dev_dbg(&flctl->pdev->dev, - "reading empty sector %d, ecc error ignored\n", - sector_number); - - writel(0, FL4ECCCR(flctl)); - continue; - } - - /* start error correction */ - ecc_reg[0] = FL4ECCRESULT0(flctl); - ecc_reg[1] = FL4ECCRESULT1(flctl); - ecc_reg[2] = FL4ECCRESULT2(flctl); - ecc_reg[3] = FL4ECCRESULT3(flctl); - - for (i = 0; i < 3; i++) { - uint8_t org; - unsigned int index; - - data = readl(ecc_reg[i]); - - if (flctl->page_size) - index = (512 * sector_number) + - (data >> 16); - else - index = data >> 16; - - org = flctl->done_buff[index]; - flctl->done_buff[index] = org ^ (data & 0xFF); - } - state = FL_REPAIRABLE; - writel(0, FL4ECCCR(flctl)); - } - - timeout_error(flctl, __func__); - return FL_TIMEOUT; /* timeout */ -} - -static void wait_wecfifo_ready(struct sh_flctl *flctl) -{ - uint32_t timeout = LOOP_TIMEOUT_MAX; - uint32_t len; - - while (timeout--) { - /* check FLECFIFO */ - len = (readl(FLDTCNTR(flctl)) >> 24) & 0xFF; - if (len >= 4) - return; - udelay(1); - } - timeout_error(flctl, __func__); -} - -static int flctl_dma_fifo0_transfer(struct sh_flctl *flctl, unsigned long *buf, - int len, enum dma_data_direction dir) -{ - struct dma_async_tx_descriptor *desc = NULL; - struct dma_chan *chan; - enum dma_transfer_direction tr_dir; - dma_addr_t dma_addr; - dma_cookie_t cookie; - uint32_t reg; - int ret = 0; - unsigned long time_left; - - if (dir == DMA_FROM_DEVICE) { - chan = flctl->chan_fifo0_rx; - tr_dir = DMA_DEV_TO_MEM; - } else { - chan = flctl->chan_fifo0_tx; - tr_dir = DMA_MEM_TO_DEV; - } - - dma_addr = dma_map_single(chan->device->dev, buf, len, dir); - - if (!dma_mapping_error(chan->device->dev, dma_addr)) - desc = dmaengine_prep_slave_single(chan, dma_addr, len, - tr_dir, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); - - if (desc) { - reg = readl(FLINTDMACR(flctl)); - reg |= DREQ0EN; - writel(reg, FLINTDMACR(flctl)); - - desc->callback = flctl_dma_complete; - desc->callback_param = flctl; - cookie = dmaengine_submit(desc); - if (dma_submit_error(cookie)) { - ret = dma_submit_error(cookie); - dev_warn(&flctl->pdev->dev, - "DMA submit failed, falling back to PIO\n"); - goto out; - } - - dma_async_issue_pending(chan); - } else { - /* DMA failed, fall back to PIO */ - flctl_release_dma(flctl); - dev_warn(&flctl->pdev->dev, - "DMA failed, falling back to PIO\n"); - ret = -EIO; - goto out; - } - - time_left = - wait_for_completion_timeout(&flctl->dma_complete, - msecs_to_jiffies(3000)); - - if (time_left == 0) { - dmaengine_terminate_all(chan); - dev_err(&flctl->pdev->dev, "wait_for_completion_timeout\n"); - ret = -ETIMEDOUT; - } - -out: - reg = readl(FLINTDMACR(flctl)); - reg &= ~DREQ0EN; - writel(reg, FLINTDMACR(flctl)); - - dma_unmap_single(chan->device->dev, dma_addr, len, dir); - - /* ret == 0 is success */ - return ret; -} - -static void read_datareg(struct sh_flctl *flctl, int offset) -{ - unsigned long data; - unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; - - wait_completion(flctl); - - data = readl(FLDATAR(flctl)); - *buf = le32_to_cpu(data); -} - -static void read_fiforeg(struct sh_flctl *flctl, int rlen, int offset) -{ - int i, len_4align; - unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; - - len_4align = (rlen + 3) / 4; - - /* initiate DMA transfer */ - if (flctl->chan_fifo0_rx && rlen >= 32 && - !flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_FROM_DEVICE)) - goto convert; /* DMA success */ - - /* do polling transfer */ - for (i = 0; i < len_4align; i++) { - wait_rfifo_ready(flctl); - buf[i] = readl(FLDTFIFO(flctl)); - } - -convert: - for (i = 0; i < len_4align; i++) - buf[i] = be32_to_cpu(buf[i]); -} - -static enum flctl_ecc_res_t read_ecfiforeg - (struct sh_flctl *flctl, uint8_t *buff, int sector) -{ - int i; - enum flctl_ecc_res_t res; - unsigned long *ecc_buf = (unsigned long *)buff; - - res = wait_recfifo_ready(flctl , sector); - - if (res != FL_ERROR) { - for (i = 0; i < 4; i++) { - ecc_buf[i] = readl(FLECFIFO(flctl)); - ecc_buf[i] = be32_to_cpu(ecc_buf[i]); - } - } - - return res; -} - -static void write_fiforeg(struct sh_flctl *flctl, int rlen, - unsigned int offset) -{ - int i, len_4align; - unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; - - len_4align = (rlen + 3) / 4; - for (i = 0; i < len_4align; i++) { - wait_wfifo_ready(flctl); - writel(cpu_to_be32(buf[i]), FLDTFIFO(flctl)); - } -} - -static void write_ec_fiforeg(struct sh_flctl *flctl, int rlen, - unsigned int offset) -{ - int i, len_4align; - unsigned long *buf = (unsigned long *)&flctl->done_buff[offset]; - - len_4align = (rlen + 3) / 4; - - for (i = 0; i < len_4align; i++) - buf[i] = cpu_to_be32(buf[i]); - - /* initiate DMA transfer */ - if (flctl->chan_fifo0_tx && rlen >= 32 && - !flctl_dma_fifo0_transfer(flctl, buf, rlen, DMA_TO_DEVICE)) - return; /* DMA success */ - - /* do polling transfer */ - for (i = 0; i < len_4align; i++) { - wait_wecfifo_ready(flctl); - writel(buf[i], FLECFIFO(flctl)); - } -} - -static void set_cmd_regs(struct mtd_info *mtd, uint32_t cmd, uint32_t flcmcdr_val) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - uint32_t flcmncr_val = flctl->flcmncr_base & ~SEL_16BIT; - uint32_t flcmdcr_val, addr_len_bytes = 0; - - /* Set SNAND bit if page size is 2048byte */ - if (flctl->page_size) - flcmncr_val |= SNAND_E; - else - flcmncr_val &= ~SNAND_E; - - /* default FLCMDCR val */ - flcmdcr_val = DOCMD1_E | DOADR_E; - - /* Set for FLCMDCR */ - switch (cmd) { - case NAND_CMD_ERASE1: - addr_len_bytes = flctl->erase_ADRCNT; - flcmdcr_val |= DOCMD2_E; - break; - case NAND_CMD_READ0: - case NAND_CMD_READOOB: - case NAND_CMD_RNDOUT: - addr_len_bytes = flctl->rw_ADRCNT; - flcmdcr_val |= CDSRC_E; - if (flctl->chip.options & NAND_BUSWIDTH_16) - flcmncr_val |= SEL_16BIT; - break; - case NAND_CMD_SEQIN: - /* This case is that cmd is READ0 or READ1 or READ00 */ - flcmdcr_val &= ~DOADR_E; /* ONLY execute 1st cmd */ - break; - case NAND_CMD_PAGEPROG: - addr_len_bytes = flctl->rw_ADRCNT; - flcmdcr_val |= DOCMD2_E | CDSRC_E | SELRW; - if (flctl->chip.options & NAND_BUSWIDTH_16) - flcmncr_val |= SEL_16BIT; - break; - case NAND_CMD_READID: - flcmncr_val &= ~SNAND_E; - flcmdcr_val |= CDSRC_E; - addr_len_bytes = ADRCNT_1; - break; - case NAND_CMD_STATUS: - case NAND_CMD_RESET: - flcmncr_val &= ~SNAND_E; - flcmdcr_val &= ~(DOADR_E | DOSR_E); - break; - default: - break; - } - - /* Set address bytes parameter */ - flcmdcr_val |= addr_len_bytes; - - /* Now actually write */ - writel(flcmncr_val, FLCMNCR(flctl)); - writel(flcmdcr_val, FLCMDCR(flctl)); - writel(flcmcdr_val, FLCMCDR(flctl)); -} - -static int flctl_read_page_hwecc(struct nand_chip *chip, uint8_t *buf, - int oob_required, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - - nand_read_page_op(chip, page, 0, buf, mtd->writesize); - if (oob_required) - chip->legacy.read_buf(chip, chip->oob_poi, mtd->oobsize); - return 0; -} - -static int flctl_write_page_hwecc(struct nand_chip *chip, const uint8_t *buf, - int oob_required, int page) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - - nand_prog_page_begin_op(chip, page, 0, buf, mtd->writesize); - chip->legacy.write_buf(chip, chip->oob_poi, mtd->oobsize); - return nand_prog_page_end_op(chip); -} - -static void execmd_read_page_sector(struct mtd_info *mtd, int page_addr) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - int sector, page_sectors; - enum flctl_ecc_res_t ecc_result; - - page_sectors = flctl->page_size ? 4 : 1; - - set_cmd_regs(mtd, NAND_CMD_READ0, - (NAND_CMD_READSTART << 8) | NAND_CMD_READ0); - - writel(readl(FLCMNCR(flctl)) | ACM_SACCES_MODE | _4ECCCORRECT, - FLCMNCR(flctl)); - writel(readl(FLCMDCR(flctl)) | page_sectors, FLCMDCR(flctl)); - writel(page_addr << 2, FLADR(flctl)); - - empty_fifo(flctl); - start_translation(flctl); - - for (sector = 0; sector < page_sectors; sector++) { - read_fiforeg(flctl, 512, 512 * sector); - - ecc_result = read_ecfiforeg(flctl, - &flctl->done_buff[mtd->writesize + 16 * sector], - sector); - - switch (ecc_result) { - case FL_REPAIRABLE: - dev_info(&flctl->pdev->dev, - "applied ecc on page 0x%x", page_addr); - mtd->ecc_stats.corrected++; - break; - case FL_ERROR: - dev_warn(&flctl->pdev->dev, - "page 0x%x contains corrupted data\n", - page_addr); - mtd->ecc_stats.failed++; - break; - default: - ; - } - } - - wait_completion(flctl); - - writel(readl(FLCMNCR(flctl)) & ~(ACM_SACCES_MODE | _4ECCCORRECT), - FLCMNCR(flctl)); -} - -static void execmd_read_oob(struct mtd_info *mtd, int page_addr) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - int page_sectors = flctl->page_size ? 4 : 1; - int i; - - set_cmd_regs(mtd, NAND_CMD_READ0, - (NAND_CMD_READSTART << 8) | NAND_CMD_READ0); - - empty_fifo(flctl); - - for (i = 0; i < page_sectors; i++) { - set_addr(mtd, (512 + 16) * i + 512 , page_addr); - writel(16, FLDTCNTR(flctl)); - - start_translation(flctl); - read_fiforeg(flctl, 16, 16 * i); - wait_completion(flctl); - } -} - -static void execmd_write_page_sector(struct mtd_info *mtd) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - int page_addr = flctl->seqin_page_addr; - int sector, page_sectors; - - page_sectors = flctl->page_size ? 4 : 1; - - set_cmd_regs(mtd, NAND_CMD_PAGEPROG, - (NAND_CMD_PAGEPROG << 8) | NAND_CMD_SEQIN); - - empty_fifo(flctl); - writel(readl(FLCMNCR(flctl)) | ACM_SACCES_MODE, FLCMNCR(flctl)); - writel(readl(FLCMDCR(flctl)) | page_sectors, FLCMDCR(flctl)); - writel(page_addr << 2, FLADR(flctl)); - start_translation(flctl); - - for (sector = 0; sector < page_sectors; sector++) { - write_fiforeg(flctl, 512, 512 * sector); - write_ec_fiforeg(flctl, 16, mtd->writesize + 16 * sector); - } - - wait_completion(flctl); - writel(readl(FLCMNCR(flctl)) & ~ACM_SACCES_MODE, FLCMNCR(flctl)); -} - -static void execmd_write_oob(struct mtd_info *mtd) -{ - struct sh_flctl *flctl = mtd_to_flctl(mtd); - int page_addr = flctl->seqin_page_addr; - int sector, page_sectors; - - page_sectors = flctl->page_size ? 4 : 1; - - set_cmd_regs(mtd, NAND_CMD_PAGEPROG, - (NAND_CMD_PAGEPROG << 8) | NAND_CMD_SEQIN); - - for (sector = 0; sector < page_sectors; sector++) { - empty_fifo(flctl); - set_addr(mtd, sector * 528 + 512, page_addr); - writel(16, FLDTCNTR(flctl)); /* set read size */ - - start_translation(flctl); - write_fiforeg(flctl, 16, 16 * sector); - wait_completion(flctl); - } -} - -static void flctl_cmdfunc(struct nand_chip *chip, unsigned int command, - int column, int page_addr) -{ - struct mtd_info *mtd = nand_to_mtd(chip); - struct sh_flctl *flctl = mtd_to_flctl(mtd); - uint32_t read_cmd = 0; - - pm_runtime_get_sync(&flctl->pdev->dev); - - flctl->read_bytes = 0; - if (command != NAND_CMD_PAGEPROG) - flctl->index = 0; - - switch (command) { - case NAND_CMD_READ1: - case NAND_CMD_READ0: - if (flctl->hwecc) { - /* read page with hwecc */ - execmd_read_page_sector(mtd, page_addr); - break; - } - if (flctl->page_size) - set_cmd_regs(mtd, command, (NAND_CMD_READSTART << 8) - | command); - else - set_cmd_regs(mtd, command, command); - - set_addr(mtd, 0, page_addr); - - flctl->read_bytes = mtd->writesize + mtd->oobsize; - if (flctl->chip.options & NAND_BUSWIDTH_16) - column >>= 1; - flctl->index += column; - goto read_normal_exit; - - case NAND_CMD_READOOB: - if (flctl->hwecc) { - /* read page with hwecc */ - execmd_read_oob(mtd, page_addr); - break; - } - - if (flctl->page_size) { - set_cmd_regs(mtd, command, (NAND_CMD_READSTART << 8) - | NAND_CMD_READ0); - set_addr(mtd, mtd->writesize, page_addr); - } else { - set_cmd_regs(mtd, command, command); - set_addr(mtd, 0, page_addr); - } - flctl->read_bytes = mtd->oobsize; - goto read_normal_exit; - - case NAND_CMD_RNDOUT: - if (flctl->hwecc) - break; - - if (flctl->page_size) - set_cmd_regs(mtd, command, (NAND_CMD_RNDOUTSTART << 8) - | command); - else - set_cmd_regs(mtd, command, command); - - set_addr(mtd, column, 0); - - flctl->read_bytes = mtd->writesize + mtd->oobsize - column; - goto read_normal_exit; - - case NAND_CMD_READID: - set_cmd_regs(mtd, command, command); - - /* READID is always performed using an 8-bit bus */ - if (flctl->chip.options & NAND_BUSWIDTH_16) - column <<= 1; - set_addr(mtd, column, 0); - - flctl->read_bytes = 8; - writel(flctl->read_bytes, FLDTCNTR(flctl)); /* set read size */ - empty_fifo(flctl); - start_translation(flctl); - read_fiforeg(flctl, flctl->read_bytes, 0); - wait_completion(flctl); - break; - - case NAND_CMD_ERASE1: - flctl->erase1_page_addr = page_addr; - break; - - case NAND_CMD_ERASE2: - set_cmd_regs(mtd, NAND_CMD_ERASE1, - (command << 8) | NAND_CMD_ERASE1); - set_addr(mtd, -1, flctl->erase1_page_addr); - start_translation(flctl); - wait_completion(flctl); - break; - - case NAND_CMD_SEQIN: - if (!flctl->page_size) { - /* output read command */ - if (column >= mtd->writesize) { - column -= mtd->writesize; - read_cmd = NAND_CMD_READOOB; - } else if (column < 256) { - read_cmd = NAND_CMD_READ0; - } else { - column -= 256; - read_cmd = NAND_CMD_READ1; - } - } - flctl->seqin_column = column; - flctl->seqin_page_addr = page_addr; - flctl->seqin_read_cmd = read_cmd; - break; - - case NAND_CMD_PAGEPROG: - empty_fifo(flctl); - if (!flctl->page_size) { - set_cmd_regs(mtd, NAND_CMD_SEQIN, - flctl->seqin_read_cmd); - set_addr(mtd, -1, -1); - writel(0, FLDTCNTR(flctl)); /* set 0 size */ - start_translation(flctl); - wait_completion(flctl); - } - if (flctl->hwecc) { - /* write page with hwecc */ - if (flctl->seqin_column == mtd->writesize) - execmd_write_oob(mtd); - else if (!flctl->seqin_column) - execmd_write_page_sector(mtd); - else - pr_err("Invalid address !?\n"); - break; - } - set_cmd_regs(mtd, command, (command << 8) | NAND_CMD_SEQIN); - set_addr(mtd, flctl->seqin_column, flctl->seqin_page_addr); - writel(flctl->index, FLDTCNTR(flctl)); /* set write size */ - start_translation(flctl); - write_fiforeg(flctl, flctl->index, 0); - wait_completion(flctl); - break; - - case NAND_CMD_STATUS: - set_cmd_regs(mtd, command, command); - set_addr(mtd, -1, -1); - - flctl->read_bytes = 1; - writel(flctl->read_bytes, FLDTCNTR(flctl)); /* set read size */ - start_translation(flctl); - read_datareg(flctl, 0); /* read and end */ - break; - - case NAND_CMD_RESET: - set_cmd_regs(mtd, command, command); - set_addr(mtd, -1, -1); - - writel(0, FLDTCNTR(flctl)); /* set 0 size */ - start_translation(flctl); - wait_completion(flctl); - break; - - default: - break; - } - goto runtime_exit; - -read_normal_exit: - writel(flctl->read_bytes, FLDTCNTR(flctl)); /* set read size */ - empty_fifo(flctl); - start_translation(flctl); - read_fiforeg(flctl, flctl->read_bytes, 0); - wait_completion(flctl); -runtime_exit: - pm_runtime_put_sync(&flctl->pdev->dev); - return; -} - -static void flctl_select_chip(struct nand_chip *chip, int chipnr) -{ - struct sh_flctl *flctl = mtd_to_flctl(nand_to_mtd(chip)); - int ret; - - switch (chipnr) { - case -1: - flctl->flcmncr_base &= ~CE0_ENABLE; - - pm_runtime_get_sync(&flctl->pdev->dev); - writel(flctl->flcmncr_base, FLCMNCR(flctl)); - - if (flctl->qos_request) { - dev_pm_qos_remove_request(&flctl->pm_qos); - flctl->qos_request = 0; - } - - pm_runtime_put_sync(&flctl->pdev->dev); - break; - case 0: - flctl->flcmncr_base |= CE0_ENABLE; - - if (!flctl->qos_request) { - ret = dev_pm_qos_add_request(&flctl->pdev->dev, - &flctl->pm_qos, - DEV_PM_QOS_RESUME_LATENCY, - 100); - if (ret < 0) - dev_err(&flctl->pdev->dev, - "PM QoS request failed: %d\n", ret); - flctl->qos_request = 1; - } - - if (flctl->holden) { - pm_runtime_get_sync(&flctl->pdev->dev); - writel(HOLDEN, FLHOLDCR(flctl)); - pm_runtime_put_sync(&flctl->pdev->dev); - } - break; - default: - BUG(); - } -} - -static void flctl_write_buf(struct nand_chip *chip, const uint8_t *buf, int len) -{ - struct sh_flctl *flctl = mtd_to_flctl(nand_to_mtd(chip)); - - memcpy(&flctl->done_buff[flctl->index], buf, len); - flctl->index += len; -} - -static uint8_t flctl_read_byte(struct nand_chip *chip) -{ - struct sh_flctl *flctl = mtd_to_flctl(nand_to_mtd(chip)); - uint8_t data; - - data = flctl->done_buff[flctl->index]; - flctl->index++; - return data; -} - -static void flctl_read_buf(struct nand_chip *chip, uint8_t *buf, int len) -{ - struct sh_flctl *flctl = mtd_to_flctl(nand_to_mtd(chip)); - - memcpy(buf, &flctl->done_buff[flctl->index], len); - flctl->index += len; -} - -static int flctl_chip_attach_chip(struct nand_chip *chip) -{ - u64 targetsize = nanddev_target_size(&chip->base); - struct mtd_info *mtd = nand_to_mtd(chip); - struct sh_flctl *flctl = mtd_to_flctl(mtd); - - /* - * NAND_BUSWIDTH_16 may have been set by nand_scan_ident(). - * Add the SEL_16BIT flag in flctl->flcmncr_base. - */ - if (chip->options & NAND_BUSWIDTH_16) - flctl->flcmncr_base |= SEL_16BIT; - - if (mtd->writesize == 512) { - flctl->page_size = 0; - if (targetsize > (32 << 20)) { - /* big than 32MB */ - flctl->rw_ADRCNT = ADRCNT_4; - flctl->erase_ADRCNT = ADRCNT_3; - } else if (targetsize > (2 << 16)) { - /* big than 128KB */ - flctl->rw_ADRCNT = ADRCNT_3; - flctl->erase_ADRCNT = ADRCNT_2; - } else { - flctl->rw_ADRCNT = ADRCNT_2; - flctl->erase_ADRCNT = ADRCNT_1; - } - } else { - flctl->page_size = 1; - if (targetsize > (128 << 20)) { - /* big than 128MB */ - flctl->rw_ADRCNT = ADRCNT2_E; - flctl->erase_ADRCNT = ADRCNT_3; - } else if (targetsize > (8 << 16)) { - /* big than 512KB */ - flctl->rw_ADRCNT = ADRCNT_4; - flctl->erase_ADRCNT = ADRCNT_2; - } else { - flctl->rw_ADRCNT = ADRCNT_3; - flctl->erase_ADRCNT = ADRCNT_1; - } - } - - if (flctl->hwecc) { - if (mtd->writesize == 512) { - mtd_set_ooblayout(mtd, &flctl_4secc_oob_smallpage_ops); - chip->badblock_pattern = &flctl_4secc_smallpage; - } else { - mtd_set_ooblayout(mtd, &flctl_4secc_oob_largepage_ops); - chip->badblock_pattern = &flctl_4secc_largepage; - } - - chip->ecc.size = 512; - chip->ecc.bytes = 10; - chip->ecc.strength = 4; - chip->ecc.read_page = flctl_read_page_hwecc; - chip->ecc.write_page = flctl_write_page_hwecc; - chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_ON_HOST; - - /* 4 symbols ECC enabled */ - flctl->flcmncr_base |= _4ECCEN; - } else { - chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT; - chip->ecc.algo = NAND_ECC_ALGO_HAMMING; - } - - return 0; -} - -static const struct nand_controller_ops flctl_nand_controller_ops = { - .attach_chip = flctl_chip_attach_chip, -}; - -static irqreturn_t flctl_handle_flste(int irq, void *dev_id) -{ - struct sh_flctl *flctl = dev_id; - - dev_err(&flctl->pdev->dev, "flste irq: %x\n", readl(FLINTDMACR(flctl))); - writel(flctl->flintdmacr_base, FLINTDMACR(flctl)); - - return IRQ_HANDLED; -} - -struct flctl_soc_config { - unsigned long flcmncr_val; - unsigned has_hwecc:1; - unsigned use_holden:1; -}; - -static struct flctl_soc_config flctl_sh7372_config = { - .flcmncr_val = CLK_16B_12L_4H | TYPESEL_SET | SHBUSSEL, - .has_hwecc = 1, - .use_holden = 1, -}; - -static const struct of_device_id of_flctl_match[] = { - { .compatible = "renesas,shmobile-flctl-sh7372", - .data = &flctl_sh7372_config }, - {}, -}; -MODULE_DEVICE_TABLE(of, of_flctl_match); - -static struct sh_flctl_platform_data *flctl_parse_dt(struct device *dev) -{ - const struct flctl_soc_config *config; - struct sh_flctl_platform_data *pdata; - - config = of_device_get_match_data(dev); - if (!config) { - dev_err(dev, "%s: no OF configuration attached\n", __func__); - return NULL; - } - - pdata = devm_kzalloc(dev, sizeof(struct sh_flctl_platform_data), - GFP_KERNEL); - if (!pdata) - return NULL; - - /* set SoC specific options */ - pdata->flcmncr_val = config->flcmncr_val; - pdata->has_hwecc = config->has_hwecc; - pdata->use_holden = config->use_holden; - - return pdata; -} - -static int flctl_probe(struct platform_device *pdev) -{ - struct resource *res; - struct sh_flctl *flctl; - struct mtd_info *flctl_mtd; - struct nand_chip *nand; - struct sh_flctl_platform_data *pdata; - int ret; - int irq; - - flctl = devm_kzalloc(&pdev->dev, sizeof(struct sh_flctl), GFP_KERNEL); - if (!flctl) - return -ENOMEM; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - flctl->reg = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(flctl->reg)) - return PTR_ERR(flctl->reg); - flctl->fifo = res->start + 0x24; /* FLDTFIFO */ - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - ret = devm_request_irq(&pdev->dev, irq, flctl_handle_flste, IRQF_SHARED, - "flste", flctl); - if (ret) { - dev_err(&pdev->dev, "request interrupt failed.\n"); - return ret; - } - - if (pdev->dev.of_node) - pdata = flctl_parse_dt(&pdev->dev); - else - pdata = dev_get_platdata(&pdev->dev); - - if (!pdata) { - dev_err(&pdev->dev, "no setup data defined\n"); - return -EINVAL; - } - - platform_set_drvdata(pdev, flctl); - nand = &flctl->chip; - flctl_mtd = nand_to_mtd(nand); - nand_set_flash_node(nand, pdev->dev.of_node); - flctl_mtd->dev.parent = &pdev->dev; - flctl->pdev = pdev; - flctl->hwecc = pdata->has_hwecc; - flctl->holden = pdata->use_holden; - flctl->flcmncr_base = pdata->flcmncr_val; - flctl->flintdmacr_base = flctl->hwecc ? (STERINTE | ECERB) : STERINTE; - - /* Set address of hardware control function */ - /* 20 us command delay time */ - nand->legacy.chip_delay = 20; - - nand->legacy.read_byte = flctl_read_byte; - nand->legacy.write_buf = flctl_write_buf; - nand->legacy.read_buf = flctl_read_buf; - nand->legacy.select_chip = flctl_select_chip; - nand->legacy.cmdfunc = flctl_cmdfunc; - nand->legacy.set_features = nand_get_set_features_notsupp; - nand->legacy.get_features = nand_get_set_features_notsupp; - - if (pdata->flcmncr_val & SEL_16BIT) - nand->options |= NAND_BUSWIDTH_16; - - nand->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE; - - pm_runtime_enable(&pdev->dev); - pm_runtime_resume(&pdev->dev); - - flctl_setup_dma(flctl); - - nand->legacy.dummy_controller.ops = &flctl_nand_controller_ops; - ret = nand_scan(nand, 1); - if (ret) - goto err_chip; - - ret = mtd_device_register(flctl_mtd, pdata->parts, pdata->nr_parts); - if (ret) - goto cleanup_nand; - - return 0; - -cleanup_nand: - nand_cleanup(nand); -err_chip: - flctl_release_dma(flctl); - pm_runtime_disable(&pdev->dev); - return ret; -} - -static int flctl_remove(struct platform_device *pdev) -{ - struct sh_flctl *flctl = platform_get_drvdata(pdev); - struct nand_chip *chip = &flctl->chip; - int ret; - - flctl_release_dma(flctl); - ret = mtd_device_unregister(nand_to_mtd(chip)); - WARN_ON(ret); - nand_cleanup(chip); - pm_runtime_disable(&pdev->dev); - - return 0; -} - -static struct platform_driver flctl_driver = { - .remove = flctl_remove, - .driver = { - .name = "sh_flctl", - .of_match_table = of_flctl_match, - }, -}; - -module_platform_driver_probe(flctl_driver, flctl_probe); - -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Yoshihiro Shimoda"); -MODULE_DESCRIPTION("SuperH FLCTL driver"); -MODULE_ALIAS("platform:sh_flctl"); diff --git a/include/linux/mtd/sh_flctl.h b/include/linux/mtd/sh_flctl.h deleted file mode 100644 index 78fc2d4218c808..00000000000000 --- a/include/linux/mtd/sh_flctl.h +++ /dev/null @@ -1,180 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 - * - * SuperH FLCTL nand controller - * - * Copyright © 2008 Renesas Solutions Corp. - */ - -#ifndef __SH_FLCTL_H__ -#define __SH_FLCTL_H__ - -#include -#include -#include -#include -#include - -/* FLCTL registers */ -#define FLCMNCR(f) (f->reg + 0x0) -#define FLCMDCR(f) (f->reg + 0x4) -#define FLCMCDR(f) (f->reg + 0x8) -#define FLADR(f) (f->reg + 0xC) -#define FLADR2(f) (f->reg + 0x3C) -#define FLDATAR(f) (f->reg + 0x10) -#define FLDTCNTR(f) (f->reg + 0x14) -#define FLINTDMACR(f) (f->reg + 0x18) -#define FLBSYTMR(f) (f->reg + 0x1C) -#define FLBSYCNT(f) (f->reg + 0x20) -#define FLDTFIFO(f) (f->reg + 0x24) -#define FLECFIFO(f) (f->reg + 0x28) -#define FLTRCR(f) (f->reg + 0x2C) -#define FLHOLDCR(f) (f->reg + 0x38) -#define FL4ECCRESULT0(f) (f->reg + 0x80) -#define FL4ECCRESULT1(f) (f->reg + 0x84) -#define FL4ECCRESULT2(f) (f->reg + 0x88) -#define FL4ECCRESULT3(f) (f->reg + 0x8C) -#define FL4ECCCR(f) (f->reg + 0x90) -#define FL4ECCCNT(f) (f->reg + 0x94) -#define FLERRADR(f) (f->reg + 0x98) - -/* FLCMNCR control bits */ -#define _4ECCCNTEN (0x1 << 24) -#define _4ECCEN (0x1 << 23) -#define _4ECCCORRECT (0x1 << 22) -#define SHBUSSEL (0x1 << 20) -#define SEL_16BIT (0x1 << 19) -#define SNAND_E (0x1 << 18) /* SNAND (0=512 1=2048)*/ -#define QTSEL_E (0x1 << 17) -#define ENDIAN (0x1 << 16) /* 1 = little endian */ -#define FCKSEL_E (0x1 << 15) -#define ACM_SACCES_MODE (0x01 << 10) -#define NANWF_E (0x1 << 9) -#define SE_D (0x1 << 8) /* Spare area disable */ -#define CE1_ENABLE (0x1 << 4) /* Chip Enable 1 */ -#define CE0_ENABLE (0x1 << 3) /* Chip Enable 0 */ -#define TYPESEL_SET (0x1 << 0) - -/* - * Clock settings using the PULSEx registers from FLCMNCR - * - * Some hardware uses bits called PULSEx instead of FCKSEL_E and QTSEL_E - * to control the clock divider used between the High-Speed Peripheral Clock - * and the FLCTL internal clock. If so, use CLK_8_BIT_xxx for connecting 8 bit - * and CLK_16_BIT_xxx for connecting 16 bit bus bandwith NAND chips. For the 16 - * bit version the divider is seperate for the pulse width of high and low - * signals. - */ -#define PULSE3 (0x1 << 27) -#define PULSE2 (0x1 << 17) -#define PULSE1 (0x1 << 15) -#define PULSE0 (0x1 << 9) -#define CLK_8B_0_5 PULSE1 -#define CLK_8B_1 0x0 -#define CLK_8B_1_5 (PULSE1 | PULSE2) -#define CLK_8B_2 PULSE0 -#define CLK_8B_3 (PULSE0 | PULSE1 | PULSE2) -#define CLK_8B_4 (PULSE0 | PULSE2) -#define CLK_16B_6L_2H PULSE0 -#define CLK_16B_9L_3H (PULSE0 | PULSE1 | PULSE2) -#define CLK_16B_12L_4H (PULSE0 | PULSE2) - -/* FLCMDCR control bits */ -#define ADRCNT2_E (0x1 << 31) /* 5byte address enable */ -#define ADRMD_E (0x1 << 26) /* Sector address access */ -#define CDSRC_E (0x1 << 25) /* Data buffer selection */ -#define DOSR_E (0x1 << 24) /* Status read check */ -#define SELRW (0x1 << 21) /* 0:read 1:write */ -#define DOADR_E (0x1 << 20) /* Address stage execute */ -#define ADRCNT_1 (0x00 << 18) /* Address data bytes: 1byte */ -#define ADRCNT_2 (0x01 << 18) /* Address data bytes: 2byte */ -#define ADRCNT_3 (0x02 << 18) /* Address data bytes: 3byte */ -#define ADRCNT_4 (0x03 << 18) /* Address data bytes: 4byte */ -#define DOCMD2_E (0x1 << 17) /* 2nd cmd stage execute */ -#define DOCMD1_E (0x1 << 16) /* 1st cmd stage execute */ - -/* FLINTDMACR control bits */ -#define ESTERINTE (0x1 << 24) /* ECC error interrupt enable */ -#define AC1CLR (0x1 << 19) /* ECC FIFO clear */ -#define AC0CLR (0x1 << 18) /* Data FIFO clear */ -#define DREQ0EN (0x1 << 16) /* FLDTFIFODMA Request Enable */ -#define ECERB (0x1 << 9) /* ECC error */ -#define STERB (0x1 << 8) /* Status error */ -#define STERINTE (0x1 << 4) /* Status error enable */ - -/* FLTRCR control bits */ -#define TRSTRT (0x1 << 0) /* translation start */ -#define TREND (0x1 << 1) /* translation end */ - -/* - * FLHOLDCR control bits - * - * HOLDEN: Bus Occupancy Enable (inverted) - * Enable this bit when the external bus might be used in between transfers. - * If not set and the bus gets used by other modules, a deadlock occurs. - */ -#define HOLDEN (0x1 << 0) - -/* FL4ECCCR control bits */ -#define _4ECCFA (0x1 << 2) /* 4 symbols correct fault */ -#define _4ECCEND (0x1 << 1) /* 4 symbols end */ -#define _4ECCEXST (0x1 << 0) /* 4 symbols exist */ - -#define LOOP_TIMEOUT_MAX 0x00010000 - -enum flctl_ecc_res_t { - FL_SUCCESS, - FL_REPAIRABLE, - FL_ERROR, - FL_TIMEOUT -}; - -struct dma_chan; - -struct sh_flctl { - struct nand_chip chip; - struct platform_device *pdev; - struct dev_pm_qos_request pm_qos; - void __iomem *reg; - resource_size_t fifo; - - uint8_t done_buff[2048 + 64]; /* max size 2048 + 64 */ - int read_bytes; - unsigned int index; - int seqin_column; /* column in SEQIN cmd */ - int seqin_page_addr; /* page_addr in SEQIN cmd */ - uint32_t seqin_read_cmd; /* read cmd in SEQIN cmd */ - int erase1_page_addr; /* page_addr in ERASE1 cmd */ - uint32_t erase_ADRCNT; /* bits of FLCMDCR in ERASE1 cmd */ - uint32_t rw_ADRCNT; /* bits of FLCMDCR in READ WRITE cmd */ - uint32_t flcmncr_base; /* base value of FLCMNCR */ - uint32_t flintdmacr_base; /* irq enable bits */ - - unsigned page_size:1; /* NAND page size (0 = 512, 1 = 2048) */ - unsigned hwecc:1; /* Hardware ECC (0 = disabled, 1 = enabled) */ - unsigned holden:1; /* Hardware has FLHOLDCR and HOLDEN is set */ - unsigned qos_request:1; /* QoS request to prevent deep power shutdown */ - - /* DMA related objects */ - struct dma_chan *chan_fifo0_rx; - struct dma_chan *chan_fifo0_tx; - struct completion dma_complete; -}; - -struct sh_flctl_platform_data { - struct mtd_partition *parts; - int nr_parts; - unsigned long flcmncr_val; - - unsigned has_hwecc:1; - unsigned use_holden:1; - - unsigned int slave_id_fifo0_tx; - unsigned int slave_id_fifo0_rx; -}; - -static inline struct sh_flctl *mtd_to_flctl(struct mtd_info *mtdinfo) -{ - return container_of(mtd_to_nand(mtdinfo), struct sh_flctl, chip); -} - -#endif /* __SH_FLCTL_H__ */ From patchwork Fri Jan 13 06:23:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643097 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 221D7C71132 for ; Fri, 13 Jan 2023 06:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241077AbjAMG2q (ORCPT ); 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUH-000ljq-PK; Fri, 13 Jan 2023 06:24:26 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 12/22] net/ethernet/8390: remove stnic Date: Fri, 13 Jan 2023 07:23:29 +0100 Message-Id: <20230113062339.1909087-13-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/net/ethernet/8390/Kconfig | 12 -- drivers/net/ethernet/8390/Makefile | 1 - drivers/net/ethernet/8390/stnic.c | 302 ----------------------------- 3 files changed, 315 deletions(-) delete mode 100644 drivers/net/ethernet/8390/stnic.c diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig index eb90de04c88419..a7976743be9ee3 100644 --- a/drivers/net/ethernet/8390/Kconfig +++ b/drivers/net/ethernet/8390/Kconfig @@ -155,18 +155,6 @@ config PCMCIA_PCNET To compile this driver as a module, choose M here: the module will be called pcnet_cs. If unsure, say N. -config STNIC - tristate "National DP83902AV support" - depends on SUPERH - select CRC32 - help - Support for cards based on the National Semiconductor DP83902AV - ST-NIC Serial Network Interface Controller for Twisted Pair. This - is a 10Mbit/sec Ethernet controller. Product overview and specs at - . - - If unsure, say N. - config ULTRA tristate "SMC Ultra support" depends on ISA diff --git a/drivers/net/ethernet/8390/Makefile b/drivers/net/ethernet/8390/Makefile index 85c83c566ec663..3819a3bb75a1c9 100644 --- a/drivers/net/ethernet/8390/Makefile +++ b/drivers/net/ethernet/8390/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_NE2000) += ne.o 8390p.o obj-$(CONFIG_NE2K_PCI) += ne2k-pci.o 8390.o obj-$(CONFIG_PCMCIA_AXNET) += axnet_cs.o 8390.o obj-$(CONFIG_PCMCIA_PCNET) += pcnet_cs.o 8390.o -obj-$(CONFIG_STNIC) += stnic.o 8390.o obj-$(CONFIG_ULTRA) += smc-ultra.o 8390.o obj-$(CONFIG_WD80x3) += wd.o 8390.o obj-$(CONFIG_XSURF100) += xsurf100.o diff --git a/drivers/net/ethernet/8390/stnic.c b/drivers/net/ethernet/8390/stnic.c deleted file mode 100644 index bd89ca8a92dfbc..00000000000000 --- a/drivers/net/ethernet/8390/stnic.c +++ /dev/null @@ -1,302 +0,0 @@ -/* stnic.c : A SH7750 specific part of driver for NS DP83902A ST-NIC. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * Copyright (C) 1999 kaz Kojima - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#ifdef CONFIG_SH_STANDARD_BIOS -#include -#endif - -#include "8390.h" - -#define DRV_NAME "stnic" - -#define byte unsigned char -#define half unsigned short -#define word unsigned int -#define vbyte volatile unsigned char -#define vhalf volatile unsigned short -#define vword volatile unsigned int - -#define STNIC_RUN 0x01 /* 1 == Run, 0 == reset. */ - -#define START_PG 0 /* First page of TX buffer */ -#define STOP_PG 128 /* Last page +1 of RX ring */ - -/* Alias */ -#define STNIC_CR E8390_CMD -#define PG0_RSAR0 EN0_RSARLO -#define PG0_RSAR1 EN0_RSARHI -#define PG0_RBCR0 EN0_RCNTLO -#define PG0_RBCR1 EN0_RCNTHI - -#define CR_RRD E8390_RREAD -#define CR_RWR E8390_RWRITE -#define CR_PG0 E8390_PAGE0 -#define CR_STA E8390_START -#define CR_RDMA E8390_NODMA - -/* FIXME! YOU MUST SET YOUR OWN ETHER ADDRESS. */ -static byte stnic_eadr[6] = -{0x00, 0xc0, 0x6e, 0x00, 0x00, 0x07}; - -static struct net_device *stnic_dev; - -static void stnic_reset (struct net_device *dev); -static void stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr, - int ring_page); -static void stnic_block_input (struct net_device *dev, int count, - struct sk_buff *skb , int ring_offset); -static void stnic_block_output (struct net_device *dev, int count, - const unsigned char *buf, int start_page); - -static void stnic_init (struct net_device *dev); - -static u32 stnic_msg_enable; - -module_param_named(msg_enable, stnic_msg_enable, uint, 0444); -MODULE_PARM_DESC(msg_enable, "Debug message level (see linux/netdevice.h for bitmap)"); - -/* SH7750 specific read/write io. */ -static inline void -STNIC_DELAY (void) -{ - vword trash; - trash = *(vword *) 0xa0000000; - trash = *(vword *) 0xa0000000; - trash = *(vword *) 0xa0000000; -} - -static inline byte -STNIC_READ (int reg) -{ - byte val; - - val = (*(vhalf *) (PA_83902 + ((reg) << 1)) >> 8) & 0xff; - STNIC_DELAY (); - return val; -} - -static inline void -STNIC_WRITE (int reg, byte val) -{ - *(vhalf *) (PA_83902 + ((reg) << 1)) = ((half) (val) << 8); - STNIC_DELAY (); -} - -static int __init stnic_probe(void) -{ - struct net_device *dev; - struct ei_device *ei_local; - int err; - - /* If we are not running on a SolutionEngine, give up now */ - if (! MACH_SE) - return -ENODEV; - - /* New style probing API */ - dev = alloc_ei_netdev(); - if (!dev) - return -ENOMEM; - -#ifdef CONFIG_SH_STANDARD_BIOS - sh_bios_get_node_addr (stnic_eadr); -#endif - eth_hw_addr_set(dev, stnic_eadr); - - /* Set the base address to point to the NIC, not the "real" base! */ - dev->base_addr = 0x1000; - dev->irq = IRQ_STNIC; - dev->netdev_ops = &ei_netdev_ops; - - /* Snarf the interrupt now. There's no point in waiting since we cannot - share and the board will usually be enabled. */ - err = request_irq (dev->irq, ei_interrupt, 0, DRV_NAME, dev); - if (err) { - netdev_emerg(dev, " unable to get IRQ %d.\n", dev->irq); - free_netdev(dev); - return err; - } - - ei_status.name = dev->name; - ei_status.word16 = 1; -#ifdef __LITTLE_ENDIAN__ - ei_status.bigendian = 0; -#else - ei_status.bigendian = 1; -#endif - ei_status.tx_start_page = START_PG; - ei_status.rx_start_page = START_PG + TX_PAGES; - ei_status.stop_page = STOP_PG; - - ei_status.reset_8390 = &stnic_reset; - ei_status.get_8390_hdr = &stnic_get_hdr; - ei_status.block_input = &stnic_block_input; - ei_status.block_output = &stnic_block_output; - - stnic_init (dev); - ei_local = netdev_priv(dev); - ei_local->msg_enable = stnic_msg_enable; - - err = register_netdev(dev); - if (err) { - free_irq(dev->irq, dev); - free_netdev(dev); - return err; - } - stnic_dev = dev; - - netdev_info(dev, "NS ST-NIC 83902A\n"); - - return 0; -} - -static void -stnic_reset (struct net_device *dev) -{ - struct ei_device *ei_local = netdev_priv(dev); - - *(vhalf *) PA_83902_RST = 0; - udelay (5); - netif_warn(ei_local, hw, dev, "8390 reset done (%ld).\n", jiffies); - *(vhalf *) PA_83902_RST = ~0; - udelay (5); -} - -static void -stnic_get_hdr (struct net_device *dev, struct e8390_pkt_hdr *hdr, - int ring_page) -{ - struct ei_device *ei_local = netdev_priv(dev); - - half buf[2]; - - STNIC_WRITE (PG0_RSAR0, 0); - STNIC_WRITE (PG0_RSAR1, ring_page); - STNIC_WRITE (PG0_RBCR0, 4); - STNIC_WRITE (PG0_RBCR1, 0); - STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); - - buf[0] = *(vhalf *) PA_83902_IF; - STNIC_DELAY (); - buf[1] = *(vhalf *) PA_83902_IF; - STNIC_DELAY (); - hdr->next = buf[0] >> 8; - hdr->status = buf[0] & 0xff; -#ifdef __LITTLE_ENDIAN__ - hdr->count = buf[1]; -#else - hdr->count = ((buf[1] >> 8) & 0xff) | (buf[1] << 8); -#endif - - netif_dbg(ei_local, probe, dev, "ring %x status %02x next %02x count %04x.\n", - ring_page, hdr->status, hdr->next, hdr->count); - - STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); -} - -/* Block input and output, similar to the Crynwr packet driver. If you are - porting to a new ethercard look at the packet driver source for hints. - The HP LAN doesn't use shared memory -- we put the packet - out through the "remote DMA" dataport. */ - -static void -stnic_block_input (struct net_device *dev, int length, struct sk_buff *skb, - int offset) -{ - char *buf = skb->data; - half val; - - STNIC_WRITE (PG0_RSAR0, offset & 0xff); - STNIC_WRITE (PG0_RSAR1, offset >> 8); - STNIC_WRITE (PG0_RBCR0, length & 0xff); - STNIC_WRITE (PG0_RBCR1, length >> 8); - STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); - - if (length & 1) - length++; - - while (length > 0) - { - val = *(vhalf *) PA_83902_IF; -#ifdef __LITTLE_ENDIAN__ - *buf++ = val & 0xff; - *buf++ = val >> 8; -#else - *buf++ = val >> 8; - *buf++ = val & 0xff; -#endif - STNIC_DELAY (); - length -= sizeof (half); - } - - STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); -} - -static void -stnic_block_output (struct net_device *dev, int length, - const unsigned char *buf, int output_page) -{ - STNIC_WRITE (PG0_RBCR0, 1); /* Write non-zero value */ - STNIC_WRITE (STNIC_CR, CR_RRD | CR_PG0 | CR_STA); - STNIC_DELAY (); - - STNIC_WRITE (PG0_RBCR0, length & 0xff); - STNIC_WRITE (PG0_RBCR1, length >> 8); - STNIC_WRITE (PG0_RSAR0, 0); - STNIC_WRITE (PG0_RSAR1, output_page); - STNIC_WRITE (STNIC_CR, CR_RWR | CR_PG0 | CR_STA); - - if (length & 1) - length++; - - while (length > 0) - { -#ifdef __LITTLE_ENDIAN__ - *(vhalf *) PA_83902_IF = ((half) buf[1] << 8) | buf[0]; -#else - *(vhalf *) PA_83902_IF = ((half) buf[0] << 8) | buf[1]; -#endif - STNIC_DELAY (); - buf += sizeof (half); - length -= sizeof (half); - } - - STNIC_WRITE (STNIC_CR, CR_RDMA | CR_PG0 | CR_STA); -} - -/* This function resets the STNIC if something screws up. */ -static void -stnic_init (struct net_device *dev) -{ - stnic_reset (dev); - NS8390_init (dev, 0); -} - -static void __exit stnic_cleanup(void) -{ - unregister_netdev(stnic_dev); - free_irq(stnic_dev->irq, stnic_dev); - free_netdev(stnic_dev); -} - -module_init(stnic_probe); -module_exit(stnic_cleanup); -MODULE_LICENSE("GPL"); From patchwork Fri Jan 13 06:23:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642573 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BD689C678DE for ; Fri, 13 Jan 2023 06:29:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240516AbjAMG2h (ORCPT ); Fri, 13 Jan 2023 01:28:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240703AbjAMG0K (ORCPT ); Fri, 13 Jan 2023 01:26:10 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7D4E59FBA; Thu, 12 Jan 2023 22:24:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=UYtxIVSpmMH1XYDAY7FJWv5Cfi/HsfZZkleq/nNm9Uw=; b=FGmCCMVyg/J/LDd53VCAmWvvHd SjKDBgOffbXrp1NTrsMhhHv+fKa003jcLOks15DqfShUdbnxAhNIFRM2NSfl7XNQlFYmA2nIB5pd3 18kopN5bw8wlOYCdnpKB6fCAs/R2kJGbMJgqU6leRj/q7GTrVwrCQlwNcduG7xmi3tJMkH4PGwg8t 5NSqH0Z4uJHNdUoGz9t3t0x8nOR8iL/jB6Iq4fOUMDfkW0fbOoSZotzgCKRxKr7TDB8DCS8psj8ep mpDSvDh9CmgJ7bpf8XvejVWWNoIH413VHBYRgX7Ti7jsugFz8NQa+n4/JrcVIP/PeAFvJm9WU/Rhy 7xT7m2yg==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUQ-000lrU-4y; Fri, 13 Jan 2023 06:24:35 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 14/22] remove drivers/sh Date: Fri, 13 Jan 2023 07:23:31 +0100 Message-Id: <20230113062339.1909087-15-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed these drivers are dead code. Signed-off-by: Christoph Hellwig --- drivers/Makefile | 1 - drivers/sh/Kconfig | 6 - drivers/sh/Makefile | 12 - drivers/sh/clk/Makefile | 4 - drivers/sh/clk/core.c | 624 ---------------- drivers/sh/clk/cpg.c | 477 ------------ drivers/sh/intc/Kconfig | 44 -- drivers/sh/intc/Makefile | 6 - drivers/sh/intc/access.c | 246 ------- drivers/sh/intc/balancing.c | 97 --- drivers/sh/intc/chip.c | 211 ------ drivers/sh/intc/core.c | 501 ------------- drivers/sh/intc/handle.c | 306 -------- drivers/sh/intc/internals.h | 191 ----- drivers/sh/intc/irqdomain.c | 68 -- drivers/sh/intc/userimask.c | 84 --- drivers/sh/intc/virq-debugfs.c | 54 -- drivers/sh/intc/virq.c | 269 ------- drivers/sh/maple/Makefile | 4 - drivers/sh/maple/maple.c | 895 ----------------------- drivers/sh/pm_runtime.c | 40 - drivers/sh/superhyway/Makefile | 8 - drivers/sh/superhyway/superhyway-sysfs.c | 54 -- drivers/sh/superhyway/superhyway.c | 234 ------ include/linux/sh_clk.h | 213 ------ include/linux/superhyway.h | 107 --- 26 files changed, 4756 deletions(-) delete mode 100644 drivers/sh/Kconfig delete mode 100644 drivers/sh/Makefile delete mode 100644 drivers/sh/clk/Makefile delete mode 100644 drivers/sh/clk/core.c delete mode 100644 drivers/sh/clk/cpg.c delete mode 100644 drivers/sh/intc/Kconfig delete mode 100644 drivers/sh/intc/Makefile delete mode 100644 drivers/sh/intc/access.c delete mode 100644 drivers/sh/intc/balancing.c delete mode 100644 drivers/sh/intc/chip.c delete mode 100644 drivers/sh/intc/core.c delete mode 100644 drivers/sh/intc/handle.c delete mode 100644 drivers/sh/intc/internals.h delete mode 100644 drivers/sh/intc/irqdomain.c delete mode 100644 drivers/sh/intc/userimask.c delete mode 100644 drivers/sh/intc/virq-debugfs.c delete mode 100644 drivers/sh/intc/virq.c delete mode 100644 drivers/sh/maple/Makefile delete mode 100644 drivers/sh/maple/maple.c delete mode 100644 drivers/sh/pm_runtime.c delete mode 100644 drivers/sh/superhyway/Makefile delete mode 100644 drivers/sh/superhyway/superhyway-sysfs.c delete mode 100644 drivers/sh/superhyway/superhyway.c delete mode 100644 include/linux/sh_clk.h delete mode 100644 include/linux/superhyway.h diff --git a/drivers/Makefile b/drivers/Makefile index bdf1c66141c9bd..b97a69a4c40b91 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -134,7 +134,6 @@ obj-$(CONFIG_NEW_LEDS) += leds/ obj-$(CONFIG_INFINIBAND) += infiniband/ obj-y += firmware/ obj-$(CONFIG_CRYPTO) += crypto/ -obj-$(CONFIG_SUPERH) += sh/ obj-y += clocksource/ obj-$(CONFIG_DCA) += dca/ obj-$(CONFIG_HID) += hid/ diff --git a/drivers/sh/Kconfig b/drivers/sh/Kconfig deleted file mode 100644 index 3588fcc9c0d23b..00000000000000 --- a/drivers/sh/Kconfig +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -menu "SuperH / SH-Mobile Driver Options" - -source "drivers/sh/intc/Kconfig" - -endmenu diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile deleted file mode 100644 index c53262835e85e2..00000000000000 --- a/drivers/sh/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Makefile for the SuperH specific drivers. -# -obj-$(CONFIG_SH_INTC) += intc/ -ifneq ($(CONFIG_COMMON_CLK),y) -obj-$(CONFIG_HAVE_CLK) += clk/ -endif -obj-$(CONFIG_MAPLE) += maple/ -obj-$(CONFIG_SUPERHYWAY) += superhyway/ - -obj-y += pm_runtime.o diff --git a/drivers/sh/clk/Makefile b/drivers/sh/clk/Makefile deleted file mode 100644 index 0158ff3ba9d544..00000000000000 --- a/drivers/sh/clk/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -obj-y := core.o - -obj-$(CONFIG_SH_CLK_CPG) += cpg.o diff --git a/drivers/sh/clk/core.c b/drivers/sh/clk/core.c deleted file mode 100644 index d996782a710642..00000000000000 --- a/drivers/sh/clk/core.c +++ /dev/null @@ -1,624 +0,0 @@ -/* - * SuperH clock framework - * - * Copyright (C) 2005 - 2010 Paul Mundt - * - * This clock framework is derived from the OMAP version by: - * - * Copyright (C) 2004 - 2008 Nokia Corporation - * Written by Tuukka Tikkanen - * - * Modified for omap shared clock framework by Tony Lindgren - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "clock: " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static LIST_HEAD(clock_list); -static DEFINE_SPINLOCK(clock_lock); -static DEFINE_MUTEX(clock_list_sem); - -/* clock disable operations are not passed on to hardware during boot */ -static int allow_disable; - -void clk_rate_table_build(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - int nr_freqs, - struct clk_div_mult_table *src_table, - unsigned long *bitmap) -{ - unsigned long mult, div; - unsigned long freq; - int i; - - clk->nr_freqs = nr_freqs; - - for (i = 0; i < nr_freqs; i++) { - div = 1; - mult = 1; - - if (src_table->divisors && i < src_table->nr_divisors) - div = src_table->divisors[i]; - - if (src_table->multipliers && i < src_table->nr_multipliers) - mult = src_table->multipliers[i]; - - if (!div || !mult || (bitmap && !test_bit(i, bitmap))) - freq = CPUFREQ_ENTRY_INVALID; - else - freq = clk->parent->rate * mult / div; - - freq_table[i].driver_data = i; - freq_table[i].frequency = freq; - } - - /* Termination entry */ - freq_table[i].driver_data = i; - freq_table[i].frequency = CPUFREQ_TABLE_END; -} - -struct clk_rate_round_data; - -struct clk_rate_round_data { - unsigned long rate; - unsigned int min, max; - long (*func)(unsigned int, struct clk_rate_round_data *); - void *arg; -}; - -#define for_each_frequency(pos, r, freq) \ - for (pos = r->min, freq = r->func(pos, r); \ - pos <= r->max; pos++, freq = r->func(pos, r)) \ - if (unlikely(freq == 0)) \ - ; \ - else - -static long clk_rate_round_helper(struct clk_rate_round_data *rounder) -{ - unsigned long rate_error, rate_error_prev = ~0UL; - unsigned long highest, lowest, freq; - long rate_best_fit = -ENOENT; - int i; - - highest = 0; - lowest = ~0UL; - - for_each_frequency(i, rounder, freq) { - if (freq > highest) - highest = freq; - if (freq < lowest) - lowest = freq; - - rate_error = abs(freq - rounder->rate); - if (rate_error < rate_error_prev) { - rate_best_fit = freq; - rate_error_prev = rate_error; - } - - if (rate_error == 0) - break; - } - - if (rounder->rate >= highest) - rate_best_fit = highest; - if (rounder->rate <= lowest) - rate_best_fit = lowest; - - return rate_best_fit; -} - -static long clk_rate_table_iter(unsigned int pos, - struct clk_rate_round_data *rounder) -{ - struct cpufreq_frequency_table *freq_table = rounder->arg; - unsigned long freq = freq_table[pos].frequency; - - if (freq == CPUFREQ_ENTRY_INVALID) - freq = 0; - - return freq; -} - -long clk_rate_table_round(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - unsigned long rate) -{ - struct clk_rate_round_data table_round = { - .min = 0, - .max = clk->nr_freqs - 1, - .func = clk_rate_table_iter, - .arg = freq_table, - .rate = rate, - }; - - if (clk->nr_freqs < 1) - return -ENOSYS; - - return clk_rate_round_helper(&table_round); -} - -static long clk_rate_div_range_iter(unsigned int pos, - struct clk_rate_round_data *rounder) -{ - return clk_get_rate(rounder->arg) / pos; -} - -long clk_rate_div_range_round(struct clk *clk, unsigned int div_min, - unsigned int div_max, unsigned long rate) -{ - struct clk_rate_round_data div_range_round = { - .min = div_min, - .max = div_max, - .func = clk_rate_div_range_iter, - .arg = clk_get_parent(clk), - .rate = rate, - }; - - return clk_rate_round_helper(&div_range_round); -} - -static long clk_rate_mult_range_iter(unsigned int pos, - struct clk_rate_round_data *rounder) -{ - return clk_get_rate(rounder->arg) * pos; -} - -long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min, - unsigned int mult_max, unsigned long rate) -{ - struct clk_rate_round_data mult_range_round = { - .min = mult_min, - .max = mult_max, - .func = clk_rate_mult_range_iter, - .arg = clk_get_parent(clk), - .rate = rate, - }; - - return clk_rate_round_helper(&mult_range_round); -} - -int clk_rate_table_find(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - unsigned long rate) -{ - struct cpufreq_frequency_table *pos; - int idx; - - cpufreq_for_each_valid_entry_idx(pos, freq_table, idx) - if (pos->frequency == rate) - return idx; - - return -ENOENT; -} - -/* Used for clocks that always have same value as the parent clock */ -unsigned long followparent_recalc(struct clk *clk) -{ - return clk->parent ? clk->parent->rate : 0; -} - -int clk_reparent(struct clk *child, struct clk *parent) -{ - list_del_init(&child->sibling); - if (parent) - list_add(&child->sibling, &parent->children); - child->parent = parent; - - return 0; -} - -/* Propagate rate to children */ -void propagate_rate(struct clk *tclk) -{ - struct clk *clkp; - - list_for_each_entry(clkp, &tclk->children, sibling) { - if (clkp->ops && clkp->ops->recalc) - clkp->rate = clkp->ops->recalc(clkp); - - propagate_rate(clkp); - } -} - -static void __clk_disable(struct clk *clk) -{ - if (WARN(!clk->usecount, "Trying to disable clock %p with 0 usecount\n", - clk)) - return; - - if (!(--clk->usecount)) { - if (likely(allow_disable && clk->ops && clk->ops->disable)) - clk->ops->disable(clk); - if (likely(clk->parent)) - __clk_disable(clk->parent); - } -} - -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - if (!clk) - return; - - spin_lock_irqsave(&clock_lock, flags); - __clk_disable(clk); - spin_unlock_irqrestore(&clock_lock, flags); -} -EXPORT_SYMBOL_GPL(clk_disable); - -static int __clk_enable(struct clk *clk) -{ - int ret = 0; - - if (clk->usecount++ == 0) { - if (clk->parent) { - ret = __clk_enable(clk->parent); - if (unlikely(ret)) - goto err; - } - - if (clk->ops && clk->ops->enable) { - ret = clk->ops->enable(clk); - if (ret) { - if (clk->parent) - __clk_disable(clk->parent); - goto err; - } - } - } - - return ret; -err: - clk->usecount--; - return ret; -} - -int clk_enable(struct clk *clk) -{ - unsigned long flags; - int ret; - - if (!clk) - return -EINVAL; - - spin_lock_irqsave(&clock_lock, flags); - ret = __clk_enable(clk); - spin_unlock_irqrestore(&clock_lock, flags); - - return ret; -} -EXPORT_SYMBOL_GPL(clk_enable); - -static LIST_HEAD(root_clks); - -/** - * recalculate_root_clocks - recalculate and propagate all root clocks - * - * Recalculates all root clocks (clocks with no parent), which if the - * clock's .recalc is set correctly, should also propagate their rates. - * Called at init. - */ -void recalculate_root_clocks(void) -{ - struct clk *clkp; - - list_for_each_entry(clkp, &root_clks, sibling) { - if (clkp->ops && clkp->ops->recalc) - clkp->rate = clkp->ops->recalc(clkp); - propagate_rate(clkp); - } -} - -static struct clk_mapping dummy_mapping; - -static struct clk *lookup_root_clock(struct clk *clk) -{ - while (clk->parent) - clk = clk->parent; - - return clk; -} - -static int clk_establish_mapping(struct clk *clk) -{ - struct clk_mapping *mapping = clk->mapping; - - /* - * Propagate mappings. - */ - if (!mapping) { - struct clk *clkp; - - /* - * dummy mapping for root clocks with no specified ranges - */ - if (!clk->parent) { - clk->mapping = &dummy_mapping; - goto out; - } - - /* - * If we're on a child clock and it provides no mapping of its - * own, inherit the mapping from its root clock. - */ - clkp = lookup_root_clock(clk); - mapping = clkp->mapping; - BUG_ON(!mapping); - } - - /* - * Establish initial mapping. - */ - if (!mapping->base && mapping->phys) { - kref_init(&mapping->ref); - - mapping->base = ioremap(mapping->phys, mapping->len); - if (unlikely(!mapping->base)) - return -ENXIO; - } else if (mapping->base) { - /* - * Bump the refcount for an existing mapping - */ - kref_get(&mapping->ref); - } - - clk->mapping = mapping; -out: - clk->mapped_reg = clk->mapping->base; - clk->mapped_reg += (phys_addr_t)clk->enable_reg - clk->mapping->phys; - return 0; -} - -static void clk_destroy_mapping(struct kref *kref) -{ - struct clk_mapping *mapping; - - mapping = container_of(kref, struct clk_mapping, ref); - - iounmap(mapping->base); -} - -static void clk_teardown_mapping(struct clk *clk) -{ - struct clk_mapping *mapping = clk->mapping; - - /* Nothing to do */ - if (mapping == &dummy_mapping) - goto out; - - kref_put(&mapping->ref, clk_destroy_mapping); - clk->mapping = NULL; -out: - clk->mapped_reg = NULL; -} - -int clk_register(struct clk *clk) -{ - int ret; - - if (IS_ERR_OR_NULL(clk)) - return -EINVAL; - - /* - * trap out already registered clocks - */ - if (clk->node.next || clk->node.prev) - return 0; - - mutex_lock(&clock_list_sem); - - INIT_LIST_HEAD(&clk->children); - clk->usecount = 0; - - ret = clk_establish_mapping(clk); - if (unlikely(ret)) - goto out_unlock; - - if (clk->parent) - list_add(&clk->sibling, &clk->parent->children); - else - list_add(&clk->sibling, &root_clks); - - list_add(&clk->node, &clock_list); - -#ifdef CONFIG_SH_CLK_CPG_LEGACY - if (clk->ops && clk->ops->init) - clk->ops->init(clk); -#endif - -out_unlock: - mutex_unlock(&clock_list_sem); - - return ret; -} -EXPORT_SYMBOL_GPL(clk_register); - -void clk_unregister(struct clk *clk) -{ - mutex_lock(&clock_list_sem); - list_del(&clk->sibling); - list_del(&clk->node); - clk_teardown_mapping(clk); - mutex_unlock(&clock_list_sem); -} -EXPORT_SYMBOL_GPL(clk_unregister); - -void clk_enable_init_clocks(void) -{ - struct clk *clkp; - - list_for_each_entry(clkp, &clock_list, node) - if (clkp->flags & CLK_ENABLE_ON_INIT) - clk_enable(clkp); -} - -unsigned long clk_get_rate(struct clk *clk) -{ - if (!clk) - return 0; - - return clk->rate; -} -EXPORT_SYMBOL_GPL(clk_get_rate); - -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - int ret = -EOPNOTSUPP; - unsigned long flags; - - if (!clk) - return 0; - - spin_lock_irqsave(&clock_lock, flags); - - if (likely(clk->ops && clk->ops->set_rate)) { - ret = clk->ops->set_rate(clk, rate); - if (ret != 0) - goto out_unlock; - } else { - clk->rate = rate; - ret = 0; - } - - if (clk->ops && clk->ops->recalc) - clk->rate = clk->ops->recalc(clk); - - propagate_rate(clk); - -out_unlock: - spin_unlock_irqrestore(&clock_lock, flags); - - return ret; -} -EXPORT_SYMBOL_GPL(clk_set_rate); - -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - unsigned long flags; - int ret = -EINVAL; - - if (!parent || !clk) - return ret; - if (clk->parent == parent) - return 0; - - spin_lock_irqsave(&clock_lock, flags); - if (clk->usecount == 0) { - if (clk->ops->set_parent) - ret = clk->ops->set_parent(clk, parent); - else - ret = clk_reparent(clk, parent); - - if (ret == 0) { - if (clk->ops->recalc) - clk->rate = clk->ops->recalc(clk); - pr_debug("set parent of %p to %p (new rate %ld)\n", - clk, clk->parent, clk->rate); - propagate_rate(clk); - } - } else - ret = -EBUSY; - spin_unlock_irqrestore(&clock_lock, flags); - - return ret; -} -EXPORT_SYMBOL_GPL(clk_set_parent); - -struct clk *clk_get_parent(struct clk *clk) -{ - if (!clk) - return NULL; - - return clk->parent; -} -EXPORT_SYMBOL_GPL(clk_get_parent); - -long clk_round_rate(struct clk *clk, unsigned long rate) -{ - if (!clk) - return 0; - - if (likely(clk->ops && clk->ops->round_rate)) { - unsigned long flags, rounded; - - spin_lock_irqsave(&clock_lock, flags); - rounded = clk->ops->round_rate(clk, rate); - spin_unlock_irqrestore(&clock_lock, flags); - - return rounded; - } - - return clk_get_rate(clk); -} -EXPORT_SYMBOL_GPL(clk_round_rate); - -#ifdef CONFIG_PM -static void clks_core_resume(void) -{ - struct clk *clkp; - - list_for_each_entry(clkp, &clock_list, node) { - if (likely(clkp->usecount && clkp->ops)) { - unsigned long rate = clkp->rate; - - if (likely(clkp->ops->set_parent)) - clkp->ops->set_parent(clkp, - clkp->parent); - if (likely(clkp->ops->set_rate)) - clkp->ops->set_rate(clkp, rate); - else if (likely(clkp->ops->recalc)) - clkp->rate = clkp->ops->recalc(clkp); - } - } -} - -static struct syscore_ops clks_syscore_ops = { - .resume = clks_core_resume, -}; - -static int __init clk_syscore_init(void) -{ - register_syscore_ops(&clks_syscore_ops); - - return 0; -} -subsys_initcall(clk_syscore_init); -#endif - -static int __init clk_late_init(void) -{ - unsigned long flags; - struct clk *clk; - - /* disable all clocks with zero use count */ - mutex_lock(&clock_list_sem); - spin_lock_irqsave(&clock_lock, flags); - - list_for_each_entry(clk, &clock_list, node) - if (!clk->usecount && clk->ops && clk->ops->disable) - clk->ops->disable(clk); - - /* from now on allow clock disable operations */ - allow_disable = 1; - - spin_unlock_irqrestore(&clock_lock, flags); - mutex_unlock(&clock_list_sem); - return 0; -} -late_initcall(clk_late_init); diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c deleted file mode 100644 index fd72d9088bdcbc..00000000000000 --- a/drivers/sh/clk/cpg.c +++ /dev/null @@ -1,477 +0,0 @@ -/* - * Helper routines for SuperH Clock Pulse Generator blocks (CPG). - * - * Copyright (C) 2010 Magnus Damm - * Copyright (C) 2010 - 2012 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include -#include - -#define CPG_CKSTP_BIT BIT(8) - -static unsigned int sh_clk_read(struct clk *clk) -{ - if (clk->flags & CLK_ENABLE_REG_8BIT) - return ioread8(clk->mapped_reg); - else if (clk->flags & CLK_ENABLE_REG_16BIT) - return ioread16(clk->mapped_reg); - - return ioread32(clk->mapped_reg); -} - -static void sh_clk_write(int value, struct clk *clk) -{ - if (clk->flags & CLK_ENABLE_REG_8BIT) - iowrite8(value, clk->mapped_reg); - else if (clk->flags & CLK_ENABLE_REG_16BIT) - iowrite16(value, clk->mapped_reg); - else - iowrite32(value, clk->mapped_reg); -} - -static int sh_clk_mstp_enable(struct clk *clk) -{ - sh_clk_write(sh_clk_read(clk) & ~(1 << clk->enable_bit), clk); - if (clk->status_reg) { - unsigned int (*read)(const void __iomem *addr); - int i; - void __iomem *mapped_status = (phys_addr_t)clk->status_reg - - (phys_addr_t)clk->enable_reg + clk->mapped_reg; - - if (clk->flags & CLK_ENABLE_REG_8BIT) - read = ioread8; - else if (clk->flags & CLK_ENABLE_REG_16BIT) - read = ioread16; - else - read = ioread32; - - for (i = 1000; - (read(mapped_status) & (1 << clk->enable_bit)) && i; - i--) - cpu_relax(); - if (!i) { - pr_err("cpg: failed to enable %p[%d]\n", - clk->enable_reg, clk->enable_bit); - return -ETIMEDOUT; - } - } - return 0; -} - -static void sh_clk_mstp_disable(struct clk *clk) -{ - sh_clk_write(sh_clk_read(clk) | (1 << clk->enable_bit), clk); -} - -static struct sh_clk_ops sh_clk_mstp_clk_ops = { - .enable = sh_clk_mstp_enable, - .disable = sh_clk_mstp_disable, - .recalc = followparent_recalc, -}; - -int __init sh_clk_mstp_register(struct clk *clks, int nr) -{ - struct clk *clkp; - int ret = 0; - int k; - - for (k = 0; !ret && (k < nr); k++) { - clkp = clks + k; - clkp->ops = &sh_clk_mstp_clk_ops; - ret |= clk_register(clkp); - } - - return ret; -} - -/* - * Div/mult table lookup helpers - */ -static inline struct clk_div_table *clk_to_div_table(struct clk *clk) -{ - return clk->priv; -} - -static inline struct clk_div_mult_table *clk_to_div_mult_table(struct clk *clk) -{ - return clk_to_div_table(clk)->div_mult_table; -} - -/* - * Common div ops - */ -static long sh_clk_div_round_rate(struct clk *clk, unsigned long rate) -{ - return clk_rate_table_round(clk, clk->freq_table, rate); -} - -static unsigned long sh_clk_div_recalc(struct clk *clk) -{ - struct clk_div_mult_table *table = clk_to_div_mult_table(clk); - unsigned int idx; - - clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, - table, clk->arch_flags ? &clk->arch_flags : NULL); - - idx = (sh_clk_read(clk) >> clk->enable_bit) & clk->div_mask; - - return clk->freq_table[idx].frequency; -} - -static int sh_clk_div_set_rate(struct clk *clk, unsigned long rate) -{ - struct clk_div_table *dt = clk_to_div_table(clk); - unsigned long value; - int idx; - - idx = clk_rate_table_find(clk, clk->freq_table, rate); - if (idx < 0) - return idx; - - value = sh_clk_read(clk); - value &= ~(clk->div_mask << clk->enable_bit); - value |= (idx << clk->enable_bit); - sh_clk_write(value, clk); - - /* XXX: Should use a post-change notifier */ - if (dt->kick) - dt->kick(clk); - - return 0; -} - -static int sh_clk_div_enable(struct clk *clk) -{ - if (clk->div_mask == SH_CLK_DIV6_MSK) { - int ret = sh_clk_div_set_rate(clk, clk->rate); - if (ret < 0) - return ret; - } - - sh_clk_write(sh_clk_read(clk) & ~CPG_CKSTP_BIT, clk); - return 0; -} - -static void sh_clk_div_disable(struct clk *clk) -{ - unsigned int val; - - val = sh_clk_read(clk); - val |= CPG_CKSTP_BIT; - - /* - * div6 clocks require the divisor field to be non-zero or the - * above CKSTP toggle silently fails. Ensure that the divisor - * array is reset to its initial state on disable. - */ - if (clk->flags & CLK_MASK_DIV_ON_DISABLE) - val |= clk->div_mask; - - sh_clk_write(val, clk); -} - -static struct sh_clk_ops sh_clk_div_clk_ops = { - .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div_set_rate, - .round_rate = sh_clk_div_round_rate, -}; - -static struct sh_clk_ops sh_clk_div_enable_clk_ops = { - .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div_set_rate, - .round_rate = sh_clk_div_round_rate, - .enable = sh_clk_div_enable, - .disable = sh_clk_div_disable, -}; - -static int __init sh_clk_init_parent(struct clk *clk) -{ - u32 val; - - if (clk->parent) - return 0; - - if (!clk->parent_table || !clk->parent_num) - return 0; - - if (!clk->src_width) { - pr_err("sh_clk_init_parent: cannot select parent clock\n"); - return -EINVAL; - } - - val = (sh_clk_read(clk) >> clk->src_shift); - val &= (1 << clk->src_width) - 1; - - if (val >= clk->parent_num) { - pr_err("sh_clk_init_parent: parent table size failed\n"); - return -EINVAL; - } - - clk_reparent(clk, clk->parent_table[val]); - if (!clk->parent) { - pr_err("sh_clk_init_parent: unable to set parent"); - return -EINVAL; - } - - return 0; -} - -static int __init sh_clk_div_register_ops(struct clk *clks, int nr, - struct clk_div_table *table, struct sh_clk_ops *ops) -{ - struct clk *clkp; - void *freq_table; - int nr_divs = table->div_mult_table->nr_divisors; - int freq_table_size = sizeof(struct cpufreq_frequency_table); - int ret = 0; - int k; - - freq_table_size *= (nr_divs + 1); - freq_table = kcalloc(nr, freq_table_size, GFP_KERNEL); - if (!freq_table) { - pr_err("%s: unable to alloc memory\n", __func__); - return -ENOMEM; - } - - for (k = 0; !ret && (k < nr); k++) { - clkp = clks + k; - - clkp->ops = ops; - clkp->priv = table; - - clkp->freq_table = freq_table + (k * freq_table_size); - clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END; - - ret = clk_register(clkp); - if (ret == 0) - ret = sh_clk_init_parent(clkp); - } - - return ret; -} - -/* - * div6 support - */ -static int sh_clk_div6_divisors[64] = { - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, - 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, - 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, - 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 -}; - -static struct clk_div_mult_table div6_div_mult_table = { - .divisors = sh_clk_div6_divisors, - .nr_divisors = ARRAY_SIZE(sh_clk_div6_divisors), -}; - -static struct clk_div_table sh_clk_div6_table = { - .div_mult_table = &div6_div_mult_table, -}; - -static int sh_clk_div6_set_parent(struct clk *clk, struct clk *parent) -{ - struct clk_div_mult_table *table = clk_to_div_mult_table(clk); - u32 value; - int ret, i; - - if (!clk->parent_table || !clk->parent_num) - return -EINVAL; - - /* Search the parent */ - for (i = 0; i < clk->parent_num; i++) - if (clk->parent_table[i] == parent) - break; - - if (i == clk->parent_num) - return -ENODEV; - - ret = clk_reparent(clk, parent); - if (ret < 0) - return ret; - - value = sh_clk_read(clk) & - ~(((1 << clk->src_width) - 1) << clk->src_shift); - - sh_clk_write(value | (i << clk->src_shift), clk); - - /* Rebuild the frequency table */ - clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, - table, NULL); - - return 0; -} - -static struct sh_clk_ops sh_clk_div6_reparent_clk_ops = { - .recalc = sh_clk_div_recalc, - .round_rate = sh_clk_div_round_rate, - .set_rate = sh_clk_div_set_rate, - .enable = sh_clk_div_enable, - .disable = sh_clk_div_disable, - .set_parent = sh_clk_div6_set_parent, -}; - -int __init sh_clk_div6_register(struct clk *clks, int nr) -{ - return sh_clk_div_register_ops(clks, nr, &sh_clk_div6_table, - &sh_clk_div_enable_clk_ops); -} - -int __init sh_clk_div6_reparent_register(struct clk *clks, int nr) -{ - return sh_clk_div_register_ops(clks, nr, &sh_clk_div6_table, - &sh_clk_div6_reparent_clk_ops); -} - -/* - * div4 support - */ -static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) -{ - struct clk_div_mult_table *table = clk_to_div_mult_table(clk); - u32 value; - int ret; - - /* we really need a better way to determine parent index, but for - * now assume internal parent comes with CLK_ENABLE_ON_INIT set, - * no CLK_ENABLE_ON_INIT means external clock... - */ - - if (parent->flags & CLK_ENABLE_ON_INIT) - value = sh_clk_read(clk) & ~(1 << 7); - else - value = sh_clk_read(clk) | (1 << 7); - - ret = clk_reparent(clk, parent); - if (ret < 0) - return ret; - - sh_clk_write(value, clk); - - /* Rebiuld the frequency table */ - clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, - table, &clk->arch_flags); - - return 0; -} - -static struct sh_clk_ops sh_clk_div4_reparent_clk_ops = { - .recalc = sh_clk_div_recalc, - .set_rate = sh_clk_div_set_rate, - .round_rate = sh_clk_div_round_rate, - .enable = sh_clk_div_enable, - .disable = sh_clk_div_disable, - .set_parent = sh_clk_div4_set_parent, -}; - -int __init sh_clk_div4_register(struct clk *clks, int nr, - struct clk_div4_table *table) -{ - return sh_clk_div_register_ops(clks, nr, table, &sh_clk_div_clk_ops); -} - -int __init sh_clk_div4_enable_register(struct clk *clks, int nr, - struct clk_div4_table *table) -{ - return sh_clk_div_register_ops(clks, nr, table, - &sh_clk_div_enable_clk_ops); -} - -int __init sh_clk_div4_reparent_register(struct clk *clks, int nr, - struct clk_div4_table *table) -{ - return sh_clk_div_register_ops(clks, nr, table, - &sh_clk_div4_reparent_clk_ops); -} - -/* FSI-DIV */ -static unsigned long fsidiv_recalc(struct clk *clk) -{ - u32 value; - - value = __raw_readl(clk->mapping->base); - - value >>= 16; - if (value < 2) - return clk->parent->rate; - - return clk->parent->rate / value; -} - -static long fsidiv_round_rate(struct clk *clk, unsigned long rate) -{ - return clk_rate_div_range_round(clk, 1, 0xffff, rate); -} - -static void fsidiv_disable(struct clk *clk) -{ - __raw_writel(0, clk->mapping->base); -} - -static int fsidiv_enable(struct clk *clk) -{ - u32 value; - - value = __raw_readl(clk->mapping->base) >> 16; - if (value < 2) - return 0; - - __raw_writel((value << 16) | 0x3, clk->mapping->base); - - return 0; -} - -static int fsidiv_set_rate(struct clk *clk, unsigned long rate) -{ - int idx; - - idx = (clk->parent->rate / rate) & 0xffff; - if (idx < 2) - __raw_writel(0, clk->mapping->base); - else - __raw_writel(idx << 16, clk->mapping->base); - - return 0; -} - -static struct sh_clk_ops fsidiv_clk_ops = { - .recalc = fsidiv_recalc, - .round_rate = fsidiv_round_rate, - .set_rate = fsidiv_set_rate, - .enable = fsidiv_enable, - .disable = fsidiv_disable, -}; - -int __init sh_clk_fsidiv_register(struct clk *clks, int nr) -{ - struct clk_mapping *map; - int i; - - for (i = 0; i < nr; i++) { - - map = kzalloc(sizeof(struct clk_mapping), GFP_KERNEL); - if (!map) { - pr_err("%s: unable to alloc memory\n", __func__); - return -ENOMEM; - } - - /* clks[i].enable_reg came from SH_CLK_FSIDIV() */ - map->phys = (phys_addr_t)clks[i].enable_reg; - map->len = 8; - - clks[i].enable_reg = 0; /* remove .enable_reg */ - clks[i].ops = &fsidiv_clk_ops; - clks[i].mapping = map; - - clk_register(&clks[i]); - } - - return 0; -} diff --git a/drivers/sh/intc/Kconfig b/drivers/sh/intc/Kconfig deleted file mode 100644 index 5c701709fef528..00000000000000 --- a/drivers/sh/intc/Kconfig +++ /dev/null @@ -1,44 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -config SH_INTC - bool - select IRQ_DOMAIN - -if SH_INTC - -comment "Interrupt controller options" - -config INTC_USERIMASK - bool "Userspace interrupt masking support" - depends on (SUPERH && CPU_SH4A) || COMPILE_TEST - help - This enables support for hardware-assisted userspace hardirq - masking. - - SH-4A and newer interrupt blocks all support a special shadowed - page with all non-masking registers obscured when mapped in to - userspace. This is primarily for use by userspace device - drivers that are using special priority levels. - - If in doubt, say N. - -config INTC_BALANCING - bool "Hardware IRQ balancing support" - depends on SMP && SUPERH && CPU_SHX3 - help - This enables support for IRQ auto-distribution mode on SH-X3 - SMP parts. All of the balancing and CPU wakeup decisions are - taken care of automatically by hardware for distributed - vectors. - - If in doubt, say N. - -config INTC_MAPPING_DEBUG - bool "Expose IRQ to per-controller id mapping via debugfs" - depends on DEBUG_FS - help - This will create a debugfs entry for showing the relationship - between system IRQs and the per-controller id tables. - - If in doubt, say N. - -endif diff --git a/drivers/sh/intc/Makefile b/drivers/sh/intc/Makefile deleted file mode 100644 index bdd855327e41d5..00000000000000 --- a/drivers/sh/intc/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -obj-y := access.o chip.o core.o handle.o irqdomain.o virq.o - -obj-$(CONFIG_INTC_BALANCING) += balancing.o -obj-$(CONFIG_INTC_USERIMASK) += userimask.o -obj-$(CONFIG_INTC_MAPPING_DEBUG) += virq-debugfs.o diff --git a/drivers/sh/intc/access.c b/drivers/sh/intc/access.c deleted file mode 100644 index 114390f967d26e..00000000000000 --- a/drivers/sh/intc/access.c +++ /dev/null @@ -1,246 +0,0 @@ -/* - * Common INTC2 register accessors - * - * Copyright (C) 2007, 2008 Magnus Damm - * Copyright (C) 2009, 2010 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include "internals.h" - -unsigned long intc_phys_to_virt(struct intc_desc_int *d, unsigned long address) -{ - struct intc_window *window; - int k; - - /* scan through physical windows and convert address */ - for (k = 0; k < d->nr_windows; k++) { - window = d->window + k; - - if (address < window->phys) - continue; - - if (address >= (window->phys + window->size)) - continue; - - address -= window->phys; - address += (unsigned long)window->virt; - - return address; - } - - /* no windows defined, register must be 1:1 mapped virt:phys */ - return address; -} - -unsigned int intc_get_reg(struct intc_desc_int *d, unsigned long address) -{ - unsigned int k; - - address = intc_phys_to_virt(d, address); - - for (k = 0; k < d->nr_reg; k++) { - if (d->reg[k] == address) - return k; - } - - BUG(); - return 0; -} - -unsigned int intc_set_field_from_handle(unsigned int value, - unsigned int field_value, - unsigned int handle) -{ - unsigned int width = _INTC_WIDTH(handle); - unsigned int shift = _INTC_SHIFT(handle); - - value &= ~(((1 << width) - 1) << shift); - value |= field_value << shift; - return value; -} - -unsigned long intc_get_field_from_handle(unsigned int value, unsigned int handle) -{ - unsigned int width = _INTC_WIDTH(handle); - unsigned int shift = _INTC_SHIFT(handle); - unsigned int mask = ((1 << width) - 1) << shift; - - return (value & mask) >> shift; -} - -static unsigned long test_8(unsigned long addr, unsigned long h, - unsigned long ignore) -{ - void __iomem *ptr = (void __iomem *)addr; - return intc_get_field_from_handle(__raw_readb(ptr), h); -} - -static unsigned long test_16(unsigned long addr, unsigned long h, - unsigned long ignore) -{ - void __iomem *ptr = (void __iomem *)addr; - return intc_get_field_from_handle(__raw_readw(ptr), h); -} - -static unsigned long test_32(unsigned long addr, unsigned long h, - unsigned long ignore) -{ - void __iomem *ptr = (void __iomem *)addr; - return intc_get_field_from_handle(__raw_readl(ptr), h); -} - -static unsigned long write_8(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - __raw_writeb(intc_set_field_from_handle(0, data, h), ptr); - (void)__raw_readb(ptr); /* Defeat write posting */ - return 0; -} - -static unsigned long write_16(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - __raw_writew(intc_set_field_from_handle(0, data, h), ptr); - (void)__raw_readw(ptr); /* Defeat write posting */ - return 0; -} - -static unsigned long write_32(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - __raw_writel(intc_set_field_from_handle(0, data, h), ptr); - (void)__raw_readl(ptr); /* Defeat write posting */ - return 0; -} - -static unsigned long modify_8(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - unsigned long flags; - unsigned int value; - local_irq_save(flags); - value = intc_set_field_from_handle(__raw_readb(ptr), data, h); - __raw_writeb(value, ptr); - (void)__raw_readb(ptr); /* Defeat write posting */ - local_irq_restore(flags); - return 0; -} - -static unsigned long modify_16(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - unsigned long flags; - unsigned int value; - local_irq_save(flags); - value = intc_set_field_from_handle(__raw_readw(ptr), data, h); - __raw_writew(value, ptr); - (void)__raw_readw(ptr); /* Defeat write posting */ - local_irq_restore(flags); - return 0; -} - -static unsigned long modify_32(unsigned long addr, unsigned long h, - unsigned long data) -{ - void __iomem *ptr = (void __iomem *)addr; - unsigned long flags; - unsigned int value; - local_irq_save(flags); - value = intc_set_field_from_handle(__raw_readl(ptr), data, h); - __raw_writel(value, ptr); - (void)__raw_readl(ptr); /* Defeat write posting */ - local_irq_restore(flags); - return 0; -} - -static unsigned long intc_mode_field(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) -{ - return fn(addr, handle, ((1 << _INTC_WIDTH(handle)) - 1)); -} - -static unsigned long intc_mode_zero(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) -{ - return fn(addr, handle, 0); -} - -static unsigned long intc_mode_prio(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) -{ - return fn(addr, handle, intc_get_prio_level(irq)); -} - -unsigned long (*intc_reg_fns[])(unsigned long addr, - unsigned long h, - unsigned long data) = { - [REG_FN_TEST_BASE + 0] = test_8, - [REG_FN_TEST_BASE + 1] = test_16, - [REG_FN_TEST_BASE + 3] = test_32, - [REG_FN_WRITE_BASE + 0] = write_8, - [REG_FN_WRITE_BASE + 1] = write_16, - [REG_FN_WRITE_BASE + 3] = write_32, - [REG_FN_MODIFY_BASE + 0] = modify_8, - [REG_FN_MODIFY_BASE + 1] = modify_16, - [REG_FN_MODIFY_BASE + 3] = modify_32, -}; - -unsigned long (*intc_enable_fns[])(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) = { - [MODE_ENABLE_REG] = intc_mode_field, - [MODE_MASK_REG] = intc_mode_zero, - [MODE_DUAL_REG] = intc_mode_field, - [MODE_PRIO_REG] = intc_mode_prio, - [MODE_PCLR_REG] = intc_mode_prio, -}; - -unsigned long (*intc_disable_fns[])(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) = { - [MODE_ENABLE_REG] = intc_mode_zero, - [MODE_MASK_REG] = intc_mode_field, - [MODE_DUAL_REG] = intc_mode_field, - [MODE_PRIO_REG] = intc_mode_zero, - [MODE_PCLR_REG] = intc_mode_field, -}; - -unsigned long (*intc_enable_noprio_fns[])(unsigned long addr, - unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, - unsigned long), - unsigned int irq) = { - [MODE_ENABLE_REG] = intc_mode_field, - [MODE_MASK_REG] = intc_mode_zero, - [MODE_DUAL_REG] = intc_mode_field, - [MODE_PRIO_REG] = intc_mode_field, - [MODE_PCLR_REG] = intc_mode_field, -}; diff --git a/drivers/sh/intc/balancing.c b/drivers/sh/intc/balancing.c deleted file mode 100644 index bc780807ccb0fe..00000000000000 --- a/drivers/sh/intc/balancing.c +++ /dev/null @@ -1,97 +0,0 @@ -/* - * Support for hardware-managed IRQ auto-distribution. - * - * Copyright (C) 2010 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include "internals.h" - -static unsigned long dist_handle[INTC_NR_IRQS]; - -void intc_balancing_enable(unsigned int irq) -{ - struct intc_desc_int *d = get_intc_desc(irq); - unsigned long handle = dist_handle[irq]; - unsigned long addr; - - if (irq_balancing_disabled(irq) || !handle) - return; - - addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); - intc_reg_fns[_INTC_FN(handle)](addr, handle, 1); -} - -void intc_balancing_disable(unsigned int irq) -{ - struct intc_desc_int *d = get_intc_desc(irq); - unsigned long handle = dist_handle[irq]; - unsigned long addr; - - if (irq_balancing_disabled(irq) || !handle) - return; - - addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); - intc_reg_fns[_INTC_FN(handle)](addr, handle, 0); -} - -static unsigned int intc_dist_data(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id) -{ - struct intc_mask_reg *mr = desc->hw.mask_regs; - unsigned int i, j, fn, mode; - unsigned long reg_e, reg_d; - - for (i = 0; mr && enum_id && i < desc->hw.nr_mask_regs; i++) { - mr = desc->hw.mask_regs + i; - - /* - * Skip this entry if there's no auto-distribution - * register associated with it. - */ - if (!mr->dist_reg) - continue; - - for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) { - if (mr->enum_ids[j] != enum_id) - continue; - - fn = REG_FN_MODIFY_BASE; - mode = MODE_ENABLE_REG; - reg_e = mr->dist_reg; - reg_d = mr->dist_reg; - - fn += (mr->reg_width >> 3) - 1; - return _INTC_MK(fn, mode, - intc_get_reg(d, reg_e), - intc_get_reg(d, reg_d), - 1, - (mr->reg_width - 1) - j); - } - } - - /* - * It's possible we've gotten here with no distribution options - * available for the IRQ in question, so we just skip over those. - */ - return 0; -} - -void intc_set_dist_handle(unsigned int irq, struct intc_desc *desc, - struct intc_desc_int *d, intc_enum id) -{ - unsigned long flags; - - /* - * Nothing to do for this IRQ. - */ - if (!desc->hw.mask_regs) - return; - - raw_spin_lock_irqsave(&intc_big_lock, flags); - dist_handle[irq] = intc_dist_data(desc, d, id); - raw_spin_unlock_irqrestore(&intc_big_lock, flags); -} diff --git a/drivers/sh/intc/chip.c b/drivers/sh/intc/chip.c deleted file mode 100644 index 828d81e02b37ab..00000000000000 --- a/drivers/sh/intc/chip.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * IRQ chip definitions for INTC IRQs. - * - * Copyright (C) 2007, 2008 Magnus Damm - * Copyright (C) 2009 - 2012 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include "internals.h" - -void _intc_enable(struct irq_data *data, unsigned long handle) -{ - unsigned int irq = data->irq; - struct intc_desc_int *d = get_intc_desc(irq); - unsigned long addr; - unsigned int cpu; - - for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) { -#ifdef CONFIG_SMP - if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data))) - continue; -#endif - addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu); - intc_enable_fns[_INTC_MODE(handle)](addr, handle, intc_reg_fns\ - [_INTC_FN(handle)], irq); - } - - intc_balancing_enable(irq); -} - -static void intc_enable(struct irq_data *data) -{ - _intc_enable(data, (unsigned long)irq_data_get_irq_chip_data(data)); -} - -static void intc_disable(struct irq_data *data) -{ - unsigned int irq = data->irq; - struct intc_desc_int *d = get_intc_desc(irq); - unsigned long handle = (unsigned long)irq_data_get_irq_chip_data(data); - unsigned long addr; - unsigned int cpu; - - intc_balancing_disable(irq); - - for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) { -#ifdef CONFIG_SMP - if (!cpumask_test_cpu(cpu, irq_data_get_affinity_mask(data))) - continue; -#endif - addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu); - intc_disable_fns[_INTC_MODE(handle)](addr, handle,intc_reg_fns\ - [_INTC_FN(handle)], irq); - } -} - -#ifdef CONFIG_SMP -/* - * This is held with the irq desc lock held, so we don't require any - * additional locking here at the intc desc level. The affinity mask is - * later tested in the enable/disable paths. - */ -static int intc_set_affinity(struct irq_data *data, - const struct cpumask *cpumask, - bool force) -{ - if (!cpumask_intersects(cpumask, cpu_online_mask)) - return -1; - - irq_data_update_affinity(data, cpumask); - - return IRQ_SET_MASK_OK_NOCOPY; -} -#endif - -static void intc_mask_ack(struct irq_data *data) -{ - unsigned int irq = data->irq; - struct intc_desc_int *d = get_intc_desc(irq); - unsigned long handle = intc_get_ack_handle(irq); - void __iomem *addr; - - intc_disable(data); - - /* read register and write zero only to the associated bit */ - if (handle) { - unsigned int value; - - addr = (void __iomem *)INTC_REG(d, _INTC_ADDR_D(handle), 0); - value = intc_set_field_from_handle(0, 1, handle); - - switch (_INTC_FN(handle)) { - case REG_FN_MODIFY_BASE + 0: /* 8bit */ - __raw_readb(addr); - __raw_writeb(0xff ^ value, addr); - break; - case REG_FN_MODIFY_BASE + 1: /* 16bit */ - __raw_readw(addr); - __raw_writew(0xffff ^ value, addr); - break; - case REG_FN_MODIFY_BASE + 3: /* 32bit */ - __raw_readl(addr); - __raw_writel(0xffffffff ^ value, addr); - break; - default: - BUG(); - break; - } - } -} - -static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp, - unsigned int nr_hp, - unsigned int irq) -{ - struct intc_handle_int key; - - key.irq = irq; - key.handle = 0; - - return bsearch(&key, hp, nr_hp, sizeof(*hp), intc_handle_int_cmp); -} - -int intc_set_priority(unsigned int irq, unsigned int prio) -{ - struct intc_desc_int *d = get_intc_desc(irq); - struct irq_data *data = irq_get_irq_data(irq); - struct intc_handle_int *ihp; - - if (!intc_get_prio_level(irq) || prio <= 1) - return -EINVAL; - - ihp = intc_find_irq(d->prio, d->nr_prio, irq); - if (ihp) { - if (prio >= (1 << _INTC_WIDTH(ihp->handle))) - return -EINVAL; - - intc_set_prio_level(irq, prio); - - /* - * only set secondary masking method directly - * primary masking method is using intc_prio_level[irq] - * priority level will be set during next enable() - */ - if (_INTC_FN(ihp->handle) != REG_FN_ERR) - _intc_enable(data, ihp->handle); - } - return 0; -} - -#define SENSE_VALID_FLAG 0x80 -#define VALID(x) (x | SENSE_VALID_FLAG) - -static unsigned char intc_irq_sense_table[IRQ_TYPE_SENSE_MASK + 1] = { - [IRQ_TYPE_EDGE_FALLING] = VALID(0), - [IRQ_TYPE_EDGE_RISING] = VALID(1), - [IRQ_TYPE_LEVEL_LOW] = VALID(2), - /* SH7706, SH7707 and SH7709 do not support high level triggered */ -#if !defined(CONFIG_CPU_SUBTYPE_SH7706) && \ - !defined(CONFIG_CPU_SUBTYPE_SH7707) && \ - !defined(CONFIG_CPU_SUBTYPE_SH7709) - [IRQ_TYPE_LEVEL_HIGH] = VALID(3), -#endif -#if defined(CONFIG_ARM) /* all recent SH-Mobile / R-Mobile ARM support this */ - [IRQ_TYPE_EDGE_BOTH] = VALID(4), -#endif -}; - -static int intc_set_type(struct irq_data *data, unsigned int type) -{ - unsigned int irq = data->irq; - struct intc_desc_int *d = get_intc_desc(irq); - unsigned char value = intc_irq_sense_table[type & IRQ_TYPE_SENSE_MASK]; - struct intc_handle_int *ihp; - unsigned long addr; - - if (!value) - return -EINVAL; - - value &= ~SENSE_VALID_FLAG; - - ihp = intc_find_irq(d->sense, d->nr_sense, irq); - if (ihp) { - /* PINT has 2-bit sense registers, should fail on EDGE_BOTH */ - if (value >= (1 << _INTC_WIDTH(ihp->handle))) - return -EINVAL; - - addr = INTC_REG(d, _INTC_ADDR_E(ihp->handle), 0); - intc_reg_fns[_INTC_FN(ihp->handle)](addr, ihp->handle, value); - } - - return 0; -} - -struct irq_chip intc_irq_chip = { - .irq_mask = intc_disable, - .irq_unmask = intc_enable, - .irq_mask_ack = intc_mask_ack, - .irq_enable = intc_enable, - .irq_disable = intc_disable, - .irq_set_type = intc_set_type, -#ifdef CONFIG_SMP - .irq_set_affinity = intc_set_affinity, -#endif - .flags = IRQCHIP_SKIP_SET_WAKE, -}; diff --git a/drivers/sh/intc/core.c b/drivers/sh/intc/core.c deleted file mode 100644 index ca4f4ca413f11d..00000000000000 --- a/drivers/sh/intc/core.c +++ /dev/null @@ -1,501 +0,0 @@ -/* - * Shared interrupt handling code for IPR and INTC2 types of IRQs. - * - * Copyright (C) 2007, 2008 Magnus Damm - * Copyright (C) 2009 - 2012 Paul Mundt - * - * Based on intc2.c and ipr.c - * - * Copyright (C) 1999 Niibe Yutaka & Takeshi Yaegashi - * Copyright (C) 2000 Kazumoto Kojima - * Copyright (C) 2001 David J. Mckay (david.mckay@st.com) - * Copyright (C) 2003 Takashi Kusuda - * Copyright (C) 2005, 2006 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "intc: " fmt - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "internals.h" - -LIST_HEAD(intc_list); -DEFINE_RAW_SPINLOCK(intc_big_lock); -static unsigned int nr_intc_controllers; - -/* - * Default priority level - * - this needs to be at least 2 for 5-bit priorities on 7780 - */ -static unsigned int default_prio_level = 2; /* 2 - 16 */ -static unsigned int intc_prio_level[INTC_NR_IRQS]; /* for now */ - -unsigned int intc_get_dfl_prio_level(void) -{ - return default_prio_level; -} - -unsigned int intc_get_prio_level(unsigned int irq) -{ - return intc_prio_level[irq]; -} - -void intc_set_prio_level(unsigned int irq, unsigned int level) -{ - unsigned long flags; - - raw_spin_lock_irqsave(&intc_big_lock, flags); - intc_prio_level[irq] = level; - raw_spin_unlock_irqrestore(&intc_big_lock, flags); -} - -static void intc_redirect_irq(struct irq_desc *desc) -{ - generic_handle_irq((unsigned int)irq_desc_get_handler_data(desc)); -} - -static void __init intc_register_irq(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, - unsigned int irq) -{ - struct intc_handle_int *hp; - struct irq_data *irq_data; - unsigned int data[2], primary; - unsigned long flags; - - raw_spin_lock_irqsave(&intc_big_lock, flags); - radix_tree_insert(&d->tree, enum_id, intc_irq_xlate_get(irq)); - raw_spin_unlock_irqrestore(&intc_big_lock, flags); - - /* - * Prefer single interrupt source bitmap over other combinations: - * - * 1. bitmap, single interrupt source - * 2. priority, single interrupt source - * 3. bitmap, multiple interrupt sources (groups) - * 4. priority, multiple interrupt sources (groups) - */ - data[0] = intc_get_mask_handle(desc, d, enum_id, 0); - data[1] = intc_get_prio_handle(desc, d, enum_id, 0); - - primary = 0; - if (!data[0] && data[1]) - primary = 1; - - if (!data[0] && !data[1]) - pr_warn("missing unique irq mask for irq %d (vect 0x%04x)\n", - irq, irq2evt(irq)); - - data[0] = data[0] ? data[0] : intc_get_mask_handle(desc, d, enum_id, 1); - data[1] = data[1] ? data[1] : intc_get_prio_handle(desc, d, enum_id, 1); - - if (!data[primary]) - primary ^= 1; - - BUG_ON(!data[primary]); /* must have primary masking method */ - - irq_data = irq_get_irq_data(irq); - - disable_irq_nosync(irq); - irq_set_chip_and_handler_name(irq, &d->chip, handle_level_irq, - "level"); - irq_set_chip_data(irq, (void *)data[primary]); - - /* - * set priority level - */ - intc_set_prio_level(irq, intc_get_dfl_prio_level()); - - /* enable secondary masking method if present */ - if (data[!primary]) - _intc_enable(irq_data, data[!primary]); - - /* add irq to d->prio list if priority is available */ - if (data[1]) { - hp = d->prio + d->nr_prio; - hp->irq = irq; - hp->handle = data[1]; - - if (primary) { - /* - * only secondary priority should access registers, so - * set _INTC_FN(h) = REG_FN_ERR for intc_set_priority() - */ - hp->handle &= ~_INTC_MK(0x0f, 0, 0, 0, 0, 0); - hp->handle |= _INTC_MK(REG_FN_ERR, 0, 0, 0, 0, 0); - } - d->nr_prio++; - } - - /* add irq to d->sense list if sense is available */ - data[0] = intc_get_sense_handle(desc, d, enum_id); - if (data[0]) { - (d->sense + d->nr_sense)->irq = irq; - (d->sense + d->nr_sense)->handle = data[0]; - d->nr_sense++; - } - - /* irq should be disabled by default */ - d->chip.irq_mask(irq_data); - - intc_set_ack_handle(irq, desc, d, enum_id); - intc_set_dist_handle(irq, desc, d, enum_id); - - activate_irq(irq); -} - -static unsigned int __init save_reg(struct intc_desc_int *d, - unsigned int cnt, - unsigned long value, - unsigned int smp) -{ - if (value) { - value = intc_phys_to_virt(d, value); - - d->reg[cnt] = value; -#ifdef CONFIG_SMP - d->smp[cnt] = smp; -#endif - return 1; - } - - return 0; -} - -static bool __init intc_map(struct irq_domain *domain, int irq) -{ - if (!irq_to_desc(irq) && irq_alloc_desc_at(irq, NUMA_NO_NODE) != irq) { - pr_err("uname to allocate IRQ %d\n", irq); - return false; - } - - if (irq_domain_associate(domain, irq, irq)) { - pr_err("domain association failure\n"); - return false; - } - - return true; -} - -int __init register_intc_controller(struct intc_desc *desc) -{ - unsigned int i, k, smp; - struct intc_hw_desc *hw = &desc->hw; - struct intc_desc_int *d; - struct resource *res; - - pr_info("Registered controller '%s' with %u IRQs\n", - desc->name, hw->nr_vectors); - - d = kzalloc(sizeof(*d), GFP_NOWAIT); - if (!d) - goto err0; - - INIT_LIST_HEAD(&d->list); - list_add_tail(&d->list, &intc_list); - - raw_spin_lock_init(&d->lock); - INIT_RADIX_TREE(&d->tree, GFP_ATOMIC); - - d->index = nr_intc_controllers; - - if (desc->num_resources) { - d->nr_windows = desc->num_resources; - d->window = kcalloc(d->nr_windows, sizeof(*d->window), - GFP_NOWAIT); - if (!d->window) - goto err1; - - for (k = 0; k < d->nr_windows; k++) { - res = desc->resource + k; - WARN_ON(resource_type(res) != IORESOURCE_MEM); - d->window[k].phys = res->start; - d->window[k].size = resource_size(res); - d->window[k].virt = ioremap(res->start, - resource_size(res)); - if (!d->window[k].virt) - goto err2; - } - } - - d->nr_reg = hw->mask_regs ? hw->nr_mask_regs * 2 : 0; -#ifdef CONFIG_INTC_BALANCING - if (d->nr_reg) - d->nr_reg += hw->nr_mask_regs; -#endif - d->nr_reg += hw->prio_regs ? hw->nr_prio_regs * 2 : 0; - d->nr_reg += hw->sense_regs ? hw->nr_sense_regs : 0; - d->nr_reg += hw->ack_regs ? hw->nr_ack_regs : 0; - d->nr_reg += hw->subgroups ? hw->nr_subgroups : 0; - - d->reg = kcalloc(d->nr_reg, sizeof(*d->reg), GFP_NOWAIT); - if (!d->reg) - goto err2; - -#ifdef CONFIG_SMP - d->smp = kcalloc(d->nr_reg, sizeof(*d->smp), GFP_NOWAIT); - if (!d->smp) - goto err3; -#endif - k = 0; - - if (hw->mask_regs) { - for (i = 0; i < hw->nr_mask_regs; i++) { - smp = IS_SMP(hw->mask_regs[i]); - k += save_reg(d, k, hw->mask_regs[i].set_reg, smp); - k += save_reg(d, k, hw->mask_regs[i].clr_reg, smp); -#ifdef CONFIG_INTC_BALANCING - k += save_reg(d, k, hw->mask_regs[i].dist_reg, 0); -#endif - } - } - - if (hw->prio_regs) { - d->prio = kcalloc(hw->nr_vectors, sizeof(*d->prio), - GFP_NOWAIT); - if (!d->prio) - goto err4; - - for (i = 0; i < hw->nr_prio_regs; i++) { - smp = IS_SMP(hw->prio_regs[i]); - k += save_reg(d, k, hw->prio_regs[i].set_reg, smp); - k += save_reg(d, k, hw->prio_regs[i].clr_reg, smp); - } - - sort(d->prio, hw->nr_prio_regs, sizeof(*d->prio), - intc_handle_int_cmp, NULL); - } - - if (hw->sense_regs) { - d->sense = kcalloc(hw->nr_vectors, sizeof(*d->sense), - GFP_NOWAIT); - if (!d->sense) - goto err5; - - for (i = 0; i < hw->nr_sense_regs; i++) - k += save_reg(d, k, hw->sense_regs[i].reg, 0); - - sort(d->sense, hw->nr_sense_regs, sizeof(*d->sense), - intc_handle_int_cmp, NULL); - } - - if (hw->subgroups) - for (i = 0; i < hw->nr_subgroups; i++) - if (hw->subgroups[i].reg) - k+= save_reg(d, k, hw->subgroups[i].reg, 0); - - memcpy(&d->chip, &intc_irq_chip, sizeof(struct irq_chip)); - d->chip.name = desc->name; - - if (hw->ack_regs) - for (i = 0; i < hw->nr_ack_regs; i++) - k += save_reg(d, k, hw->ack_regs[i].set_reg, 0); - else - d->chip.irq_mask_ack = d->chip.irq_disable; - - /* disable bits matching force_disable before registering irqs */ - if (desc->force_disable) - intc_enable_disable_enum(desc, d, desc->force_disable, 0); - - /* disable bits matching force_enable before registering irqs */ - if (desc->force_enable) - intc_enable_disable_enum(desc, d, desc->force_enable, 0); - - BUG_ON(k > 256); /* _INTC_ADDR_E() and _INTC_ADDR_D() are 8 bits */ - - intc_irq_domain_init(d, hw); - - /* register the vectors one by one */ - for (i = 0; i < hw->nr_vectors; i++) { - struct intc_vect *vect = hw->vectors + i; - unsigned int irq = evt2irq(vect->vect); - - if (!vect->enum_id) - continue; - - if (!intc_map(d->domain, irq)) - continue; - - intc_irq_xlate_set(irq, vect->enum_id, d); - intc_register_irq(desc, d, vect->enum_id, irq); - - for (k = i + 1; k < hw->nr_vectors; k++) { - struct intc_vect *vect2 = hw->vectors + k; - unsigned int irq2 = evt2irq(vect2->vect); - - if (vect->enum_id != vect2->enum_id) - continue; - - /* - * In the case of multi-evt handling and sparse - * IRQ support, each vector still needs to have - * its own backing irq_desc. - */ - if (!intc_map(d->domain, irq2)) - continue; - - vect2->enum_id = 0; - - /* redirect this interrupts to the first one */ - irq_set_chip(irq2, &dummy_irq_chip); - irq_set_chained_handler_and_data(irq2, - intc_redirect_irq, - (void *)irq); - } - } - - intc_subgroup_init(desc, d); - - /* enable bits matching force_enable after registering irqs */ - if (desc->force_enable) - intc_enable_disable_enum(desc, d, desc->force_enable, 1); - - d->skip_suspend = desc->skip_syscore_suspend; - - nr_intc_controllers++; - - return 0; -err5: - kfree(d->prio); -err4: -#ifdef CONFIG_SMP - kfree(d->smp); -err3: -#endif - kfree(d->reg); -err2: - for (k = 0; k < d->nr_windows; k++) - if (d->window[k].virt) - iounmap(d->window[k].virt); - - kfree(d->window); -err1: - kfree(d); -err0: - pr_err("unable to allocate INTC memory\n"); - - return -ENOMEM; -} - -static int intc_suspend(void) -{ - struct intc_desc_int *d; - - list_for_each_entry(d, &intc_list, list) { - int irq; - - if (d->skip_suspend) - continue; - - /* enable wakeup irqs belonging to this intc controller */ - for_each_active_irq(irq) { - struct irq_data *data; - struct irq_chip *chip; - - data = irq_get_irq_data(irq); - chip = irq_data_get_irq_chip(data); - if (chip != &d->chip) - continue; - if (irqd_is_wakeup_set(data)) - chip->irq_enable(data); - } - } - return 0; -} - -static void intc_resume(void) -{ - struct intc_desc_int *d; - - list_for_each_entry(d, &intc_list, list) { - int irq; - - if (d->skip_suspend) - continue; - - for_each_active_irq(irq) { - struct irq_data *data; - struct irq_chip *chip; - - data = irq_get_irq_data(irq); - chip = irq_data_get_irq_chip(data); - /* - * This will catch the redirect and VIRQ cases - * due to the dummy_irq_chip being inserted. - */ - if (chip != &d->chip) - continue; - if (irqd_irq_disabled(data)) - chip->irq_disable(data); - else - chip->irq_enable(data); - } - } -} - -struct syscore_ops intc_syscore_ops = { - .suspend = intc_suspend, - .resume = intc_resume, -}; - -struct bus_type intc_subsys = { - .name = "intc", - .dev_name = "intc", -}; - -static ssize_t -show_intc_name(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct intc_desc_int *d; - - d = container_of(dev, struct intc_desc_int, dev); - - return sprintf(buf, "%s\n", d->chip.name); -} - -static DEVICE_ATTR(name, S_IRUGO, show_intc_name, NULL); - -static int __init register_intc_devs(void) -{ - struct intc_desc_int *d; - int error; - - register_syscore_ops(&intc_syscore_ops); - - error = subsys_system_register(&intc_subsys, NULL); - if (!error) { - list_for_each_entry(d, &intc_list, list) { - d->dev.id = d->index; - d->dev.bus = &intc_subsys; - error = device_register(&d->dev); - if (error == 0) - error = device_create_file(&d->dev, - &dev_attr_name); - if (error) - break; - } - } - - if (error) - pr_err("device registration error\n"); - - return error; -} -device_initcall(register_intc_devs); diff --git a/drivers/sh/intc/handle.c b/drivers/sh/intc/handle.c deleted file mode 100644 index 7863a44918a293..00000000000000 --- a/drivers/sh/intc/handle.c +++ /dev/null @@ -1,306 +0,0 @@ -/* - * Shared interrupt handling code for IPR and INTC2 types of IRQs. - * - * Copyright (C) 2007, 2008 Magnus Damm - * Copyright (C) 2009, 2010 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include "internals.h" - -static unsigned long ack_handle[INTC_NR_IRQS]; - -static intc_enum __init intc_grp_id(struct intc_desc *desc, - intc_enum enum_id) -{ - struct intc_group *g = desc->hw.groups; - unsigned int i, j; - - for (i = 0; g && enum_id && i < desc->hw.nr_groups; i++) { - g = desc->hw.groups + i; - - for (j = 0; g->enum_ids[j]; j++) { - if (g->enum_ids[j] != enum_id) - continue; - - return g->enum_id; - } - } - - return 0; -} - -static unsigned int __init _intc_mask_data(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, - unsigned int *reg_idx, - unsigned int *fld_idx) -{ - struct intc_mask_reg *mr = desc->hw.mask_regs; - unsigned int fn, mode; - unsigned long reg_e, reg_d; - - while (mr && enum_id && *reg_idx < desc->hw.nr_mask_regs) { - mr = desc->hw.mask_regs + *reg_idx; - - for (; *fld_idx < ARRAY_SIZE(mr->enum_ids); (*fld_idx)++) { - if (mr->enum_ids[*fld_idx] != enum_id) - continue; - - if (mr->set_reg && mr->clr_reg) { - fn = REG_FN_WRITE_BASE; - mode = MODE_DUAL_REG; - reg_e = mr->clr_reg; - reg_d = mr->set_reg; - } else { - fn = REG_FN_MODIFY_BASE; - if (mr->set_reg) { - mode = MODE_ENABLE_REG; - reg_e = mr->set_reg; - reg_d = mr->set_reg; - } else { - mode = MODE_MASK_REG; - reg_e = mr->clr_reg; - reg_d = mr->clr_reg; - } - } - - fn += (mr->reg_width >> 3) - 1; - return _INTC_MK(fn, mode, - intc_get_reg(d, reg_e), - intc_get_reg(d, reg_d), - 1, - (mr->reg_width - 1) - *fld_idx); - } - - *fld_idx = 0; - (*reg_idx)++; - } - - return 0; -} - -unsigned int __init -intc_get_mask_handle(struct intc_desc *desc, struct intc_desc_int *d, - intc_enum enum_id, int do_grps) -{ - unsigned int i = 0; - unsigned int j = 0; - unsigned int ret; - - ret = _intc_mask_data(desc, d, enum_id, &i, &j); - if (ret) - return ret; - - if (do_grps) - return intc_get_mask_handle(desc, d, intc_grp_id(desc, enum_id), 0); - - return 0; -} - -static unsigned int __init _intc_prio_data(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, - unsigned int *reg_idx, - unsigned int *fld_idx) -{ - struct intc_prio_reg *pr = desc->hw.prio_regs; - unsigned int fn, n, mode, bit; - unsigned long reg_e, reg_d; - - while (pr && enum_id && *reg_idx < desc->hw.nr_prio_regs) { - pr = desc->hw.prio_regs + *reg_idx; - - for (; *fld_idx < ARRAY_SIZE(pr->enum_ids); (*fld_idx)++) { - if (pr->enum_ids[*fld_idx] != enum_id) - continue; - - if (pr->set_reg && pr->clr_reg) { - fn = REG_FN_WRITE_BASE; - mode = MODE_PCLR_REG; - reg_e = pr->set_reg; - reg_d = pr->clr_reg; - } else { - fn = REG_FN_MODIFY_BASE; - mode = MODE_PRIO_REG; - if (!pr->set_reg) - BUG(); - reg_e = pr->set_reg; - reg_d = pr->set_reg; - } - - fn += (pr->reg_width >> 3) - 1; - n = *fld_idx + 1; - - BUG_ON(n * pr->field_width > pr->reg_width); - - bit = pr->reg_width - (n * pr->field_width); - - return _INTC_MK(fn, mode, - intc_get_reg(d, reg_e), - intc_get_reg(d, reg_d), - pr->field_width, bit); - } - - *fld_idx = 0; - (*reg_idx)++; - } - - return 0; -} - -unsigned int __init -intc_get_prio_handle(struct intc_desc *desc, struct intc_desc_int *d, - intc_enum enum_id, int do_grps) -{ - unsigned int i = 0; - unsigned int j = 0; - unsigned int ret; - - ret = _intc_prio_data(desc, d, enum_id, &i, &j); - if (ret) - return ret; - - if (do_grps) - return intc_get_prio_handle(desc, d, intc_grp_id(desc, enum_id), 0); - - return 0; -} - -static unsigned int intc_ack_data(struct intc_desc *desc, - struct intc_desc_int *d, intc_enum enum_id) -{ - struct intc_mask_reg *mr = desc->hw.ack_regs; - unsigned int i, j, fn, mode; - unsigned long reg_e, reg_d; - - for (i = 0; mr && enum_id && i < desc->hw.nr_ack_regs; i++) { - mr = desc->hw.ack_regs + i; - - for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) { - if (mr->enum_ids[j] != enum_id) - continue; - - fn = REG_FN_MODIFY_BASE; - mode = MODE_ENABLE_REG; - reg_e = mr->set_reg; - reg_d = mr->set_reg; - - fn += (mr->reg_width >> 3) - 1; - return _INTC_MK(fn, mode, - intc_get_reg(d, reg_e), - intc_get_reg(d, reg_d), - 1, - (mr->reg_width - 1) - j); - } - } - - return 0; -} - -static void intc_enable_disable(struct intc_desc_int *d, - unsigned long handle, int do_enable) -{ - unsigned long addr; - unsigned int cpu; - unsigned long (*fn)(unsigned long, unsigned long, - unsigned long (*)(unsigned long, unsigned long, - unsigned long), - unsigned int); - - if (do_enable) { - for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_E(handle)); cpu++) { - addr = INTC_REG(d, _INTC_ADDR_E(handle), cpu); - fn = intc_enable_noprio_fns[_INTC_MODE(handle)]; - fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0); - } - } else { - for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) { - addr = INTC_REG(d, _INTC_ADDR_D(handle), cpu); - fn = intc_disable_fns[_INTC_MODE(handle)]; - fn(addr, handle, intc_reg_fns[_INTC_FN(handle)], 0); - } - } -} - -void __init intc_enable_disable_enum(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, int enable) -{ - unsigned int i, j, data; - - /* go through and enable/disable all mask bits */ - i = j = 0; - do { - data = _intc_mask_data(desc, d, enum_id, &i, &j); - if (data) - intc_enable_disable(d, data, enable); - j++; - } while (data); - - /* go through and enable/disable all priority fields */ - i = j = 0; - do { - data = _intc_prio_data(desc, d, enum_id, &i, &j); - if (data) - intc_enable_disable(d, data, enable); - - j++; - } while (data); -} - -unsigned int __init -intc_get_sense_handle(struct intc_desc *desc, struct intc_desc_int *d, - intc_enum enum_id) -{ - struct intc_sense_reg *sr = desc->hw.sense_regs; - unsigned int i, j, fn, bit; - - for (i = 0; sr && enum_id && i < desc->hw.nr_sense_regs; i++) { - sr = desc->hw.sense_regs + i; - - for (j = 0; j < ARRAY_SIZE(sr->enum_ids); j++) { - if (sr->enum_ids[j] != enum_id) - continue; - - fn = REG_FN_MODIFY_BASE; - fn += (sr->reg_width >> 3) - 1; - - BUG_ON((j + 1) * sr->field_width > sr->reg_width); - - bit = sr->reg_width - ((j + 1) * sr->field_width); - - return _INTC_MK(fn, 0, intc_get_reg(d, sr->reg), - 0, sr->field_width, bit); - } - } - - return 0; -} - - -void intc_set_ack_handle(unsigned int irq, struct intc_desc *desc, - struct intc_desc_int *d, intc_enum id) -{ - unsigned long flags; - - /* - * Nothing to do for this IRQ. - */ - if (!desc->hw.ack_regs) - return; - - raw_spin_lock_irqsave(&intc_big_lock, flags); - ack_handle[irq] = intc_ack_data(desc, d, id); - raw_spin_unlock_irqrestore(&intc_big_lock, flags); -} - -unsigned long intc_get_ack_handle(unsigned int irq) -{ - return ack_handle[irq]; -} diff --git a/drivers/sh/intc/internals.h b/drivers/sh/intc/internals.h deleted file mode 100644 index fa73c173b56a60..00000000000000 --- a/drivers/sh/intc/internals.h +++ /dev/null @@ -1,191 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#include -#include -#include -#include -#include -#include -#include -#include - -#define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \ - ((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \ - ((addr_e) << 16) | ((addr_d << 24))) - -#define _INTC_SHIFT(h) (h & 0x1f) -#define _INTC_WIDTH(h) ((h >> 5) & 0xf) -#define _INTC_FN(h) ((h >> 9) & 0xf) -#define _INTC_MODE(h) ((h >> 13) & 0x7) -#define _INTC_ADDR_E(h) ((h >> 16) & 0xff) -#define _INTC_ADDR_D(h) ((h >> 24) & 0xff) - -#ifdef CONFIG_SMP -#define IS_SMP(x) (x.smp) -#define INTC_REG(d, x, c) (d->reg[(x)] + ((d->smp[(x)] & 0xff) * c)) -#define SMP_NR(d, x) ((d->smp[(x)] >> 8) ? (d->smp[(x)] >> 8) : 1) -#else -#define IS_SMP(x) 0 -#define INTC_REG(d, x, c) (d->reg[(x)]) -#define SMP_NR(d, x) 1 -#endif - -struct intc_handle_int { - unsigned int irq; - unsigned long handle; -}; - -struct intc_window { - phys_addr_t phys; - void __iomem *virt; - unsigned long size; -}; - -struct intc_map_entry { - intc_enum enum_id; - struct intc_desc_int *desc; -}; - -struct intc_subgroup_entry { - unsigned int pirq; - intc_enum enum_id; - unsigned long handle; -}; - -struct intc_desc_int { - struct list_head list; - struct device dev; - struct radix_tree_root tree; - raw_spinlock_t lock; - unsigned int index; - unsigned long *reg; -#ifdef CONFIG_SMP - unsigned long *smp; -#endif - unsigned int nr_reg; - struct intc_handle_int *prio; - unsigned int nr_prio; - struct intc_handle_int *sense; - unsigned int nr_sense; - struct intc_window *window; - unsigned int nr_windows; - struct irq_domain *domain; - struct irq_chip chip; - bool skip_suspend; -}; - - -enum { - REG_FN_ERR = 0, - REG_FN_TEST_BASE = 1, - REG_FN_WRITE_BASE = 5, - REG_FN_MODIFY_BASE = 9 -}; - -enum { MODE_ENABLE_REG = 0, /* Bit(s) set -> interrupt enabled */ - MODE_MASK_REG, /* Bit(s) set -> interrupt disabled */ - MODE_DUAL_REG, /* Two registers, set bit to enable / disable */ - MODE_PRIO_REG, /* Priority value written to enable interrupt */ - MODE_PCLR_REG, /* Above plus all bits set to disable interrupt */ -}; - -static inline struct intc_desc_int *get_intc_desc(unsigned int irq) -{ - struct irq_chip *chip = irq_get_chip(irq); - - return container_of(chip, struct intc_desc_int, chip); -} - -/* - * Grumble. - */ -static inline void activate_irq(int irq) -{ - irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE); -} - -static inline int intc_handle_int_cmp(const void *a, const void *b) -{ - const struct intc_handle_int *_a = a; - const struct intc_handle_int *_b = b; - - return _a->irq - _b->irq; -} - -/* access.c */ -extern unsigned long -(*intc_reg_fns[])(unsigned long addr, unsigned long h, unsigned long data); - -extern unsigned long -(*intc_enable_fns[])(unsigned long addr, unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, unsigned long), - unsigned int irq); -extern unsigned long -(*intc_disable_fns[])(unsigned long addr, unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, unsigned long), - unsigned int irq); -extern unsigned long -(*intc_enable_noprio_fns[])(unsigned long addr, unsigned long handle, - unsigned long (*fn)(unsigned long, - unsigned long, unsigned long), - unsigned int irq); - -unsigned long intc_phys_to_virt(struct intc_desc_int *d, unsigned long address); -unsigned int intc_get_reg(struct intc_desc_int *d, unsigned long address); -unsigned int intc_set_field_from_handle(unsigned int value, - unsigned int field_value, - unsigned int handle); -unsigned long intc_get_field_from_handle(unsigned int value, - unsigned int handle); - -/* balancing.c */ -#ifdef CONFIG_INTC_BALANCING -void intc_balancing_enable(unsigned int irq); -void intc_balancing_disable(unsigned int irq); -void intc_set_dist_handle(unsigned int irq, struct intc_desc *desc, - struct intc_desc_int *d, intc_enum id); -#else -static inline void intc_balancing_enable(unsigned int irq) { } -static inline void intc_balancing_disable(unsigned int irq) { } -static inline void -intc_set_dist_handle(unsigned int irq, struct intc_desc *desc, - struct intc_desc_int *d, intc_enum id) { } -#endif - -/* chip.c */ -extern struct irq_chip intc_irq_chip; -void _intc_enable(struct irq_data *data, unsigned long handle); - -/* core.c */ -extern struct list_head intc_list; -extern raw_spinlock_t intc_big_lock; -extern struct bus_type intc_subsys; - -unsigned int intc_get_dfl_prio_level(void); -unsigned int intc_get_prio_level(unsigned int irq); -void intc_set_prio_level(unsigned int irq, unsigned int level); - -/* handle.c */ -unsigned int intc_get_mask_handle(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, int do_grps); -unsigned int intc_get_prio_handle(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id, int do_grps); -unsigned int intc_get_sense_handle(struct intc_desc *desc, - struct intc_desc_int *d, - intc_enum enum_id); -void intc_set_ack_handle(unsigned int irq, struct intc_desc *desc, - struct intc_desc_int *d, intc_enum id); -unsigned long intc_get_ack_handle(unsigned int irq); -void intc_enable_disable_enum(struct intc_desc *desc, struct intc_desc_int *d, - intc_enum enum_id, int enable); - -/* irqdomain.c */ -void intc_irq_domain_init(struct intc_desc_int *d, struct intc_hw_desc *hw); - -/* virq.c */ -void intc_subgroup_init(struct intc_desc *desc, struct intc_desc_int *d); -void intc_irq_xlate_set(unsigned int irq, intc_enum id, struct intc_desc_int *d); -struct intc_map_entry *intc_irq_xlate_get(unsigned int irq); diff --git a/drivers/sh/intc/irqdomain.c b/drivers/sh/intc/irqdomain.c deleted file mode 100644 index 3968f1c3c5c308..00000000000000 --- a/drivers/sh/intc/irqdomain.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * IRQ domain support for SH INTC subsystem - * - * Copyright (C) 2012 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "intc: " fmt - -#include -#include -#include -#include "internals.h" - -/** - * intc_irq_domain_evt_xlate() - Generic xlate for vectored IRQs. - * - * This takes care of exception vector to hwirq translation through - * by way of evt2irq() translation. - * - * Note: For platforms that use a flat vector space without INTEVT this - * basically just mimics irq_domain_xlate_onecell() by way of a nopped - * out evt2irq() implementation. - */ -static int intc_evt_xlate(struct irq_domain *d, struct device_node *ctrlr, - const u32 *intspec, unsigned int intsize, - unsigned long *out_hwirq, unsigned int *out_type) -{ - if (WARN_ON(intsize < 1)) - return -EINVAL; - - *out_hwirq = evt2irq(intspec[0]); - *out_type = IRQ_TYPE_NONE; - - return 0; -} - -static const struct irq_domain_ops intc_evt_ops = { - .xlate = intc_evt_xlate, -}; - -void __init intc_irq_domain_init(struct intc_desc_int *d, - struct intc_hw_desc *hw) -{ - unsigned int irq_base, irq_end; - - /* - * Quick linear revmap check - */ - irq_base = evt2irq(hw->vectors[0].vect); - irq_end = evt2irq(hw->vectors[hw->nr_vectors - 1].vect); - - /* - * Linear domains have a hard-wired assertion that IRQs start at - * 0 in order to make some performance optimizations. Lamely - * restrict the linear case to these conditions here, taking the - * tree penalty for linear cases with non-zero hwirq bases. - */ - if (irq_base == 0 && irq_end == (irq_base + hw->nr_vectors - 1)) - d->domain = irq_domain_add_linear(NULL, hw->nr_vectors, - &intc_evt_ops, NULL); - else - d->domain = irq_domain_add_tree(NULL, &intc_evt_ops, NULL); - - BUG_ON(!d->domain); -} diff --git a/drivers/sh/intc/userimask.c b/drivers/sh/intc/userimask.c deleted file mode 100644 index f9f043a3d90a23..00000000000000 --- a/drivers/sh/intc/userimask.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Support for hardware-assisted userspace interrupt masking. - * - * Copyright (C) 2010 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "intc: " fmt - -#include -#include -#include -#include -#include -#include -#include "internals.h" - -static void __iomem *uimask; - -static ssize_t -show_intc_userimask(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "%d\n", (__raw_readl(uimask) >> 4) & 0xf); -} - -static ssize_t -store_intc_userimask(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - unsigned long level; - - level = simple_strtoul(buf, NULL, 10); - - /* - * Minimal acceptable IRQ levels are in the 2 - 16 range, but - * these are chomped so as to not interfere with normal IRQs. - * - * Level 1 is a special case on some CPUs in that it's not - * directly settable, but given that USERIMASK cuts off below a - * certain level, we don't care about this limitation here. - * Level 0 on the other hand equates to user masking disabled. - * - * We use the default priority level as a cut off so that only - * special case opt-in IRQs can be mangled. - */ - if (level >= intc_get_dfl_prio_level()) - return -EINVAL; - - __raw_writel(0xa5 << 24 | level << 4, uimask); - - return count; -} - -static DEVICE_ATTR(userimask, S_IRUSR | S_IWUSR, - show_intc_userimask, store_intc_userimask); - - -static int __init userimask_sysdev_init(void) -{ - if (unlikely(!uimask)) - return -ENXIO; - - return device_create_file(intc_subsys.dev_root, &dev_attr_userimask); -} -late_initcall(userimask_sysdev_init); - -int register_intc_userimask(unsigned long addr) -{ - if (unlikely(uimask)) - return -EBUSY; - - uimask = ioremap(addr, SZ_4K); - if (unlikely(!uimask)) - return -ENOMEM; - - pr_info("userimask support registered for levels 0 -> %d\n", - intc_get_dfl_prio_level() - 1); - - return 0; -} diff --git a/drivers/sh/intc/virq-debugfs.c b/drivers/sh/intc/virq-debugfs.c deleted file mode 100644 index 939915a07d9997..00000000000000 --- a/drivers/sh/intc/virq-debugfs.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Support for virtual IRQ subgroups debugfs mapping. - * - * Copyright (C) 2010 Paul Mundt - * - * Modelled after arch/powerpc/kernel/irq.c. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include -#include -#include "internals.h" - -static int intc_irq_xlate_show(struct seq_file *m, void *priv) -{ - int i; - - seq_printf(m, "%-5s %-7s %-15s\n", "irq", "enum", "chip name"); - - for (i = 1; i < nr_irqs; i++) { - struct intc_map_entry *entry = intc_irq_xlate_get(i); - struct intc_desc_int *desc = entry->desc; - - if (!desc) - continue; - - seq_printf(m, "%5d ", i); - seq_printf(m, "0x%05x ", entry->enum_id); - seq_printf(m, "%-15s\n", desc->chip.name); - } - - return 0; -} - -DEFINE_SHOW_ATTRIBUTE(intc_irq_xlate); - -static int __init intc_irq_xlate_init(void) -{ - /* - * XXX.. use arch_debugfs_dir here when all of the intc users are - * converted. - */ - if (debugfs_create_file("intc_irq_xlate", S_IRUGO, NULL, NULL, - &intc_irq_xlate_fops) == NULL) - return -ENOMEM; - - return 0; -} -fs_initcall(intc_irq_xlate_init); diff --git a/drivers/sh/intc/virq.c b/drivers/sh/intc/virq.c deleted file mode 100644 index a638c3048207c0..00000000000000 --- a/drivers/sh/intc/virq.c +++ /dev/null @@ -1,269 +0,0 @@ -/* - * Support for virtual IRQ subgroups. - * - * Copyright (C) 2010 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#define pr_fmt(fmt) "intc: " fmt - -#include -#include -#include -#include -#include -#include -#include "internals.h" - -static struct intc_map_entry intc_irq_xlate[INTC_NR_IRQS]; - -struct intc_virq_list { - unsigned int irq; - struct intc_virq_list *next; -}; - -#define for_each_virq(entry, head) \ - for (entry = head; entry; entry = entry->next) - -/* - * Tags for the radix tree - */ -#define INTC_TAG_VIRQ_NEEDS_ALLOC 0 - -void intc_irq_xlate_set(unsigned int irq, intc_enum id, struct intc_desc_int *d) -{ - unsigned long flags; - - raw_spin_lock_irqsave(&intc_big_lock, flags); - intc_irq_xlate[irq].enum_id = id; - intc_irq_xlate[irq].desc = d; - raw_spin_unlock_irqrestore(&intc_big_lock, flags); -} - -struct intc_map_entry *intc_irq_xlate_get(unsigned int irq) -{ - return intc_irq_xlate + irq; -} - -int intc_irq_lookup(const char *chipname, intc_enum enum_id) -{ - struct intc_map_entry *ptr; - struct intc_desc_int *d; - int irq = -1; - - list_for_each_entry(d, &intc_list, list) { - int tagged; - - if (strcmp(d->chip.name, chipname) != 0) - continue; - - /* - * Catch early lookups for subgroup VIRQs that have not - * yet been allocated an IRQ. This already includes a - * fast-path out if the tree is untagged, so there is no - * need to explicitly test the root tree. - */ - tagged = radix_tree_tag_get(&d->tree, enum_id, - INTC_TAG_VIRQ_NEEDS_ALLOC); - if (unlikely(tagged)) - break; - - ptr = radix_tree_lookup(&d->tree, enum_id); - if (ptr) { - irq = ptr - intc_irq_xlate; - break; - } - } - - return irq; -} -EXPORT_SYMBOL_GPL(intc_irq_lookup); - -static int add_virq_to_pirq(unsigned int irq, unsigned int virq) -{ - struct intc_virq_list *entry; - struct intc_virq_list **last = NULL; - - /* scan for duplicates */ - for_each_virq(entry, irq_get_handler_data(irq)) { - if (entry->irq == virq) - return 0; - last = &entry->next; - } - - entry = kzalloc(sizeof(struct intc_virq_list), GFP_ATOMIC); - if (!entry) - return -ENOMEM; - - entry->irq = virq; - - if (last) - *last = entry; - else - irq_set_handler_data(irq, entry); - - return 0; -} - -static void intc_virq_handler(struct irq_desc *desc) -{ - unsigned int irq = irq_desc_get_irq(desc); - struct irq_data *data = irq_desc_get_irq_data(desc); - struct irq_chip *chip = irq_data_get_irq_chip(data); - struct intc_virq_list *entry, *vlist = irq_data_get_irq_handler_data(data); - struct intc_desc_int *d = get_intc_desc(irq); - - chip->irq_mask_ack(data); - - for_each_virq(entry, vlist) { - unsigned long addr, handle; - struct irq_desc *vdesc = irq_to_desc(entry->irq); - - if (vdesc) { - handle = (unsigned long)irq_desc_get_handler_data(vdesc); - addr = INTC_REG(d, _INTC_ADDR_E(handle), 0); - if (intc_reg_fns[_INTC_FN(handle)](addr, handle, 0)) - generic_handle_irq_desc(vdesc); - } - } - - chip->irq_unmask(data); -} - -static unsigned long __init intc_subgroup_data(struct intc_subgroup *subgroup, - struct intc_desc_int *d, - unsigned int index) -{ - unsigned int fn = REG_FN_TEST_BASE + (subgroup->reg_width >> 3) - 1; - - return _INTC_MK(fn, MODE_ENABLE_REG, intc_get_reg(d, subgroup->reg), - 0, 1, (subgroup->reg_width - 1) - index); -} - -static void __init intc_subgroup_init_one(struct intc_desc *desc, - struct intc_desc_int *d, - struct intc_subgroup *subgroup) -{ - struct intc_map_entry *mapped; - unsigned int pirq; - unsigned long flags; - int i; - - mapped = radix_tree_lookup(&d->tree, subgroup->parent_id); - if (!mapped) { - WARN_ON(1); - return; - } - - pirq = mapped - intc_irq_xlate; - - raw_spin_lock_irqsave(&d->lock, flags); - - for (i = 0; i < ARRAY_SIZE(subgroup->enum_ids); i++) { - struct intc_subgroup_entry *entry; - int err; - - if (!subgroup->enum_ids[i]) - continue; - - entry = kmalloc(sizeof(*entry), GFP_NOWAIT); - if (!entry) - break; - - entry->pirq = pirq; - entry->enum_id = subgroup->enum_ids[i]; - entry->handle = intc_subgroup_data(subgroup, d, i); - - err = radix_tree_insert(&d->tree, entry->enum_id, entry); - if (unlikely(err < 0)) - break; - - radix_tree_tag_set(&d->tree, entry->enum_id, - INTC_TAG_VIRQ_NEEDS_ALLOC); - } - - raw_spin_unlock_irqrestore(&d->lock, flags); -} - -void __init intc_subgroup_init(struct intc_desc *desc, struct intc_desc_int *d) -{ - int i; - - if (!desc->hw.subgroups) - return; - - for (i = 0; i < desc->hw.nr_subgroups; i++) - intc_subgroup_init_one(desc, d, desc->hw.subgroups + i); -} - -static void __init intc_subgroup_map(struct intc_desc_int *d) -{ - struct intc_subgroup_entry *entries[32]; - unsigned long flags; - unsigned int nr_found; - int i; - - raw_spin_lock_irqsave(&d->lock, flags); - -restart: - nr_found = radix_tree_gang_lookup_tag_slot(&d->tree, - (void ***)entries, 0, ARRAY_SIZE(entries), - INTC_TAG_VIRQ_NEEDS_ALLOC); - - for (i = 0; i < nr_found; i++) { - struct intc_subgroup_entry *entry; - int irq; - - entry = radix_tree_deref_slot((void **)entries[i]); - if (unlikely(!entry)) - continue; - if (radix_tree_deref_retry(entry)) - goto restart; - - irq = irq_alloc_desc(numa_node_id()); - if (unlikely(irq < 0)) { - pr_err("no more free IRQs, bailing..\n"); - break; - } - - activate_irq(irq); - - pr_info("Setting up a chained VIRQ from %d -> %d\n", - irq, entry->pirq); - - intc_irq_xlate_set(irq, entry->enum_id, d); - - irq_set_chip_and_handler_name(irq, irq_get_chip(entry->pirq), - handle_simple_irq, "virq"); - irq_set_chip_data(irq, irq_get_chip_data(entry->pirq)); - - irq_set_handler_data(irq, (void *)entry->handle); - - /* - * Set the virtual IRQ as non-threadable. - */ - irq_set_nothread(irq); - - /* Set handler data before installing the handler */ - add_virq_to_pirq(entry->pirq, irq); - irq_set_chained_handler(entry->pirq, intc_virq_handler); - - radix_tree_tag_clear(&d->tree, entry->enum_id, - INTC_TAG_VIRQ_NEEDS_ALLOC); - radix_tree_replace_slot(&d->tree, (void **)entries[i], - &intc_irq_xlate[irq]); - } - - raw_spin_unlock_irqrestore(&d->lock, flags); -} - -void __init intc_finalize(void) -{ - struct intc_desc_int *d; - - list_for_each_entry(d, &intc_list, list) - if (radix_tree_tagged(&d->tree, INTC_TAG_VIRQ_NEEDS_ALLOC)) - intc_subgroup_map(d); -} diff --git a/drivers/sh/maple/Makefile b/drivers/sh/maple/Makefile deleted file mode 100644 index c3a80910c212ce..00000000000000 --- a/drivers/sh/maple/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# Makefile for Maple Bus - -obj-$(CONFIG_MAPLE) := maple.o diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c deleted file mode 100644 index e24e220e56eea1..00000000000000 --- a/drivers/sh/maple/maple.c +++ /dev/null @@ -1,895 +0,0 @@ -/* - * Core maple bus functionality - * - * Copyright (C) 2007 - 2009 Adrian McMenamin - * Copyright (C) 2001 - 2008 Paul Mundt - * Copyright (C) 2000 - 2001 YAEGASHI Takeshi - * Copyright (C) 2001 M. R. Brown - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -MODULE_AUTHOR("Adrian McMenamin "); -MODULE_DESCRIPTION("Maple bus driver for Dreamcast"); -MODULE_LICENSE("GPL v2"); - -static void maple_dma_handler(struct work_struct *work); -static void maple_vblank_handler(struct work_struct *work); - -static DECLARE_WORK(maple_dma_process, maple_dma_handler); -static DECLARE_WORK(maple_vblank_process, maple_vblank_handler); - -static LIST_HEAD(maple_waitq); -static LIST_HEAD(maple_sentq); - -/* mutex to protect queue of waiting packets */ -static DEFINE_MUTEX(maple_wlist_lock); - -static struct maple_driver maple_unsupported_device; -static struct device maple_bus; -static int subdevice_map[MAPLE_PORTS]; -static unsigned long *maple_sendbuf, *maple_sendptr, *maple_lastptr; -static unsigned long maple_pnp_time; -static int started, scanning, fullscan; -static struct kmem_cache *maple_queue_cache; - -struct maple_device_specify { - int port; - int unit; -}; - -static bool checked[MAPLE_PORTS]; -static bool empty[MAPLE_PORTS]; -static struct maple_device *baseunits[MAPLE_PORTS]; - -/** - * maple_driver_register - register a maple driver - * @drv: maple driver to be registered. - * - * Registers the passed in @drv, while updating the bus type. - * Devices with matching function IDs will be automatically probed. - */ -int maple_driver_register(struct maple_driver *drv) -{ - if (!drv) - return -EINVAL; - - drv->drv.bus = &maple_bus_type; - - return driver_register(&drv->drv); -} -EXPORT_SYMBOL_GPL(maple_driver_register); - -/** - * maple_driver_unregister - unregister a maple driver. - * @drv: maple driver to unregister. - * - * Cleans up after maple_driver_register(). To be invoked in the exit - * path of any module drivers. - */ -void maple_driver_unregister(struct maple_driver *drv) -{ - driver_unregister(&drv->drv); -} -EXPORT_SYMBOL_GPL(maple_driver_unregister); - -/* set hardware registers to enable next round of dma */ -static void maple_dma_reset(void) -{ - __raw_writel(MAPLE_MAGIC, MAPLE_RESET); - /* set trig type to 0 for software trigger, 1 for hardware (VBLANK) */ - __raw_writel(1, MAPLE_TRIGTYPE); - /* - * Maple system register - * bits 31 - 16 timeout in units of 20nsec - * bit 12 hard trigger - set 0 to keep responding to VBLANK - * bits 9 - 8 set 00 for 2 Mbps, 01 for 1 Mbps - * bits 3 - 0 delay (in 1.3ms) between VBLANK and start of DMA - * max delay is 11 - */ - __raw_writel(MAPLE_2MBPS | MAPLE_TIMEOUT(0xFFFF), MAPLE_SPEED); - __raw_writel(virt_to_phys(maple_sendbuf), MAPLE_DMAADDR); - __raw_writel(1, MAPLE_ENABLE); -} - -/** - * maple_getcond_callback - setup handling MAPLE_COMMAND_GETCOND - * @dev: device responding - * @callback: handler callback - * @interval: interval in jiffies between callbacks - * @function: the function code for the device - */ -void maple_getcond_callback(struct maple_device *dev, - void (*callback) (struct mapleq *mq), - unsigned long interval, unsigned long function) -{ - dev->callback = callback; - dev->interval = interval; - dev->function = cpu_to_be32(function); - dev->when = jiffies; -} -EXPORT_SYMBOL_GPL(maple_getcond_callback); - -static int maple_dma_done(void) -{ - return (__raw_readl(MAPLE_STATE) & 1) == 0; -} - -static void maple_release_device(struct device *dev) -{ - struct maple_device *mdev; - struct mapleq *mq; - - mdev = to_maple_dev(dev); - mq = mdev->mq; - kmem_cache_free(maple_queue_cache, mq->recvbuf); - kfree(mq); - kfree(mdev); -} - -/** - * maple_add_packet - add a single instruction to the maple bus queue - * @mdev: maple device - * @function: function on device being queried - * @command: maple command to add - * @length: length of command string (in 32 bit words) - * @data: remainder of command string - */ -int maple_add_packet(struct maple_device *mdev, u32 function, u32 command, - size_t length, void *data) -{ - int ret = 0; - void *sendbuf = NULL; - - if (length) { - sendbuf = kcalloc(length, 4, GFP_KERNEL); - if (!sendbuf) { - ret = -ENOMEM; - goto out; - } - ((__be32 *)sendbuf)[0] = cpu_to_be32(function); - } - - mdev->mq->command = command; - mdev->mq->length = length; - if (length > 1) - memcpy(sendbuf + 4, data, (length - 1) * 4); - mdev->mq->sendbuf = sendbuf; - - mutex_lock(&maple_wlist_lock); - list_add_tail(&mdev->mq->list, &maple_waitq); - mutex_unlock(&maple_wlist_lock); -out: - return ret; -} -EXPORT_SYMBOL_GPL(maple_add_packet); - -static struct mapleq *maple_allocq(struct maple_device *mdev) -{ - struct mapleq *mq; - - mq = kzalloc(sizeof(*mq), GFP_KERNEL); - if (!mq) - goto failed_nomem; - - INIT_LIST_HEAD(&mq->list); - mq->dev = mdev; - mq->recvbuf = kmem_cache_zalloc(maple_queue_cache, GFP_KERNEL); - if (!mq->recvbuf) - goto failed_p2; - mq->recvbuf->buf = &((mq->recvbuf->bufx)[0]); - - return mq; - -failed_p2: - kfree(mq); -failed_nomem: - dev_err(&mdev->dev, "could not allocate memory for device (%d, %d)\n", - mdev->port, mdev->unit); - return NULL; -} - -static struct maple_device *maple_alloc_dev(int port, int unit) -{ - struct maple_device *mdev; - - /* zero this out to avoid kobj subsystem - * thinking it has already been registered */ - - mdev = kzalloc(sizeof(*mdev), GFP_KERNEL); - if (!mdev) - return NULL; - - mdev->port = port; - mdev->unit = unit; - - mdev->mq = maple_allocq(mdev); - - if (!mdev->mq) { - kfree(mdev); - return NULL; - } - mdev->dev.bus = &maple_bus_type; - mdev->dev.parent = &maple_bus; - init_waitqueue_head(&mdev->maple_wait); - return mdev; -} - -static void maple_free_dev(struct maple_device *mdev) -{ - kmem_cache_free(maple_queue_cache, mdev->mq->recvbuf); - kfree(mdev->mq); - kfree(mdev); -} - -/* process the command queue into a maple command block - * terminating command has bit 32 of first long set to 0 - */ -static void maple_build_block(struct mapleq *mq) -{ - int port, unit, from, to, len; - unsigned long *lsendbuf = mq->sendbuf; - - port = mq->dev->port & 3; - unit = mq->dev->unit; - len = mq->length; - from = port << 6; - to = (port << 6) | (unit > 0 ? (1 << (unit - 1)) & 0x1f : 0x20); - - *maple_lastptr &= 0x7fffffff; - maple_lastptr = maple_sendptr; - - *maple_sendptr++ = (port << 16) | len | 0x80000000; - *maple_sendptr++ = virt_to_phys(mq->recvbuf->buf); - *maple_sendptr++ = - mq->command | (to << 8) | (from << 16) | (len << 24); - while (len-- > 0) - *maple_sendptr++ = *lsendbuf++; -} - -/* build up command queue */ -static void maple_send(void) -{ - int i, maple_packets = 0; - struct mapleq *mq, *nmq; - - if (!maple_dma_done()) - return; - - /* disable DMA */ - __raw_writel(0, MAPLE_ENABLE); - - if (!list_empty(&maple_sentq)) - goto finish; - - mutex_lock(&maple_wlist_lock); - if (list_empty(&maple_waitq)) { - mutex_unlock(&maple_wlist_lock); - goto finish; - } - - maple_lastptr = maple_sendbuf; - maple_sendptr = maple_sendbuf; - - list_for_each_entry_safe(mq, nmq, &maple_waitq, list) { - maple_build_block(mq); - list_del_init(&mq->list); - list_add_tail(&mq->list, &maple_sentq); - if (maple_packets++ > MAPLE_MAXPACKETS) - break; - } - mutex_unlock(&maple_wlist_lock); - if (maple_packets > 0) { - for (i = 0; i < (1 << MAPLE_DMA_PAGES); i++) - __flush_purge_region(maple_sendbuf + i * PAGE_SIZE, - PAGE_SIZE); - } - -finish: - maple_dma_reset(); -} - -/* check if there is a driver registered likely to match this device */ -static int maple_check_matching_driver(struct device_driver *driver, - void *devptr) -{ - struct maple_driver *maple_drv; - struct maple_device *mdev; - - mdev = devptr; - maple_drv = to_maple_driver(driver); - if (mdev->devinfo.function & cpu_to_be32(maple_drv->function)) - return 1; - return 0; -} - -static void maple_detach_driver(struct maple_device *mdev) -{ - device_unregister(&mdev->dev); -} - -/* process initial MAPLE_COMMAND_DEVINFO for each device or port */ -static void maple_attach_driver(struct maple_device *mdev) -{ - char *p, *recvbuf; - unsigned long function; - int matched, error; - - recvbuf = mdev->mq->recvbuf->buf; - /* copy the data as individual elements in - * case of memory optimisation */ - memcpy(&mdev->devinfo.function, recvbuf + 4, 4); - memcpy(&mdev->devinfo.function_data[0], recvbuf + 8, 12); - memcpy(&mdev->devinfo.area_code, recvbuf + 20, 1); - memcpy(&mdev->devinfo.connector_direction, recvbuf + 21, 1); - memcpy(&mdev->devinfo.product_name[0], recvbuf + 22, 30); - memcpy(&mdev->devinfo.standby_power, recvbuf + 112, 2); - memcpy(&mdev->devinfo.max_power, recvbuf + 114, 2); - memcpy(mdev->product_name, mdev->devinfo.product_name, 30); - mdev->product_name[30] = '\0'; - memcpy(mdev->product_licence, mdev->devinfo.product_licence, 60); - mdev->product_licence[60] = '\0'; - - for (p = mdev->product_name + 29; mdev->product_name <= p; p--) - if (*p == ' ') - *p = '\0'; - else - break; - for (p = mdev->product_licence + 59; mdev->product_licence <= p; p--) - if (*p == ' ') - *p = '\0'; - else - break; - - function = be32_to_cpu(mdev->devinfo.function); - - dev_info(&mdev->dev, "detected %s: function 0x%lX: at (%d, %d)\n", - mdev->product_name, function, mdev->port, mdev->unit); - - if (function > 0x200) { - /* Do this silently - as not a real device */ - function = 0; - mdev->driver = &maple_unsupported_device; - dev_set_name(&mdev->dev, "%d:0.port", mdev->port); - } else { - matched = - bus_for_each_drv(&maple_bus_type, NULL, mdev, - maple_check_matching_driver); - - if (matched == 0) { - /* Driver does not exist yet */ - dev_info(&mdev->dev, "no driver found\n"); - mdev->driver = &maple_unsupported_device; - } - dev_set_name(&mdev->dev, "%d:0%d.%lX", mdev->port, - mdev->unit, function); - } - - mdev->function = function; - mdev->dev.release = &maple_release_device; - - atomic_set(&mdev->busy, 0); - error = device_register(&mdev->dev); - if (error) { - dev_warn(&mdev->dev, "could not register device at" - " (%d, %d), with error 0x%X\n", mdev->unit, - mdev->port, error); - maple_free_dev(mdev); - mdev = NULL; - return; - } -} - -/* - * if device has been registered for the given - * port and unit then return 1 - allows identification - * of which devices need to be attached or detached - */ -static int check_maple_device(struct device *device, void *portptr) -{ - struct maple_device_specify *ds; - struct maple_device *mdev; - - ds = portptr; - mdev = to_maple_dev(device); - if (mdev->port == ds->port && mdev->unit == ds->unit) - return 1; - return 0; -} - -static int setup_maple_commands(struct device *device, void *ignored) -{ - int add; - struct maple_device *mdev = to_maple_dev(device); - if (mdev->interval > 0 && atomic_read(&mdev->busy) == 0 && - time_after(jiffies, mdev->when)) { - /* bounce if we cannot add */ - add = maple_add_packet(mdev, - be32_to_cpu(mdev->devinfo.function), - MAPLE_COMMAND_GETCOND, 1, NULL); - if (!add) - mdev->when = jiffies + mdev->interval; - } else { - if (time_after(jiffies, maple_pnp_time)) - /* Ensure we don't have block reads and devinfo - * calls interfering with one another - so flag the - * device as busy */ - if (atomic_read(&mdev->busy) == 0) { - atomic_set(&mdev->busy, 1); - maple_add_packet(mdev, 0, - MAPLE_COMMAND_DEVINFO, 0, NULL); - } - } - return 0; -} - -/* VBLANK bottom half - implemented via workqueue */ -static void maple_vblank_handler(struct work_struct *work) -{ - int x, locking; - struct maple_device *mdev; - - if (!maple_dma_done()) - return; - - __raw_writel(0, MAPLE_ENABLE); - - if (!list_empty(&maple_sentq)) - goto finish; - - /* - * Set up essential commands - to fetch data and - * check devices are still present - */ - bus_for_each_dev(&maple_bus_type, NULL, NULL, - setup_maple_commands); - - if (time_after(jiffies, maple_pnp_time)) { - /* - * Scan the empty ports - bus is flakey and may have - * mis-reported emptyness - */ - for (x = 0; x < MAPLE_PORTS; x++) { - if (checked[x] && empty[x]) { - mdev = baseunits[x]; - if (!mdev) - break; - atomic_set(&mdev->busy, 1); - locking = maple_add_packet(mdev, 0, - MAPLE_COMMAND_DEVINFO, 0, NULL); - if (!locking) - break; - } - } - - maple_pnp_time = jiffies + MAPLE_PNP_INTERVAL; - } - -finish: - maple_send(); -} - -/* handle devices added via hotplugs - placing them on queue for DEVINFO */ -static void maple_map_subunits(struct maple_device *mdev, int submask) -{ - int retval, k, devcheck; - struct maple_device *mdev_add; - struct maple_device_specify ds; - - ds.port = mdev->port; - for (k = 0; k < 5; k++) { - ds.unit = k + 1; - retval = - bus_for_each_dev(&maple_bus_type, NULL, &ds, - check_maple_device); - if (retval) { - submask = submask >> 1; - continue; - } - devcheck = submask & 0x01; - if (devcheck) { - mdev_add = maple_alloc_dev(mdev->port, k + 1); - if (!mdev_add) - return; - atomic_set(&mdev_add->busy, 1); - maple_add_packet(mdev_add, 0, MAPLE_COMMAND_DEVINFO, - 0, NULL); - /* mark that we are checking sub devices */ - scanning = 1; - } - submask = submask >> 1; - } -} - -/* mark a device as removed */ -static void maple_clean_submap(struct maple_device *mdev) -{ - int killbit; - - killbit = (mdev->unit > 0 ? (1 << (mdev->unit - 1)) & 0x1f : 0x20); - killbit = ~killbit; - killbit &= 0xFF; - subdevice_map[mdev->port] = subdevice_map[mdev->port] & killbit; -} - -/* handle empty port or hotplug removal */ -static void maple_response_none(struct maple_device *mdev) -{ - maple_clean_submap(mdev); - - if (likely(mdev->unit != 0)) { - /* - * Block devices play up - * and give the impression they have - * been removed even when still in place or - * trip the mtd layer when they have - * really gone - this code traps that eventuality - * and ensures we aren't overloaded with useless - * error messages - */ - if (mdev->can_unload) { - if (!mdev->can_unload(mdev)) { - atomic_set(&mdev->busy, 2); - wake_up(&mdev->maple_wait); - return; - } - } - - dev_info(&mdev->dev, "detaching device at (%d, %d)\n", - mdev->port, mdev->unit); - maple_detach_driver(mdev); - return; - } else { - if (!started || !fullscan) { - if (checked[mdev->port] == false) { - checked[mdev->port] = true; - empty[mdev->port] = true; - dev_info(&mdev->dev, "no devices" - " to port %d\n", mdev->port); - } - return; - } - } - /* Some hardware devices generate false detach messages on unit 0 */ - atomic_set(&mdev->busy, 0); -} - -/* preprocess hotplugs or scans */ -static void maple_response_devinfo(struct maple_device *mdev, - char *recvbuf) -{ - char submask; - if (!started || (scanning == 2) || !fullscan) { - if ((mdev->unit == 0) && (checked[mdev->port] == false)) { - checked[mdev->port] = true; - maple_attach_driver(mdev); - } else { - if (mdev->unit != 0) - maple_attach_driver(mdev); - if (mdev->unit == 0) { - empty[mdev->port] = false; - maple_attach_driver(mdev); - } - } - } - if (mdev->unit == 0) { - submask = recvbuf[2] & 0x1F; - if (submask ^ subdevice_map[mdev->port]) { - maple_map_subunits(mdev, submask); - subdevice_map[mdev->port] = submask; - } - } -} - -static void maple_response_fileerr(struct maple_device *mdev, void *recvbuf) -{ - if (mdev->fileerr_handler) { - mdev->fileerr_handler(mdev, recvbuf); - return; - } else - dev_warn(&mdev->dev, "device at (%d, %d) reports" - "file error 0x%X\n", mdev->port, mdev->unit, - ((int *)recvbuf)[1]); -} - -static void maple_port_rescan(void) -{ - int i; - struct maple_device *mdev; - - fullscan = 1; - for (i = 0; i < MAPLE_PORTS; i++) { - if (checked[i] == false) { - fullscan = 0; - mdev = baseunits[i]; - maple_add_packet(mdev, 0, MAPLE_COMMAND_DEVINFO, - 0, NULL); - } - } -} - -/* maple dma end bottom half - implemented via workqueue */ -static void maple_dma_handler(struct work_struct *work) -{ - struct mapleq *mq, *nmq; - struct maple_device *mdev; - char *recvbuf; - enum maple_code code; - - if (!maple_dma_done()) - return; - __raw_writel(0, MAPLE_ENABLE); - if (!list_empty(&maple_sentq)) { - list_for_each_entry_safe(mq, nmq, &maple_sentq, list) { - mdev = mq->dev; - recvbuf = mq->recvbuf->buf; - __flush_invalidate_region(sh_cacheop_vaddr(recvbuf), - 0x400); - code = recvbuf[0]; - kfree(mq->sendbuf); - list_del_init(&mq->list); - switch (code) { - case MAPLE_RESPONSE_NONE: - maple_response_none(mdev); - break; - - case MAPLE_RESPONSE_DEVINFO: - maple_response_devinfo(mdev, recvbuf); - atomic_set(&mdev->busy, 0); - break; - - case MAPLE_RESPONSE_DATATRF: - if (mdev->callback) - mdev->callback(mq); - atomic_set(&mdev->busy, 0); - wake_up(&mdev->maple_wait); - break; - - case MAPLE_RESPONSE_FILEERR: - maple_response_fileerr(mdev, recvbuf); - atomic_set(&mdev->busy, 0); - wake_up(&mdev->maple_wait); - break; - - case MAPLE_RESPONSE_AGAIN: - case MAPLE_RESPONSE_BADCMD: - case MAPLE_RESPONSE_BADFUNC: - dev_warn(&mdev->dev, "non-fatal error" - " 0x%X at (%d, %d)\n", code, - mdev->port, mdev->unit); - atomic_set(&mdev->busy, 0); - break; - - case MAPLE_RESPONSE_ALLINFO: - dev_notice(&mdev->dev, "extended" - " device information request for (%d, %d)" - " but call is not supported\n", mdev->port, - mdev->unit); - atomic_set(&mdev->busy, 0); - break; - - case MAPLE_RESPONSE_OK: - atomic_set(&mdev->busy, 0); - wake_up(&mdev->maple_wait); - break; - - default: - break; - } - } - /* if scanning is 1 then we have subdevices to check */ - if (scanning == 1) { - maple_send(); - scanning = 2; - } else - scanning = 0; - /*check if we have actually tested all ports yet */ - if (!fullscan) - maple_port_rescan(); - /* mark that we have been through the first scan */ - started = 1; - } - maple_send(); -} - -static irqreturn_t maple_dma_interrupt(int irq, void *dev_id) -{ - /* Load everything into the bottom half */ - schedule_work(&maple_dma_process); - return IRQ_HANDLED; -} - -static irqreturn_t maple_vblank_interrupt(int irq, void *dev_id) -{ - schedule_work(&maple_vblank_process); - return IRQ_HANDLED; -} - -static int maple_set_dma_interrupt_handler(void) -{ - return request_irq(HW_EVENT_MAPLE_DMA, maple_dma_interrupt, - IRQF_SHARED, "maple bus DMA", &maple_unsupported_device); -} - -static int maple_set_vblank_interrupt_handler(void) -{ - return request_irq(HW_EVENT_VSYNC, maple_vblank_interrupt, - IRQF_SHARED, "maple bus VBLANK", &maple_unsupported_device); -} - -static int maple_get_dma_buffer(void) -{ - maple_sendbuf = - (void *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, - MAPLE_DMA_PAGES); - if (!maple_sendbuf) - return -ENOMEM; - return 0; -} - -static int maple_match_bus_driver(struct device *devptr, - struct device_driver *drvptr) -{ - struct maple_driver *maple_drv = to_maple_driver(drvptr); - struct maple_device *maple_dev = to_maple_dev(devptr); - - /* Trap empty port case */ - if (maple_dev->devinfo.function == 0xFFFFFFFF) - return 0; - else if (maple_dev->devinfo.function & - cpu_to_be32(maple_drv->function)) - return 1; - return 0; -} - -static int maple_bus_uevent(struct device *dev, - struct kobj_uevent_env *env) -{ - return 0; -} - -static void maple_bus_release(struct device *dev) -{ -} - -static struct maple_driver maple_unsupported_device = { - .drv = { - .name = "maple_unsupported_device", - .bus = &maple_bus_type, - }, -}; -/* - * maple_bus_type - core maple bus structure - */ -struct bus_type maple_bus_type = { - .name = "maple", - .match = maple_match_bus_driver, - .uevent = maple_bus_uevent, -}; -EXPORT_SYMBOL_GPL(maple_bus_type); - -static struct device maple_bus = { - .init_name = "maple", - .release = maple_bus_release, -}; - -static int __init maple_bus_init(void) -{ - int retval, i; - struct maple_device *mdev[MAPLE_PORTS]; - - __raw_writel(0, MAPLE_ENABLE); - - retval = device_register(&maple_bus); - if (retval) - goto cleanup; - - retval = bus_register(&maple_bus_type); - if (retval) - goto cleanup_device; - - retval = driver_register(&maple_unsupported_device.drv); - if (retval) - goto cleanup_bus; - - /* allocate memory for maple bus dma */ - retval = maple_get_dma_buffer(); - if (retval) { - dev_err(&maple_bus, "failed to allocate DMA buffers\n"); - goto cleanup_basic; - } - - /* set up DMA interrupt handler */ - retval = maple_set_dma_interrupt_handler(); - if (retval) { - dev_err(&maple_bus, "bus failed to grab maple " - "DMA IRQ\n"); - goto cleanup_dma; - } - - /* set up VBLANK interrupt handler */ - retval = maple_set_vblank_interrupt_handler(); - if (retval) { - dev_err(&maple_bus, "bus failed to grab VBLANK IRQ\n"); - goto cleanup_irq; - } - - maple_queue_cache = KMEM_CACHE(maple_buffer, SLAB_HWCACHE_ALIGN); - - if (!maple_queue_cache) { - retval = -ENOMEM; - goto cleanup_bothirqs; - } - - INIT_LIST_HEAD(&maple_waitq); - INIT_LIST_HEAD(&maple_sentq); - - /* setup maple ports */ - for (i = 0; i < MAPLE_PORTS; i++) { - checked[i] = false; - empty[i] = false; - mdev[i] = maple_alloc_dev(i, 0); - if (!mdev[i]) { - while (i-- > 0) - maple_free_dev(mdev[i]); - retval = -ENOMEM; - goto cleanup_cache; - } - baseunits[i] = mdev[i]; - atomic_set(&mdev[i]->busy, 1); - maple_add_packet(mdev[i], 0, MAPLE_COMMAND_DEVINFO, 0, NULL); - subdevice_map[i] = 0; - } - - maple_pnp_time = jiffies + HZ; - /* prepare initial queue */ - maple_send(); - dev_info(&maple_bus, "bus core now registered\n"); - - return 0; - -cleanup_cache: - kmem_cache_destroy(maple_queue_cache); - -cleanup_bothirqs: - free_irq(HW_EVENT_VSYNC, 0); - -cleanup_irq: - free_irq(HW_EVENT_MAPLE_DMA, 0); - -cleanup_dma: - free_pages((unsigned long) maple_sendbuf, MAPLE_DMA_PAGES); - -cleanup_basic: - driver_unregister(&maple_unsupported_device.drv); - -cleanup_bus: - bus_unregister(&maple_bus_type); - -cleanup_device: - device_unregister(&maple_bus); - -cleanup: - printk(KERN_ERR "Maple bus registration failed\n"); - return retval; -} -/* Push init to later to ensure hardware gets detected */ -fs_initcall(maple_bus_init); diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c deleted file mode 100644 index c887ecdaf19b7c..00000000000000 --- a/drivers/sh/pm_runtime.c +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Runtime PM support code - * - * Copyright (C) 2009-2010 Magnus Damm - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static struct dev_pm_domain default_pm_domain = { - .ops = { - USE_PM_CLK_RUNTIME_OPS - USE_PLATFORM_PM_SLEEP_OPS - }, -}; - -static struct pm_clk_notifier_block platform_bus_notifier = { - .pm_domain = &default_pm_domain, - .con_ids = { NULL, }, -}; - -static int __init sh_pm_runtime_init(void) -{ - pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier); - return 0; -} -core_initcall(sh_pm_runtime_init); diff --git a/drivers/sh/superhyway/Makefile b/drivers/sh/superhyway/Makefile deleted file mode 100644 index 6dfa41f160af6b..00000000000000 --- a/drivers/sh/superhyway/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# Makefile for the SuperHyway bus drivers. -# - -obj-$(CONFIG_SUPERHYWAY) += superhyway.o -obj-$(CONFIG_SYSFS) += superhyway-sysfs.o - diff --git a/drivers/sh/superhyway/superhyway-sysfs.c b/drivers/sh/superhyway/superhyway-sysfs.c deleted file mode 100644 index 774f31b564f8f8..00000000000000 --- a/drivers/sh/superhyway/superhyway-sysfs.c +++ /dev/null @@ -1,54 +0,0 @@ -/* - * drivers/sh/superhyway/superhyway-sysfs.c - * - * SuperHyway Bus sysfs interface - * - * Copyright (C) 2004, 2005 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include - -#define superhyway_ro_attr(name, fmt, field) \ -static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf) \ -{ \ - struct superhyway_device *s = to_superhyway_device(dev); \ - return sprintf(buf, fmt, s->field); \ -} \ -static DEVICE_ATTR_RO(name); - -/* VCR flags */ -superhyway_ro_attr(perr_flags, "0x%02x\n", vcr.perr_flags); -superhyway_ro_attr(merr_flags, "0x%02x\n", vcr.merr_flags); -superhyway_ro_attr(mod_vers, "0x%04x\n", vcr.mod_vers); -superhyway_ro_attr(mod_id, "0x%04x\n", vcr.mod_id); -superhyway_ro_attr(bot_mb, "0x%02x\n", vcr.bot_mb); -superhyway_ro_attr(top_mb, "0x%02x\n", vcr.top_mb); - -/* Misc */ -superhyway_ro_attr(resource, "0x%08lx\n", resource[0].start); - -static struct attribute *superhyway_dev_attrs[] = { - &dev_attr_perr_flags.attr, - &dev_attr_merr_flags.attr, - &dev_attr_mod_vers.attr, - &dev_attr_mod_id.attr, - &dev_attr_bot_mb.attr, - &dev_attr_top_mb.attr, - &dev_attr_resource.attr, - NULL, -}; - -static const struct attribute_group superhyway_dev_group = { - .attrs = superhyway_dev_attrs, -}; - -const struct attribute_group *superhyway_dev_groups[] = { - &superhyway_dev_group, - NULL, -}; diff --git a/drivers/sh/superhyway/superhyway.c b/drivers/sh/superhyway/superhyway.c deleted file mode 100644 index 44324abe21dada..00000000000000 --- a/drivers/sh/superhyway/superhyway.c +++ /dev/null @@ -1,234 +0,0 @@ -/* - * drivers/sh/superhyway/superhyway.c - * - * SuperHyway Bus Driver - * - * Copyright (C) 2004, 2005 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include - -static int superhyway_devices; - -static struct device superhyway_bus_device = { - .init_name = "superhyway", -}; - -static void superhyway_device_release(struct device *dev) -{ - struct superhyway_device *sdev = to_superhyway_device(dev); - - kfree(sdev->resource); - kfree(sdev); -} - -/** - * superhyway_add_device - Add a SuperHyway module - * @base: Physical address where module is mapped. - * @sdev: SuperHyway device to add, or NULL to allocate a new one. - * @bus: Bus where SuperHyway module resides. - * - * This is responsible for adding a new SuperHyway module. This sets up a new - * struct superhyway_device for the module being added if @sdev == NULL. - * - * Devices are initially added in the order that they are scanned (from the - * top-down of the memory map), and are assigned an ID based on the order that - * they are added. Any manual addition of a module will thus get the ID after - * the devices already discovered regardless of where it resides in memory. - * - * Further work can and should be done in superhyway_scan_bus(), to be sure - * that any new modules are properly discovered and subsequently registered. - */ -int superhyway_add_device(unsigned long base, struct superhyway_device *sdev, - struct superhyway_bus *bus) -{ - struct superhyway_device *dev = sdev; - - if (!dev) { - dev = kzalloc(sizeof(struct superhyway_device), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - } - - dev->bus = bus; - superhyway_read_vcr(dev, base, &dev->vcr); - - if (!dev->resource) { - dev->resource = kzalloc(sizeof(struct resource), GFP_KERNEL); - if (!dev->resource) { - kfree(dev); - return -ENOMEM; - } - - dev->resource->name = dev->name; - dev->resource->start = base; - dev->resource->end = dev->resource->start + 0x01000000; - } - - dev->dev.parent = &superhyway_bus_device; - dev->dev.bus = &superhyway_bus_type; - dev->dev.release = superhyway_device_release; - dev->id.id = dev->vcr.mod_id; - - sprintf(dev->name, "SuperHyway device %04x", dev->id.id); - dev_set_name(&dev->dev, "%02x", superhyway_devices); - - superhyway_devices++; - - return device_register(&dev->dev); -} - -int superhyway_add_devices(struct superhyway_bus *bus, - struct superhyway_device **devices, - int nr_devices) -{ - int i, ret = 0; - - for (i = 0; i < nr_devices; i++) { - struct superhyway_device *dev = devices[i]; - ret |= superhyway_add_device(dev->resource[0].start, dev, bus); - } - - return ret; -} - -static int __init superhyway_init(void) -{ - struct superhyway_bus *bus; - int ret; - - ret = device_register(&superhyway_bus_device); - if (unlikely(ret)) - return ret; - - for (bus = superhyway_channels; bus->ops; bus++) - ret |= superhyway_scan_bus(bus); - - return ret; -} -postcore_initcall(superhyway_init); - -static const struct superhyway_device_id * -superhyway_match_id(const struct superhyway_device_id *ids, - struct superhyway_device *dev) -{ - while (ids->id) { - if (ids->id == dev->id.id) - return ids; - - ids++; - } - - return NULL; -} - -static int superhyway_device_probe(struct device *dev) -{ - struct superhyway_device *shyway_dev = to_superhyway_device(dev); - struct superhyway_driver *shyway_drv = to_superhyway_driver(dev->driver); - - if (shyway_drv && shyway_drv->probe) { - const struct superhyway_device_id *id; - - id = superhyway_match_id(shyway_drv->id_table, shyway_dev); - if (id) - return shyway_drv->probe(shyway_dev, id); - } - - return -ENODEV; -} - -static void superhyway_device_remove(struct device *dev) -{ - struct superhyway_device *shyway_dev = to_superhyway_device(dev); - struct superhyway_driver *shyway_drv = to_superhyway_driver(dev->driver); - - if (shyway_drv->remove) - shyway_drv->remove(shyway_dev); -} - -/** - * superhyway_register_driver - Register a new SuperHyway driver - * @drv: SuperHyway driver to register. - * - * This registers the passed in @drv. Any devices matching the id table will - * automatically be populated and handed off to the driver's specified probe - * routine. - */ -int superhyway_register_driver(struct superhyway_driver *drv) -{ - drv->drv.name = drv->name; - drv->drv.bus = &superhyway_bus_type; - - return driver_register(&drv->drv); -} - -/** - * superhyway_unregister_driver - Unregister a SuperHyway driver - * @drv: SuperHyway driver to unregister. - * - * This cleans up after superhyway_register_driver(), and should be invoked in - * the exit path of any module drivers. - */ -void superhyway_unregister_driver(struct superhyway_driver *drv) -{ - driver_unregister(&drv->drv); -} - -static int superhyway_bus_match(struct device *dev, struct device_driver *drv) -{ - struct superhyway_device *shyway_dev = to_superhyway_device(dev); - struct superhyway_driver *shyway_drv = to_superhyway_driver(drv); - const struct superhyway_device_id *ids = shyway_drv->id_table; - - if (!ids) - return -EINVAL; - if (superhyway_match_id(ids, shyway_dev)) - return 1; - - return -ENODEV; -} - -struct bus_type superhyway_bus_type = { - .name = "superhyway", - .match = superhyway_bus_match, -#ifdef CONFIG_SYSFS - .dev_groups = superhyway_dev_groups, -#endif - .probe = superhyway_device_probe, - .remove = superhyway_device_remove, -}; - -static int __init superhyway_bus_init(void) -{ - return bus_register(&superhyway_bus_type); -} - -static void __exit superhyway_bus_exit(void) -{ - device_unregister(&superhyway_bus_device); - bus_unregister(&superhyway_bus_type); -} - -core_initcall(superhyway_bus_init); -module_exit(superhyway_bus_exit); - -EXPORT_SYMBOL(superhyway_bus_type); -EXPORT_SYMBOL(superhyway_add_device); -EXPORT_SYMBOL(superhyway_add_devices); -EXPORT_SYMBOL(superhyway_register_driver); -EXPORT_SYMBOL(superhyway_unregister_driver); - -MODULE_LICENSE("GPL"); diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h deleted file mode 100644 index 7bed5be886c657..00000000000000 --- a/include/linux/sh_clk.h +++ /dev/null @@ -1,213 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __SH_CLOCK_H -#define __SH_CLOCK_H - -#include -#include -#include -#include -#include -#include -#include - -struct clk; - -struct clk_mapping { - phys_addr_t phys; - void __iomem *base; - unsigned long len; - struct kref ref; -}; - -struct sh_clk_ops { -#ifdef CONFIG_SH_CLK_CPG_LEGACY - void (*init)(struct clk *clk); -#endif - int (*enable)(struct clk *clk); - void (*disable)(struct clk *clk); - unsigned long (*recalc)(struct clk *clk); - int (*set_rate)(struct clk *clk, unsigned long rate); - int (*set_parent)(struct clk *clk, struct clk *parent); - long (*round_rate)(struct clk *clk, unsigned long rate); -}; - -#define SH_CLK_DIV_MSK(div) ((1 << (div)) - 1) -#define SH_CLK_DIV4_MSK SH_CLK_DIV_MSK(4) -#define SH_CLK_DIV6_MSK SH_CLK_DIV_MSK(6) - -struct clk { - struct list_head node; - struct clk *parent; - struct clk **parent_table; /* list of parents to */ - unsigned short parent_num; /* choose between */ - unsigned char src_shift; /* source clock field in the */ - unsigned char src_width; /* configuration register */ - struct sh_clk_ops *ops; - - struct list_head children; - struct list_head sibling; /* node for children */ - - int usecount; - - unsigned long rate; - unsigned long flags; - - void __iomem *enable_reg; - void __iomem *status_reg; - unsigned int enable_bit; - void __iomem *mapped_reg; - - unsigned int div_mask; - unsigned long arch_flags; - void *priv; - struct clk_mapping *mapping; - struct cpufreq_frequency_table *freq_table; - unsigned int nr_freqs; -}; - -#define CLK_ENABLE_ON_INIT BIT(0) - -#define CLK_ENABLE_REG_32BIT BIT(1) /* default access size */ -#define CLK_ENABLE_REG_16BIT BIT(2) -#define CLK_ENABLE_REG_8BIT BIT(3) - -#define CLK_MASK_DIV_ON_DISABLE BIT(4) - -#define CLK_ENABLE_REG_MASK (CLK_ENABLE_REG_32BIT | \ - CLK_ENABLE_REG_16BIT | \ - CLK_ENABLE_REG_8BIT) - -/* drivers/sh/clk.c */ -unsigned long followparent_recalc(struct clk *); -void recalculate_root_clocks(void); -void propagate_rate(struct clk *); -int clk_reparent(struct clk *child, struct clk *parent); -int clk_register(struct clk *); -void clk_unregister(struct clk *); -void clk_enable_init_clocks(void); - -struct clk_div_mult_table { - unsigned int *divisors; - unsigned int nr_divisors; - unsigned int *multipliers; - unsigned int nr_multipliers; -}; - -struct cpufreq_frequency_table; -void clk_rate_table_build(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - int nr_freqs, - struct clk_div_mult_table *src_table, - unsigned long *bitmap); - -long clk_rate_table_round(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - unsigned long rate); - -int clk_rate_table_find(struct clk *clk, - struct cpufreq_frequency_table *freq_table, - unsigned long rate); - -long clk_rate_div_range_round(struct clk *clk, unsigned int div_min, - unsigned int div_max, unsigned long rate); - -long clk_rate_mult_range_round(struct clk *clk, unsigned int mult_min, - unsigned int mult_max, unsigned long rate); - -#define SH_CLK_MSTP(_parent, _enable_reg, _enable_bit, _status_reg, _flags) \ -{ \ - .parent = _parent, \ - .enable_reg = (void __iomem *)_enable_reg, \ - .enable_bit = _enable_bit, \ - .status_reg = _status_reg, \ - .flags = _flags, \ -} - -#define SH_CLK_MSTP32(_p, _r, _b, _f) \ - SH_CLK_MSTP(_p, _r, _b, 0, _f | CLK_ENABLE_REG_32BIT) - -#define SH_CLK_MSTP32_STS(_p, _r, _b, _s, _f) \ - SH_CLK_MSTP(_p, _r, _b, _s, _f | CLK_ENABLE_REG_32BIT) - -#define SH_CLK_MSTP16(_p, _r, _b, _f) \ - SH_CLK_MSTP(_p, _r, _b, 0, _f | CLK_ENABLE_REG_16BIT) - -#define SH_CLK_MSTP8(_p, _r, _b, _f) \ - SH_CLK_MSTP(_p, _r, _b, 0, _f | CLK_ENABLE_REG_8BIT) - -int sh_clk_mstp_register(struct clk *clks, int nr); - -/* - * MSTP registration never really cared about access size, despite the - * original enable/disable pairs assuming a 32-bit access. Clocks are - * responsible for defining their access sizes either directly or via the - * clock definition wrappers. - */ -static inline int __deprecated sh_clk_mstp32_register(struct clk *clks, int nr) -{ - return sh_clk_mstp_register(clks, nr); -} - -#define SH_CLK_DIV4(_parent, _reg, _shift, _div_bitmap, _flags) \ -{ \ - .parent = _parent, \ - .enable_reg = (void __iomem *)_reg, \ - .enable_bit = _shift, \ - .arch_flags = _div_bitmap, \ - .div_mask = SH_CLK_DIV4_MSK, \ - .flags = _flags, \ -} - -struct clk_div_table { - struct clk_div_mult_table *div_mult_table; - void (*kick)(struct clk *clk); -}; - -#define clk_div4_table clk_div_table - -int sh_clk_div4_register(struct clk *clks, int nr, - struct clk_div4_table *table); -int sh_clk_div4_enable_register(struct clk *clks, int nr, - struct clk_div4_table *table); -int sh_clk_div4_reparent_register(struct clk *clks, int nr, - struct clk_div4_table *table); - -#define SH_CLK_DIV6_EXT(_reg, _flags, _parents, \ - _num_parents, _src_shift, _src_width) \ -{ \ - .enable_reg = (void __iomem *)_reg, \ - .enable_bit = 0, /* unused */ \ - .flags = _flags | CLK_MASK_DIV_ON_DISABLE, \ - .div_mask = SH_CLK_DIV6_MSK, \ - .parent_table = _parents, \ - .parent_num = _num_parents, \ - .src_shift = _src_shift, \ - .src_width = _src_width, \ -} - -#define SH_CLK_DIV6(_parent, _reg, _flags) \ -{ \ - .parent = _parent, \ - .enable_reg = (void __iomem *)_reg, \ - .enable_bit = 0, /* unused */ \ - .div_mask = SH_CLK_DIV6_MSK, \ - .flags = _flags | CLK_MASK_DIV_ON_DISABLE, \ -} - -int sh_clk_div6_register(struct clk *clks, int nr); -int sh_clk_div6_reparent_register(struct clk *clks, int nr); - -#define CLKDEV_CON_ID(_id, _clk) { .con_id = _id, .clk = _clk } -#define CLKDEV_DEV_ID(_id, _clk) { .dev_id = _id, .clk = _clk } -#define CLKDEV_ICK_ID(_cid, _did, _clk) { .con_id = _cid, .dev_id = _did, .clk = _clk } - -/* .enable_reg will be updated to .mapping on sh_clk_fsidiv_register() */ -#define SH_CLK_FSIDIV(_reg, _parent) \ -{ \ - .enable_reg = (void __iomem *)_reg, \ - .parent = _parent, \ -} - -int sh_clk_fsidiv_register(struct clk *clks, int nr); - -#endif /* __SH_CLOCK_H */ diff --git a/include/linux/superhyway.h b/include/linux/superhyway.h deleted file mode 100644 index 8d3376775813d3..00000000000000 --- a/include/linux/superhyway.h +++ /dev/null @@ -1,107 +0,0 @@ -/* - * include/linux/superhyway.h - * - * SuperHyway Bus definitions - * - * Copyright (C) 2004, 2005 Paul Mundt - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ -#ifndef __LINUX_SUPERHYWAY_H -#define __LINUX_SUPERHYWAY_H - -#include - -/* - * SuperHyway IDs - */ -#define SUPERHYWAY_DEVICE_ID_SH5_DMAC 0x0183 - -struct superhyway_vcr_info { - u8 perr_flags; /* P-port Error flags */ - u8 merr_flags; /* Module Error flags */ - u16 mod_vers; /* Module Version */ - u16 mod_id; /* Module ID */ - u8 bot_mb; /* Bottom Memory block */ - u8 top_mb; /* Top Memory block */ -}; - -struct superhyway_ops { - int (*read_vcr)(unsigned long base, struct superhyway_vcr_info *vcr); - int (*write_vcr)(unsigned long base, struct superhyway_vcr_info vcr); -}; - -struct superhyway_bus { - struct superhyway_ops *ops; -}; - -extern struct superhyway_bus superhyway_channels[]; - -struct superhyway_device_id { - unsigned int id; - unsigned long driver_data; -}; - -struct superhyway_device; -extern struct bus_type superhyway_bus_type; - -struct superhyway_driver { - char *name; - - const struct superhyway_device_id *id_table; - struct device_driver drv; - - int (*probe)(struct superhyway_device *dev, const struct superhyway_device_id *id); - void (*remove)(struct superhyway_device *dev); -}; - -#define to_superhyway_driver(d) container_of((d), struct superhyway_driver, drv) - -struct superhyway_device { - char name[32]; - - struct device dev; - - struct superhyway_device_id id; - struct superhyway_driver *drv; - struct superhyway_bus *bus; - - int num_resources; - struct resource *resource; - struct superhyway_vcr_info vcr; -}; - -#define to_superhyway_device(d) container_of((d), struct superhyway_device, dev) - -#define superhyway_get_drvdata(d) dev_get_drvdata(&(d)->dev) -#define superhyway_set_drvdata(d,p) dev_set_drvdata(&(d)->dev, (p)) - -static inline int -superhyway_read_vcr(struct superhyway_device *dev, unsigned long base, - struct superhyway_vcr_info *vcr) -{ - return dev->bus->ops->read_vcr(base, vcr); -} - -static inline int -superhyway_write_vcr(struct superhyway_device *dev, unsigned long base, - struct superhyway_vcr_info vcr) -{ - return dev->bus->ops->write_vcr(base, vcr); -} - -extern int superhyway_scan_bus(struct superhyway_bus *); - -/* drivers/sh/superhyway/superhyway.c */ -int superhyway_register_driver(struct superhyway_driver *); -void superhyway_unregister_driver(struct superhyway_driver *); -int superhyway_add_device(unsigned long base, struct superhyway_device *, struct superhyway_bus *); -int superhyway_add_devices(struct superhyway_bus *bus, struct superhyway_device **devices, int nr_devices); - -/* drivers/sh/superhyway/superhyway-sysfs.c */ -extern const struct attribute_group *superhyway_dev_groups[]; - -#endif /* __LINUX_SUPERHYWAY_H */ - From patchwork Fri Jan 13 06:23:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643099 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B48C678D7 for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUT-000lua-TT; Fri, 13 Jan 2023 06:24:38 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 15/22] spi: remove spi-sh Date: Fri, 13 Jan 2023 07:23:32 +0100 Message-Id: <20230113062339.1909087-16-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/spi/Kconfig | 6 - drivers/spi/Makefile | 1 - drivers/spi/spi-sh.c | 474 ------------------------------------------- 3 files changed, 481 deletions(-) delete mode 100644 drivers/spi/spi-sh.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 2c5226adf5e1d3..7508dcef909c78 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -882,12 +882,6 @@ config SPI_SH_MSIOF help SPI driver for SuperH and SH Mobile MSIOF blocks. -config SPI_SH - tristate "SuperH SPI controller" - depends on SUPERH || COMPILE_TEST - help - SPI driver for SuperH SPI blocks. - config SPI_SH_SCI tristate "SuperH SCI SPI controller" depends on SUPERH diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index be9ba40ef8d03d..342a7eb5181c9b 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -116,7 +116,6 @@ obj-$(CONFIG_SPI_S3C24XX) += spi-s3c24xx-hw.o spi-s3c24xx-hw-y := spi-s3c24xx.o obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o -obj-$(CONFIG_SPI_SH) += spi-sh.o obj-$(CONFIG_SPI_SH_HSPI) += spi-sh-hspi.o obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o diff --git a/drivers/spi/spi-sh.c b/drivers/spi/spi-sh.c deleted file mode 100644 index 3e72fad99adfd4..00000000000000 --- a/drivers/spi/spi-sh.c +++ /dev/null @@ -1,474 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SH SPI bus driver - * - * Copyright (C) 2011 Renesas Solutions Corp. - * - * Based on pxa2xx_spi.c: - * Copyright (C) 2005 Stephen Street / StreetFire Sound Labs - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define SPI_SH_TBR 0x00 -#define SPI_SH_RBR 0x00 -#define SPI_SH_CR1 0x08 -#define SPI_SH_CR2 0x10 -#define SPI_SH_CR3 0x18 -#define SPI_SH_CR4 0x20 -#define SPI_SH_CR5 0x28 - -/* CR1 */ -#define SPI_SH_TBE 0x80 -#define SPI_SH_TBF 0x40 -#define SPI_SH_RBE 0x20 -#define SPI_SH_RBF 0x10 -#define SPI_SH_PFONRD 0x08 -#define SPI_SH_SSDB 0x04 -#define SPI_SH_SSD 0x02 -#define SPI_SH_SSA 0x01 - -/* CR2 */ -#define SPI_SH_RSTF 0x80 -#define SPI_SH_LOOPBK 0x40 -#define SPI_SH_CPOL 0x20 -#define SPI_SH_CPHA 0x10 -#define SPI_SH_L1M0 0x08 - -/* CR3 */ -#define SPI_SH_MAX_BYTE 0xFF - -/* CR4 */ -#define SPI_SH_TBEI 0x80 -#define SPI_SH_TBFI 0x40 -#define SPI_SH_RBEI 0x20 -#define SPI_SH_RBFI 0x10 -#define SPI_SH_WPABRT 0x04 -#define SPI_SH_SSS 0x01 - -/* CR8 */ -#define SPI_SH_P1L0 0x80 -#define SPI_SH_PP1L0 0x40 -#define SPI_SH_MUXI 0x20 -#define SPI_SH_MUXIRQ 0x10 - -#define SPI_SH_FIFO_SIZE 32 -#define SPI_SH_SEND_TIMEOUT (3 * HZ) -#define SPI_SH_RECEIVE_TIMEOUT (HZ >> 3) - -#undef DEBUG - -struct spi_sh_data { - void __iomem *addr; - int irq; - struct spi_master *master; - unsigned long cr1; - wait_queue_head_t wait; - int width; -}; - -static void spi_sh_write(struct spi_sh_data *ss, unsigned long data, - unsigned long offset) -{ - if (ss->width == 8) - iowrite8(data, ss->addr + (offset >> 2)); - else if (ss->width == 32) - iowrite32(data, ss->addr + offset); -} - -static unsigned long spi_sh_read(struct spi_sh_data *ss, unsigned long offset) -{ - if (ss->width == 8) - return ioread8(ss->addr + (offset >> 2)); - else if (ss->width == 32) - return ioread32(ss->addr + offset); - else - return 0; -} - -static void spi_sh_set_bit(struct spi_sh_data *ss, unsigned long val, - unsigned long offset) -{ - unsigned long tmp; - - tmp = spi_sh_read(ss, offset); - tmp |= val; - spi_sh_write(ss, tmp, offset); -} - -static void spi_sh_clear_bit(struct spi_sh_data *ss, unsigned long val, - unsigned long offset) -{ - unsigned long tmp; - - tmp = spi_sh_read(ss, offset); - tmp &= ~val; - spi_sh_write(ss, tmp, offset); -} - -static void clear_fifo(struct spi_sh_data *ss) -{ - spi_sh_set_bit(ss, SPI_SH_RSTF, SPI_SH_CR2); - spi_sh_clear_bit(ss, SPI_SH_RSTF, SPI_SH_CR2); -} - -static int spi_sh_wait_receive_buffer(struct spi_sh_data *ss) -{ - int timeout = 100000; - - while (spi_sh_read(ss, SPI_SH_CR1) & SPI_SH_RBE) { - udelay(10); - if (timeout-- < 0) - return -ETIMEDOUT; - } - return 0; -} - -static int spi_sh_wait_write_buffer_empty(struct spi_sh_data *ss) -{ - int timeout = 100000; - - while (!(spi_sh_read(ss, SPI_SH_CR1) & SPI_SH_TBE)) { - udelay(10); - if (timeout-- < 0) - return -ETIMEDOUT; - } - return 0; -} - -static int spi_sh_send(struct spi_sh_data *ss, struct spi_message *mesg, - struct spi_transfer *t) -{ - int i, retval = 0; - int remain = t->len; - int cur_len; - unsigned char *data; - long ret; - - if (t->len) - spi_sh_set_bit(ss, SPI_SH_SSA, SPI_SH_CR1); - - data = (unsigned char *)t->tx_buf; - while (remain > 0) { - cur_len = min(SPI_SH_FIFO_SIZE, remain); - for (i = 0; i < cur_len && - !(spi_sh_read(ss, SPI_SH_CR4) & - SPI_SH_WPABRT) && - !(spi_sh_read(ss, SPI_SH_CR1) & SPI_SH_TBF); - i++) - spi_sh_write(ss, (unsigned long)data[i], SPI_SH_TBR); - - if (spi_sh_read(ss, SPI_SH_CR4) & SPI_SH_WPABRT) { - /* Abort SPI operation */ - spi_sh_set_bit(ss, SPI_SH_WPABRT, SPI_SH_CR4); - retval = -EIO; - break; - } - - cur_len = i; - - remain -= cur_len; - data += cur_len; - - if (remain > 0) { - ss->cr1 &= ~SPI_SH_TBE; - spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4); - ret = wait_event_interruptible_timeout(ss->wait, - ss->cr1 & SPI_SH_TBE, - SPI_SH_SEND_TIMEOUT); - if (ret == 0 && !(ss->cr1 & SPI_SH_TBE)) { - printk(KERN_ERR "%s: timeout\n", __func__); - return -ETIMEDOUT; - } - } - } - - if (list_is_last(&t->transfer_list, &mesg->transfers)) { - spi_sh_clear_bit(ss, SPI_SH_SSD | SPI_SH_SSDB, SPI_SH_CR1); - spi_sh_set_bit(ss, SPI_SH_SSA, SPI_SH_CR1); - - ss->cr1 &= ~SPI_SH_TBE; - spi_sh_set_bit(ss, SPI_SH_TBE, SPI_SH_CR4); - ret = wait_event_interruptible_timeout(ss->wait, - ss->cr1 & SPI_SH_TBE, - SPI_SH_SEND_TIMEOUT); - if (ret == 0 && (ss->cr1 & SPI_SH_TBE)) { - printk(KERN_ERR "%s: timeout\n", __func__); - return -ETIMEDOUT; - } - } - - return retval; -} - -static int spi_sh_receive(struct spi_sh_data *ss, struct spi_message *mesg, - struct spi_transfer *t) -{ - int i; - int remain = t->len; - int cur_len; - unsigned char *data; - long ret; - - if (t->len > SPI_SH_MAX_BYTE) - spi_sh_write(ss, SPI_SH_MAX_BYTE, SPI_SH_CR3); - else - spi_sh_write(ss, t->len, SPI_SH_CR3); - - spi_sh_clear_bit(ss, SPI_SH_SSD | SPI_SH_SSDB, SPI_SH_CR1); - spi_sh_set_bit(ss, SPI_SH_SSA, SPI_SH_CR1); - - spi_sh_wait_write_buffer_empty(ss); - - data = (unsigned char *)t->rx_buf; - while (remain > 0) { - if (remain >= SPI_SH_FIFO_SIZE) { - ss->cr1 &= ~SPI_SH_RBF; - spi_sh_set_bit(ss, SPI_SH_RBF, SPI_SH_CR4); - ret = wait_event_interruptible_timeout(ss->wait, - ss->cr1 & SPI_SH_RBF, - SPI_SH_RECEIVE_TIMEOUT); - if (ret == 0 && - spi_sh_read(ss, SPI_SH_CR1) & SPI_SH_RBE) { - printk(KERN_ERR "%s: timeout\n", __func__); - return -ETIMEDOUT; - } - } - - cur_len = min(SPI_SH_FIFO_SIZE, remain); - for (i = 0; i < cur_len; i++) { - if (spi_sh_wait_receive_buffer(ss)) - break; - data[i] = (unsigned char)spi_sh_read(ss, SPI_SH_RBR); - } - - remain -= cur_len; - data += cur_len; - } - - /* deassert CS when SPI is receiving. */ - if (t->len > SPI_SH_MAX_BYTE) { - clear_fifo(ss); - spi_sh_write(ss, 1, SPI_SH_CR3); - } else { - spi_sh_write(ss, 0, SPI_SH_CR3); - } - - return 0; -} - -static int spi_sh_transfer_one_message(struct spi_controller *ctlr, - struct spi_message *mesg) -{ - struct spi_sh_data *ss = spi_controller_get_devdata(ctlr); - struct spi_transfer *t; - int ret; - - pr_debug("%s: enter\n", __func__); - - spi_sh_clear_bit(ss, SPI_SH_SSA, SPI_SH_CR1); - - list_for_each_entry(t, &mesg->transfers, transfer_list) { - pr_debug("tx_buf = %p, rx_buf = %p\n", - t->tx_buf, t->rx_buf); - pr_debug("len = %d, delay.value = %d\n", - t->len, t->delay.value); - - if (t->tx_buf) { - ret = spi_sh_send(ss, mesg, t); - if (ret < 0) - goto error; - } - if (t->rx_buf) { - ret = spi_sh_receive(ss, mesg, t); - if (ret < 0) - goto error; - } - mesg->actual_length += t->len; - } - - mesg->status = 0; - spi_finalize_current_message(ctlr); - - clear_fifo(ss); - spi_sh_set_bit(ss, SPI_SH_SSD, SPI_SH_CR1); - udelay(100); - - spi_sh_clear_bit(ss, SPI_SH_SSA | SPI_SH_SSDB | SPI_SH_SSD, - SPI_SH_CR1); - - clear_fifo(ss); - - return 0; - - error: - mesg->status = ret; - spi_finalize_current_message(ctlr); - if (mesg->complete) - mesg->complete(mesg->context); - - spi_sh_clear_bit(ss, SPI_SH_SSA | SPI_SH_SSDB | SPI_SH_SSD, - SPI_SH_CR1); - clear_fifo(ss); - - return ret; -} - -static int spi_sh_setup(struct spi_device *spi) -{ - struct spi_sh_data *ss = spi_master_get_devdata(spi->master); - - pr_debug("%s: enter\n", __func__); - - spi_sh_write(ss, 0xfe, SPI_SH_CR1); /* SPI sycle stop */ - spi_sh_write(ss, 0x00, SPI_SH_CR1); /* CR1 init */ - spi_sh_write(ss, 0x00, SPI_SH_CR3); /* CR3 init */ - - clear_fifo(ss); - - /* 1/8 clock */ - spi_sh_write(ss, spi_sh_read(ss, SPI_SH_CR2) | 0x07, SPI_SH_CR2); - udelay(10); - - return 0; -} - -static void spi_sh_cleanup(struct spi_device *spi) -{ - struct spi_sh_data *ss = spi_master_get_devdata(spi->master); - - pr_debug("%s: enter\n", __func__); - - spi_sh_clear_bit(ss, SPI_SH_SSA | SPI_SH_SSDB | SPI_SH_SSD, - SPI_SH_CR1); -} - -static irqreturn_t spi_sh_irq(int irq, void *_ss) -{ - struct spi_sh_data *ss = (struct spi_sh_data *)_ss; - unsigned long cr1; - - cr1 = spi_sh_read(ss, SPI_SH_CR1); - if (cr1 & SPI_SH_TBE) - ss->cr1 |= SPI_SH_TBE; - if (cr1 & SPI_SH_TBF) - ss->cr1 |= SPI_SH_TBF; - if (cr1 & SPI_SH_RBE) - ss->cr1 |= SPI_SH_RBE; - if (cr1 & SPI_SH_RBF) - ss->cr1 |= SPI_SH_RBF; - - if (ss->cr1) { - spi_sh_clear_bit(ss, ss->cr1, SPI_SH_CR4); - wake_up(&ss->wait); - } - - return IRQ_HANDLED; -} - -static int spi_sh_remove(struct platform_device *pdev) -{ - struct spi_sh_data *ss = platform_get_drvdata(pdev); - - spi_unregister_master(ss->master); - free_irq(ss->irq, ss); - - return 0; -} - -static int spi_sh_probe(struct platform_device *pdev) -{ - struct resource *res; - struct spi_master *master; - struct spi_sh_data *ss; - int ret, irq; - - /* get base addr */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (unlikely(res == NULL)) { - dev_err(&pdev->dev, "invalid resource\n"); - return -EINVAL; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return irq; - - master = devm_spi_alloc_master(&pdev->dev, sizeof(struct spi_sh_data)); - if (master == NULL) { - dev_err(&pdev->dev, "spi_alloc_master error.\n"); - return -ENOMEM; - } - - ss = spi_master_get_devdata(master); - platform_set_drvdata(pdev, ss); - - switch (res->flags & IORESOURCE_MEM_TYPE_MASK) { - case IORESOURCE_MEM_8BIT: - ss->width = 8; - break; - case IORESOURCE_MEM_32BIT: - ss->width = 32; - break; - default: - dev_err(&pdev->dev, "No support width\n"); - return -ENODEV; - } - ss->irq = irq; - ss->master = master; - ss->addr = devm_ioremap(&pdev->dev, res->start, resource_size(res)); - if (ss->addr == NULL) { - dev_err(&pdev->dev, "ioremap error.\n"); - return -ENOMEM; - } - init_waitqueue_head(&ss->wait); - - ret = request_irq(irq, spi_sh_irq, 0, "spi_sh", ss); - if (ret < 0) { - dev_err(&pdev->dev, "request_irq error\n"); - return ret; - } - - master->num_chipselect = 2; - master->bus_num = pdev->id; - master->setup = spi_sh_setup; - master->transfer_one_message = spi_sh_transfer_one_message; - master->cleanup = spi_sh_cleanup; - - ret = spi_register_master(master); - if (ret < 0) { - printk(KERN_ERR "spi_register_master error.\n"); - goto error3; - } - - return 0; - - error3: - free_irq(irq, ss); - return ret; -} - -static struct platform_driver spi_sh_driver = { - .probe = spi_sh_probe, - .remove = spi_sh_remove, - .driver = { - .name = "sh_spi", - }, -}; -module_platform_driver(spi_sh_driver); - -MODULE_DESCRIPTION("SH SPI bus driver"); -MODULE_LICENSE("GPL v2"); -MODULE_AUTHOR("Yoshihiro Shimoda"); -MODULE_ALIAS("platform:sh_spi"); From patchwork Fri Jan 13 06:23:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642578 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0973AC54EBE for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUW-000lwz-NO; Fri, 13 Jan 2023 06:24:41 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 16/22] spi: remove spi-sh-sci Date: Fri, 13 Jan 2023 07:23:33 +0100 Message-Id: <20230113062339.1909087-17-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/spi/Kconfig | 7 -- drivers/spi/Makefile | 1 - drivers/spi/spi-sh-sci.c | 197 --------------------------------------- 3 files changed, 205 deletions(-) delete mode 100644 drivers/spi/spi-sh-sci.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 7508dcef909c78..76f3bc6f8c81fc 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -882,13 +882,6 @@ config SPI_SH_MSIOF help SPI driver for SuperH and SH Mobile MSIOF blocks. -config SPI_SH_SCI - tristate "SuperH SCI SPI controller" - depends on SUPERH - select SPI_BITBANG - help - SPI driver for SuperH SCI blocks. - config SPI_SH_HSPI tristate "SuperH HSPI controller" depends on ARCH_RENESAS || COMPILE_TEST diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 342a7eb5181c9b..27d877440c6539 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -118,7 +118,6 @@ obj-$(CONFIG_SPI_S3C64XX) += spi-s3c64xx.o obj-$(CONFIG_SPI_SC18IS602) += spi-sc18is602.o obj-$(CONFIG_SPI_SH_HSPI) += spi-sh-hspi.o obj-$(CONFIG_SPI_SH_MSIOF) += spi-sh-msiof.o -obj-$(CONFIG_SPI_SH_SCI) += spi-sh-sci.o obj-$(CONFIG_SPI_SIFIVE) += spi-sifive.o obj-$(CONFIG_SPI_SLAVE_MT27XX) += spi-slave-mt27xx.o obj-$(CONFIG_SPI_SN_F_OSPI) += spi-sn-f-ospi.o diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c deleted file mode 100644 index 8f30531e141867..00000000000000 --- a/drivers/spi/spi-sh-sci.c +++ /dev/null @@ -1,197 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * SH SCI SPI interface - * - * Copyright (c) 2008 Magnus Damm - * - * Based on S3C24XX GPIO based SPI driver, which is: - * Copyright (c) 2006 Ben Dooks - * Copyright (c) 2006 Simtec Electronics - */ - -#include -#include -#include -#include - -#include -#include -#include - -#include -#include - -struct sh_sci_spi { - struct spi_bitbang bitbang; - - void __iomem *membase; - unsigned char val; - struct sh_spi_info *info; - struct platform_device *dev; -}; - -#define SCSPTR(sp) (sp->membase + 0x1c) -#define PIN_SCK (1 << 2) -#define PIN_TXD (1 << 0) -#define PIN_RXD PIN_TXD -#define PIN_INIT ((1 << 1) | (1 << 3) | PIN_SCK | PIN_TXD) - -static inline void setbits(struct sh_sci_spi *sp, int bits, int on) -{ - /* - * We are the only user of SCSPTR so no locking is required. - * Reading bit 2 and 0 in SCSPTR gives pin state as input. - * Writing the same bits sets the output value. - * This makes regular read-modify-write difficult so we - * use sp->val to keep track of the latest register value. - */ - - if (on) - sp->val |= bits; - else - sp->val &= ~bits; - - iowrite8(sp->val, SCSPTR(sp)); -} - -static inline void setsck(struct spi_device *dev, int on) -{ - setbits(spi_master_get_devdata(dev->master), PIN_SCK, on); -} - -static inline void setmosi(struct spi_device *dev, int on) -{ - setbits(spi_master_get_devdata(dev->master), PIN_TXD, on); -} - -static inline u32 getmiso(struct spi_device *dev) -{ - struct sh_sci_spi *sp = spi_master_get_devdata(dev->master); - - return (ioread8(SCSPTR(sp)) & PIN_RXD) ? 1 : 0; -} - -#define spidelay(x) ndelay(x) - -#include "spi-bitbang-txrx.h" - -static u32 sh_sci_spi_txrx_mode0(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 0, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode1(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 0, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode2(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha0(spi, nsecs, 1, flags, word, bits); -} - -static u32 sh_sci_spi_txrx_mode3(struct spi_device *spi, - unsigned nsecs, u32 word, u8 bits, - unsigned flags) -{ - return bitbang_txrx_be_cpha1(spi, nsecs, 1, flags, word, bits); -} - -static void sh_sci_spi_chipselect(struct spi_device *dev, int value) -{ - struct sh_sci_spi *sp = spi_master_get_devdata(dev->master); - - if (sp->info->chip_select) - (sp->info->chip_select)(sp->info, dev->chip_select, value); -} - -static int sh_sci_spi_probe(struct platform_device *dev) -{ - struct resource *r; - struct spi_master *master; - struct sh_sci_spi *sp; - int ret; - - master = spi_alloc_master(&dev->dev, sizeof(struct sh_sci_spi)); - if (master == NULL) { - dev_err(&dev->dev, "failed to allocate spi master\n"); - ret = -ENOMEM; - goto err0; - } - - sp = spi_master_get_devdata(master); - - platform_set_drvdata(dev, sp); - sp->info = dev_get_platdata(&dev->dev); - if (!sp->info) { - dev_err(&dev->dev, "platform data is missing\n"); - ret = -ENOENT; - goto err1; - } - - /* setup spi bitbang adaptor */ - sp->bitbang.master = master; - sp->bitbang.master->bus_num = sp->info->bus_num; - sp->bitbang.master->num_chipselect = sp->info->num_chipselect; - sp->bitbang.chipselect = sh_sci_spi_chipselect; - - sp->bitbang.txrx_word[SPI_MODE_0] = sh_sci_spi_txrx_mode0; - sp->bitbang.txrx_word[SPI_MODE_1] = sh_sci_spi_txrx_mode1; - sp->bitbang.txrx_word[SPI_MODE_2] = sh_sci_spi_txrx_mode2; - sp->bitbang.txrx_word[SPI_MODE_3] = sh_sci_spi_txrx_mode3; - - r = platform_get_resource(dev, IORESOURCE_MEM, 0); - if (r == NULL) { - ret = -ENOENT; - goto err1; - } - sp->membase = ioremap(r->start, resource_size(r)); - if (!sp->membase) { - ret = -ENXIO; - goto err1; - } - sp->val = ioread8(SCSPTR(sp)); - setbits(sp, PIN_INIT, 1); - - ret = spi_bitbang_start(&sp->bitbang); - if (!ret) - return 0; - - setbits(sp, PIN_INIT, 0); - iounmap(sp->membase); - err1: - spi_master_put(sp->bitbang.master); - err0: - return ret; -} - -static int sh_sci_spi_remove(struct platform_device *dev) -{ - struct sh_sci_spi *sp = platform_get_drvdata(dev); - - spi_bitbang_stop(&sp->bitbang); - setbits(sp, PIN_INIT, 0); - iounmap(sp->membase); - spi_master_put(sp->bitbang.master); - return 0; -} - -static struct platform_driver sh_sci_spi_drv = { - .probe = sh_sci_spi_probe, - .remove = sh_sci_spi_remove, - .driver = { - .name = "spi_sh_sci", - }, -}; -module_platform_driver(sh_sci_spi_drv); - -MODULE_DESCRIPTION("SH SCI SPI Driver"); -MODULE_AUTHOR("Magnus Damm "); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:spi_sh_sci"); From patchwork Fri Jan 13 06:23:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642577 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 64FA7C71136 for ; Fri, 13 Jan 2023 06:29:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241098AbjAMG2u (ORCPT ); Fri, 13 Jan 2023 01:28:50 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37566 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240753AbjAMG0t (ORCPT ); Fri, 13 Jan 2023 01:26:49 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 873DE5BA14; Thu, 12 Jan 2023 22:24:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=iukbm4IkjfomIK3EfPQb3pM2uZtgleJjPX7CiCdGPsw=; b=bctQ26YIIgDNETWqWEH1faeoiC 5ktgEfTapXGrurmR9U4e7rnZhY6Cwur/HNcTFDEguI7nrrjhQMk5LJZRnXQk/Lh/SgAsj5oUR1cNC 6SWrceAqwQKLhXM4b9+5hQvSpMqgJj6Fi1i/TaketNXyVfW/AwoYVQnx70z7dzq4fJub9GsHbuyZ5 HDmhDiNuu8m8OdZDuEJyIrydgrmSdNheR0U9+6Rotsg72jUQftqVDSCn6tM1GTULxOLQT60TelhnY qeYO2LcPFeCb7ZL/Bxwy4AWEhdIRBjlajWtTjxyUMXW5KzAfXsUm2V07QOaprHacrHX0gFnJIBipd ZAhGSquQ==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUZ-000lye-Sk; Fri, 13 Jan 2023 06:24:44 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 17/22] spi: remove spi-jcore Date: Fri, 13 Jan 2023 07:23:34 +0100 Message-Id: <20230113062339.1909087-18-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/spi/Kconfig | 7 -- drivers/spi/Makefile | 1 - drivers/spi/spi-jcore.c | 235 ---------------------------------------- 3 files changed, 243 deletions(-) delete mode 100644 drivers/spi/spi-jcore.c diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 76f3bc6f8c81fc..17c75f5c19be75 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -483,13 +483,6 @@ config SPI_INTEL_PLATFORM To compile this driver as a module, choose M here: the module will be called spi-intel-platform. -config SPI_JCORE - tristate "J-Core SPI Master" - depends on OF && (SUPERH || COMPILE_TEST) - help - This enables support for the SPI master controller in the J-Core - synthesizable, open source SoC. - config SPI_LM70_LLP tristate "Parallel port adapter for LM70 eval board (DEVELOPMENT)" depends on PARPORT diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 27d877440c6539..2d03fcefc11ea2 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -67,7 +67,6 @@ obj-$(CONFIG_SPI_INTEL) += spi-intel.o obj-$(CONFIG_SPI_INTEL_PCI) += spi-intel-pci.o obj-$(CONFIG_SPI_INTEL_PLATFORM) += spi-intel-platform.o obj-$(CONFIG_SPI_LANTIQ_SSC) += spi-lantiq-ssc.o -obj-$(CONFIG_SPI_JCORE) += spi-jcore.o obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o obj-$(CONFIG_SPI_LP8841_RTC) += spi-lp8841-rtc.o obj-$(CONFIG_SPI_MESON_SPICC) += spi-meson-spicc.o diff --git a/drivers/spi/spi-jcore.c b/drivers/spi/spi-jcore.c deleted file mode 100644 index 74c8319c29f170..00000000000000 --- a/drivers/spi/spi-jcore.c +++ /dev/null @@ -1,235 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * J-Core SPI controller driver - * - * Copyright (C) 2012-2016 Smart Energy Instruments, Inc. - * - * Current version by Rich Felker - * Based loosely on initial version by Oleksandr G Zhadan - * - */ -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define DRV_NAME "jcore_spi" - -#define CTRL_REG 0x0 -#define DATA_REG 0x4 - -#define JCORE_SPI_CTRL_XMIT 0x02 -#define JCORE_SPI_STAT_BUSY 0x02 -#define JCORE_SPI_CTRL_LOOP 0x08 -#define JCORE_SPI_CTRL_CS_BITS 0x15 - -#define JCORE_SPI_WAIT_RDY_MAX_LOOP 2000000 - -struct jcore_spi { - struct spi_master *master; - void __iomem *base; - unsigned int cs_reg; - unsigned int speed_reg; - unsigned int speed_hz; - unsigned int clock_freq; -}; - -static int jcore_spi_wait(void __iomem *ctrl_reg) -{ - unsigned timeout = JCORE_SPI_WAIT_RDY_MAX_LOOP; - - do { - if (!(readl(ctrl_reg) & JCORE_SPI_STAT_BUSY)) - return 0; - cpu_relax(); - } while (--timeout); - - return -EBUSY; -} - -static void jcore_spi_program(struct jcore_spi *hw) -{ - void __iomem *ctrl_reg = hw->base + CTRL_REG; - - if (jcore_spi_wait(ctrl_reg)) - dev_err(hw->master->dev.parent, - "timeout waiting to program ctrl reg.\n"); - - writel(hw->cs_reg | hw->speed_reg, ctrl_reg); -} - -static void jcore_spi_chipsel(struct spi_device *spi, bool value) -{ - struct jcore_spi *hw = spi_master_get_devdata(spi->master); - u32 csbit = 1U << (2 * spi->chip_select); - - dev_dbg(hw->master->dev.parent, "chipselect %d\n", spi->chip_select); - - if (value) - hw->cs_reg |= csbit; - else - hw->cs_reg &= ~csbit; - - jcore_spi_program(hw); -} - -static void jcore_spi_baudrate(struct jcore_spi *hw, int speed) -{ - if (speed == hw->speed_hz) - return; - hw->speed_hz = speed; - if (speed >= hw->clock_freq / 2) - hw->speed_reg = 0; - else - hw->speed_reg = ((hw->clock_freq / 2 / speed) - 1) << 27; - jcore_spi_program(hw); - dev_dbg(hw->master->dev.parent, "speed=%d reg=0x%x\n", - speed, hw->speed_reg); -} - -static int jcore_spi_txrx(struct spi_master *master, struct spi_device *spi, - struct spi_transfer *t) -{ - struct jcore_spi *hw = spi_master_get_devdata(master); - - void __iomem *ctrl_reg = hw->base + CTRL_REG; - void __iomem *data_reg = hw->base + DATA_REG; - u32 xmit; - - /* data buffers */ - const unsigned char *tx; - unsigned char *rx; - unsigned int len; - unsigned int count; - - jcore_spi_baudrate(hw, t->speed_hz); - - xmit = hw->cs_reg | hw->speed_reg | JCORE_SPI_CTRL_XMIT; - tx = t->tx_buf; - rx = t->rx_buf; - len = t->len; - - for (count = 0; count < len; count++) { - if (jcore_spi_wait(ctrl_reg)) - break; - - writel(tx ? *tx++ : 0, data_reg); - writel(xmit, ctrl_reg); - - if (jcore_spi_wait(ctrl_reg)) - break; - - if (rx) - *rx++ = readl(data_reg); - } - - spi_finalize_current_transfer(master); - - if (count < len) - return -EREMOTEIO; - - return 0; -} - -static int jcore_spi_probe(struct platform_device *pdev) -{ - struct device_node *node = pdev->dev.of_node; - struct jcore_spi *hw; - struct spi_master *master; - struct resource *res; - u32 clock_freq; - struct clk *clk; - int err = -ENODEV; - - master = spi_alloc_master(&pdev->dev, sizeof(struct jcore_spi)); - if (!master) - return err; - - /* Setup the master state. */ - master->num_chipselect = 3; - master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH; - master->transfer_one = jcore_spi_txrx; - master->set_cs = jcore_spi_chipsel; - master->dev.of_node = node; - master->bus_num = pdev->id; - - hw = spi_master_get_devdata(master); - hw->master = master; - platform_set_drvdata(pdev, hw); - - /* Find and map our resources */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - goto exit_busy; - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), pdev->name)) - goto exit_busy; - hw->base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!hw->base) - goto exit_busy; - - /* - * The SPI clock rate controlled via a configurable clock divider - * which is applied to the reference clock. A 50 MHz reference is - * most suitable for obtaining standard SPI clock rates, but some - * designs may have a different reference clock, and the DT must - * make the driver aware so that it can properly program the - * requested rate. If the clock is omitted, 50 MHz is assumed. - */ - clock_freq = 50000000; - clk = devm_clk_get(&pdev->dev, "ref_clk"); - if (!IS_ERR(clk)) { - if (clk_prepare_enable(clk) == 0) { - clock_freq = clk_get_rate(clk); - clk_disable_unprepare(clk); - } else - dev_warn(&pdev->dev, "could not enable ref_clk\n"); - } - hw->clock_freq = clock_freq; - - /* Initialize all CS bits to high. */ - hw->cs_reg = JCORE_SPI_CTRL_CS_BITS; - jcore_spi_baudrate(hw, 400000); - - /* Register our spi controller */ - err = devm_spi_register_master(&pdev->dev, master); - if (err) - goto exit; - - return 0; - -exit_busy: - err = -EBUSY; -exit: - spi_master_put(master); - return err; -} - -static const struct of_device_id jcore_spi_of_match[] = { - { .compatible = "jcore,spi2" }, - {}, -}; -MODULE_DEVICE_TABLE(of, jcore_spi_of_match); - -static struct platform_driver jcore_spi_driver = { - .probe = jcore_spi_probe, - .driver = { - .name = DRV_NAME, - .of_match_table = jcore_spi_of_match, - }, -}; - -module_platform_driver(jcore_spi_driver); - -MODULE_DESCRIPTION("J-Core SPI driver"); -MODULE_AUTHOR("Rich Felker "); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:" DRV_NAME); From patchwork Fri Jan 13 06:23:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643096 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6254FC61DB3 for ; Fri, 13 Jan 2023 06:29:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241191AbjAMG3P (ORCPT ); Fri, 13 Jan 2023 01:29:15 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240759AbjAMG0u (ORCPT ); Fri, 13 Jan 2023 01:26:50 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EF2B55BA16; Thu, 12 Jan 2023 22:24:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=UA3Wx2g8+e+Fb1QaXEWK5OP24rFFtFCQfYxWGC/7x1s=; b=NgPhSrF34f2zcVzS0tgAL6SgbE zRtNJPHFDmvbOdI3GA8GgIGbclB1ExF6UYx3/DOow16PdNqNFgArlB6/7DeVG8QXv9klWNTE8z76X RxDxcxbzx1a5/02Maj5eBCzCASpahQtLWA2keIRijYtli8Z/MLfSY9hHS0VU+LPEPmMxQpGIWA7ec 3SfxmuGWVMyYB1NxTK6cbQ94YpmydUsc9sm9uGHn71o4BEIUZobj8AWNqdv6668P1fZZLhJM/SiY9 6mtAfE5wns/6VQmwdJIZFuUB6Mw5tHauSYYU3JYD4h2ywkt/BsuHr9keJXWSSnIiIpSqtpoa6ATWh Wd4bfZDA==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUc-000m1U-Nf; Fri, 13 Jan 2023 06:24:47 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 18/22] usb: remove ehci-sh Date: Fri, 13 Jan 2023 07:23:35 +0100 Message-Id: <20230113062339.1909087-19-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/usb/host/Kconfig | 7 -- drivers/usb/host/ehci-hcd.c | 7 -- drivers/usb/host/ehci-sh.c | 182 ------------------------------------ 3 files changed, 196 deletions(-) delete mode 100644 drivers/usb/host/ehci-sh.c diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index ca5f657c092cf4..ddd8b798626caf 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -279,13 +279,6 @@ config USB_EHCI_HCD_PPC_OF Enables support for the USB controller present on the PowerPC OpenFirmware platform bus. -config USB_EHCI_SH - bool "EHCI support for SuperH USB controller" - depends on SUPERH || COMPILE_TEST - help - Enables support for the on-chip EHCI controller on the SuperH. - If you use the PCI EHCI controller, this option is not necessary. - config USB_EHCI_EXYNOS tristate "EHCI support for Samsung S5P/Exynos SoC Series" depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index a1930db0da1c3c..e6dfef3492aabe 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1309,10 +1309,6 @@ MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR (DRIVER_AUTHOR); MODULE_LICENSE ("GPL"); -#ifdef CONFIG_USB_EHCI_SH -#include "ehci-sh.c" -#endif - #ifdef CONFIG_PPC_PS3 #include "ehci-ps3.c" #endif @@ -1330,9 +1326,6 @@ MODULE_LICENSE ("GPL"); #endif static struct platform_driver * const platform_drivers[] = { -#ifdef CONFIG_USB_EHCI_SH - &ehci_hcd_sh_driver, -#endif #ifdef CONFIG_USB_EHCI_HCD_PPC_OF &ehci_hcd_ppc_of_driver, #endif diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c deleted file mode 100644 index c25c51d26f2603..00000000000000 --- a/drivers/usb/host/ehci-sh.c +++ /dev/null @@ -1,182 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SuperH EHCI host controller driver - * - * Copyright (C) 2010 Paul Mundt - * - * Based on ohci-sh.c and ehci-atmel.c. - */ -#include -#include - -struct ehci_sh_priv { - struct clk *iclk, *fclk; - struct usb_hcd *hcd; -}; - -static int ehci_sh_reset(struct usb_hcd *hcd) -{ - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - - ehci->caps = hcd->regs; - - return ehci_setup(hcd); -} - -static const struct hc_driver ehci_sh_hc_driver = { - .description = hcd_name, - .product_desc = "SuperH EHCI", - .hcd_priv_size = sizeof(struct ehci_hcd), - - /* - * generic hardware linkage - */ - .irq = ehci_irq, - .flags = HCD_USB2 | HCD_DMA | HCD_MEMORY | HCD_BH, - - /* - * basic lifecycle operations - */ - .reset = ehci_sh_reset, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - /* - * managing i/o requests and associated device resources - */ - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, - - /* - * scheduling support - */ - .get_frame_number = ehci_get_frame, - - /* - * root hub support - */ - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, - -#ifdef CONFIG_PM - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, -#endif - - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static int ehci_hcd_sh_probe(struct platform_device *pdev) -{ - struct resource *res; - struct ehci_sh_priv *priv; - struct usb_hcd *hcd; - int irq, ret; - - if (usb_disabled()) - return -ENODEV; - - irq = platform_get_irq(pdev, 0); - if (irq <= 0) { - ret = -ENODEV; - goto fail_create_hcd; - } - - /* initialize hcd */ - hcd = usb_create_hcd(&ehci_sh_hc_driver, &pdev->dev, - dev_name(&pdev->dev)); - if (!hcd) { - ret = -ENOMEM; - goto fail_create_hcd; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - hcd->regs = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(hcd->regs)) { - ret = PTR_ERR(hcd->regs); - goto fail_request_resource; - } - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - - priv = devm_kzalloc(&pdev->dev, sizeof(struct ehci_sh_priv), - GFP_KERNEL); - if (!priv) { - ret = -ENOMEM; - goto fail_request_resource; - } - - /* These are optional, we don't care if they fail */ - priv->fclk = devm_clk_get(&pdev->dev, "usb_fck"); - if (IS_ERR(priv->fclk)) - priv->fclk = NULL; - - priv->iclk = devm_clk_get(&pdev->dev, "usb_ick"); - if (IS_ERR(priv->iclk)) - priv->iclk = NULL; - - clk_enable(priv->fclk); - clk_enable(priv->iclk); - - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (ret != 0) { - dev_err(&pdev->dev, "Failed to add hcd"); - goto fail_add_hcd; - } - device_wakeup_enable(hcd->self.controller); - - priv->hcd = hcd; - platform_set_drvdata(pdev, priv); - - return ret; - -fail_add_hcd: - clk_disable(priv->iclk); - clk_disable(priv->fclk); - -fail_request_resource: - usb_put_hcd(hcd); -fail_create_hcd: - dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), ret); - - return ret; -} - -static int ehci_hcd_sh_remove(struct platform_device *pdev) -{ - struct ehci_sh_priv *priv = platform_get_drvdata(pdev); - struct usb_hcd *hcd = priv->hcd; - - usb_remove_hcd(hcd); - usb_put_hcd(hcd); - - clk_disable(priv->fclk); - clk_disable(priv->iclk); - - return 0; -} - -static void ehci_hcd_sh_shutdown(struct platform_device *pdev) -{ - struct ehci_sh_priv *priv = platform_get_drvdata(pdev); - struct usb_hcd *hcd = priv->hcd; - - if (hcd->driver->shutdown) - hcd->driver->shutdown(hcd); -} - -static struct platform_driver ehci_hcd_sh_driver = { - .probe = ehci_hcd_sh_probe, - .remove = ehci_hcd_sh_remove, - .shutdown = ehci_hcd_sh_shutdown, - .driver = { - .name = "sh_ehci", - }, -}; - -MODULE_ALIAS("platform:sh_ehci"); From patchwork Fri Jan 13 06:23:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642575 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7664C678DA for ; Fri, 13 Jan 2023 06:29:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241208AbjAMG3T (ORCPT ); Fri, 13 Jan 2023 01:29:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240774AbjAMG0x (ORCPT ); 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Fri, 13 Jan 2023 06:24:49 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 19/22] fbdev: remove sh7760fb Date: Fri, 13 Jan 2023 07:23:36 +0100 Message-Id: <20230113062339.1909087-20-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/video/fbdev/Kconfig | 17 +- drivers/video/fbdev/Makefile | 1 - drivers/video/fbdev/sh7760fb.c | 587 --------------------------------- 3 files changed, 1 insertion(+), 604 deletions(-) delete mode 100644 drivers/video/fbdev/sh7760fb.c diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index b2bed599e6c6ea..cba0ba512a6ddb 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1861,7 +1861,7 @@ config FB_W100 config FB_SH_MOBILE_LCDC tristate "SuperH Mobile LCDC framebuffer support" depends on FB && HAVE_CLK && HAS_IOMEM - depends on SUPERH || ARCH_RENESAS || COMPILE_TEST + depends on ARCH_RENESAS || COMPILE_TEST select FB_SYS_FILLRECT select FB_SYS_COPYAREA select FB_SYS_IMAGEBLIT @@ -2048,21 +2048,6 @@ config FB_COBALT tristate "Cobalt server LCD frame buffer support" depends on FB && MIPS_COBALT -config FB_SH7760 - bool "SH7760/SH7763/SH7720/SH7721 LCDC support" - depends on FB && (CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7763 \ - || CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721) - select FB_CFB_FILLRECT - select FB_CFB_COPYAREA - select FB_CFB_IMAGEBLIT - help - Support for the SH7760/SH7763/SH7720/SH7721 integrated - (D)STN/TFT LCD Controller. - Supports display resolutions up to 1024x1024 pixel, grayscale and - color operation, with depths ranging from 1 bpp to 8 bpp monochrome - and 8, 15 or 16 bpp color; 90 degrees clockwise display rotation for - panels <= 320 pixel horizontal resolution. - config FB_DA8XX tristate "DA8xx/OMAP-L1xx/AM335x Framebuffer support" depends on FB && HAVE_CLK && HAS_IOMEM diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile index 7795c4126706fd..9941a30522b4b3 100644 --- a/drivers/video/fbdev/Makefile +++ b/drivers/video/fbdev/Makefile @@ -97,7 +97,6 @@ obj-$(CONFIG_FB_MAXINE) += maxinefb.o obj-$(CONFIG_FB_METRONOME) += metronomefb.o obj-$(CONFIG_FB_BROADSHEET) += broadsheetfb.o obj-$(CONFIG_FB_S1D13XXX) += s1d13xxxfb.o -obj-$(CONFIG_FB_SH7760) += sh7760fb.o obj-$(CONFIG_FB_IMX) += imxfb.o obj-$(CONFIG_FB_S3C) += s3c-fb.o obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o diff --git a/drivers/video/fbdev/sh7760fb.c b/drivers/video/fbdev/sh7760fb.c deleted file mode 100644 index 5978a892123226..00000000000000 --- a/drivers/video/fbdev/sh7760fb.c +++ /dev/null @@ -1,587 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SH7760/SH7763 LCDC Framebuffer driver. - * - * (c) 2006-2008 MSC Vertriebsges.m.b.H., - * Manuel Lauss - * (c) 2008 Nobuhiro Iwamatsu - * - * PLEASE HAVE A LOOK AT Documentation/fb/sh7760fb.rst! - * - * Thanks to Siegfried Schaefer - * for his original source and testing! - * - * sh7760_setcolreg get from drivers/video/sh_mobile_lcdcfb.c - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -struct sh7760fb_par { - void __iomem *base; - int irq; - - struct sh7760fb_platdata *pd; /* display information */ - - dma_addr_t fbdma; /* physical address */ - - int rot; /* rotation enabled? */ - - u32 pseudo_palette[16]; - - struct platform_device *dev; - struct resource *ioarea; - struct completion vsync; /* vsync irq event */ -}; - -static irqreturn_t sh7760fb_irq(int irq, void *data) -{ - struct completion *c = data; - - complete(c); - - return IRQ_HANDLED; -} - -/* wait_for_lps - wait until power supply has reached a certain state. */ -static int wait_for_lps(struct sh7760fb_par *par, int val) -{ - int i = 100; - while (--i && ((ioread16(par->base + LDPMMR) & 3) != val)) - msleep(1); - - if (i <= 0) - return -ETIMEDOUT; - - return 0; -} - -/* en/disable the LCDC */ -static int sh7760fb_blank(int blank, struct fb_info *info) -{ - struct sh7760fb_par *par = info->par; - struct sh7760fb_platdata *pd = par->pd; - unsigned short cntr = ioread16(par->base + LDCNTR); - unsigned short intr = ioread16(par->base + LDINTR); - int lps; - - if (blank == FB_BLANK_UNBLANK) { - intr |= VINT_START; - cntr = LDCNTR_DON2 | LDCNTR_DON; - lps = 3; - } else { - intr &= ~VINT_START; - cntr = LDCNTR_DON2; - lps = 0; - } - - if (pd->blank) - pd->blank(blank); - - iowrite16(intr, par->base + LDINTR); - iowrite16(cntr, par->base + LDCNTR); - - return wait_for_lps(par, lps); -} - -static int sh7760_setcolreg (u_int regno, - u_int red, u_int green, u_int blue, - u_int transp, struct fb_info *info) -{ - u32 *palette = info->pseudo_palette; - - if (regno >= 16) - return -EINVAL; - - /* only FB_VISUAL_TRUECOLOR supported */ - - red >>= 16 - info->var.red.length; - green >>= 16 - info->var.green.length; - blue >>= 16 - info->var.blue.length; - transp >>= 16 - info->var.transp.length; - - palette[regno] = (red << info->var.red.offset) | - (green << info->var.green.offset) | - (blue << info->var.blue.offset) | - (transp << info->var.transp.offset); - - return 0; -} - -static int sh7760fb_get_color_info(struct device *dev, - u16 lddfr, int *bpp, int *gray) -{ - int lbpp, lgray; - - lgray = lbpp = 0; - - switch (lddfr & LDDFR_COLOR_MASK) { - case LDDFR_1BPP_MONO: - lgray = 1; - lbpp = 1; - break; - case LDDFR_2BPP_MONO: - lgray = 1; - lbpp = 2; - break; - case LDDFR_4BPP_MONO: - lgray = 1; - case LDDFR_4BPP: - lbpp = 4; - break; - case LDDFR_6BPP_MONO: - lgray = 1; - case LDDFR_8BPP: - lbpp = 8; - break; - case LDDFR_16BPP_RGB555: - case LDDFR_16BPP_RGB565: - lbpp = 16; - lgray = 0; - break; - default: - dev_dbg(dev, "unsupported LDDFR bit depth.\n"); - return -EINVAL; - } - - if (bpp) - *bpp = lbpp; - if (gray) - *gray = lgray; - - return 0; -} - -static int sh7760fb_check_var(struct fb_var_screeninfo *var, - struct fb_info *info) -{ - struct fb_fix_screeninfo *fix = &info->fix; - struct sh7760fb_par *par = info->par; - int ret, bpp; - - /* get color info from register value */ - ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL); - if (ret) - return ret; - - var->bits_per_pixel = bpp; - - if ((var->grayscale) && (var->bits_per_pixel == 1)) - fix->visual = FB_VISUAL_MONO10; - else if (var->bits_per_pixel >= 15) - fix->visual = FB_VISUAL_TRUECOLOR; - else - fix->visual = FB_VISUAL_PSEUDOCOLOR; - - /* TODO: add some more validation here */ - return 0; -} - -/* - * sh7760fb_set_par - set videomode. - * - * NOTE: The rotation, grayscale and DSTN codepaths are - * totally untested! - */ -static int sh7760fb_set_par(struct fb_info *info) -{ - struct sh7760fb_par *par = info->par; - struct fb_videomode *vm = par->pd->def_mode; - unsigned long sbase, dstn_off, ldsarl, stride; - unsigned short hsynp, hsynw, htcn, hdcn; - unsigned short vsynp, vsynw, vtln, vdln; - unsigned short lddfr, ldmtr; - int ret, bpp, gray; - - par->rot = par->pd->rotate; - - /* rotate only works with xres <= 320 */ - if (par->rot && (vm->xres > 320)) { - dev_dbg(info->dev, "rotation disabled due to display size\n"); - par->rot = 0; - } - - /* calculate LCDC reg vals from display parameters */ - hsynp = vm->right_margin + vm->xres; - hsynw = vm->hsync_len; - htcn = vm->left_margin + hsynp + hsynw; - hdcn = vm->xres; - vsynp = vm->lower_margin + vm->yres; - vsynw = vm->vsync_len; - vtln = vm->upper_margin + vsynp + vsynw; - vdln = vm->yres; - - /* get color info from register value */ - ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, &gray); - if (ret) - return ret; - - dev_dbg(info->dev, "%dx%d %dbpp %s (orientation %s)\n", hdcn, - vdln, bpp, gray ? "grayscale" : "color", - par->rot ? "rotated" : "normal"); - -#ifdef CONFIG_CPU_LITTLE_ENDIAN - lddfr = par->pd->lddfr | (1 << 8); -#else - lddfr = par->pd->lddfr & ~(1 << 8); -#endif - - ldmtr = par->pd->ldmtr; - - if (!(vm->sync & FB_SYNC_HOR_HIGH_ACT)) - ldmtr |= LDMTR_CL1POL; - if (!(vm->sync & FB_SYNC_VERT_HIGH_ACT)) - ldmtr |= LDMTR_FLMPOL; - - /* shut down LCDC before changing display parameters */ - sh7760fb_blank(FB_BLANK_POWERDOWN, info); - - iowrite16(par->pd->ldickr, par->base + LDICKR); /* pixclock */ - iowrite16(ldmtr, par->base + LDMTR); /* polarities */ - iowrite16(lddfr, par->base + LDDFR); /* color/depth */ - iowrite16((par->rot ? 1 << 13 : 0), par->base + LDSMR); /* rotate */ - iowrite16(par->pd->ldpmmr, par->base + LDPMMR); /* Power Management */ - iowrite16(par->pd->ldpspr, par->base + LDPSPR); /* Power Supply Ctrl */ - - /* display resolution */ - iowrite16(((htcn >> 3) - 1) | (((hdcn >> 3) - 1) << 8), - par->base + LDHCNR); - iowrite16(vdln - 1, par->base + LDVDLNR); - iowrite16(vtln - 1, par->base + LDVTLNR); - /* h/v sync signals */ - iowrite16((vsynp - 1) | ((vsynw - 1) << 12), par->base + LDVSYNR); - iowrite16(((hsynp >> 3) - 1) | (((hsynw >> 3) - 1) << 12), - par->base + LDHSYNR); - /* AC modulation sig */ - iowrite16(par->pd->ldaclnr, par->base + LDACLNR); - - stride = (par->rot) ? vtln : hdcn; - if (!gray) - stride *= (bpp + 7) >> 3; - else { - if (bpp == 1) - stride >>= 3; - else if (bpp == 2) - stride >>= 2; - else if (bpp == 4) - stride >>= 1; - /* 6 bpp == 8 bpp */ - } - - /* if rotated, stride must be power of 2 */ - if (par->rot) { - unsigned long bit = 1 << 31; - while (bit) { - if (stride & bit) - break; - bit >>= 1; - } - if (stride & ~bit) - stride = bit << 1; /* not P-o-2, round up */ - } - iowrite16(stride, par->base + LDLAOR); - - /* set display mem start address */ - sbase = (unsigned long)par->fbdma; - if (par->rot) - sbase += (hdcn - 1) * stride; - - iowrite32(sbase, par->base + LDSARU); - - /* - * for DSTN need to set address for lower half. - * I (mlau) don't know which address to set it to, - * so I guessed at (stride * yres/2). - */ - if (((ldmtr & 0x003f) >= LDMTR_DSTN_MONO_8) && - ((ldmtr & 0x003f) <= LDMTR_DSTN_COLOR_16)) { - - dev_dbg(info->dev, " ***** DSTN untested! *****\n"); - - dstn_off = stride; - if (par->rot) - dstn_off *= hdcn >> 1; - else - dstn_off *= vdln >> 1; - - ldsarl = sbase + dstn_off; - } else - ldsarl = 0; - - iowrite32(ldsarl, par->base + LDSARL); /* mem for lower half of DSTN */ - - info->fix.line_length = stride; - - sh7760fb_check_var(&info->var, info); - - sh7760fb_blank(FB_BLANK_UNBLANK, info); /* panel on! */ - - dev_dbg(info->dev, "hdcn : %6d htcn : %6d\n", hdcn, htcn); - dev_dbg(info->dev, "hsynw : %6d hsynp : %6d\n", hsynw, hsynp); - dev_dbg(info->dev, "vdln : %6d vtln : %6d\n", vdln, vtln); - dev_dbg(info->dev, "vsynw : %6d vsynp : %6d\n", vsynw, vsynp); - dev_dbg(info->dev, "clksrc: %6d clkdiv: %6d\n", - (par->pd->ldickr >> 12) & 3, par->pd->ldickr & 0x1f); - dev_dbg(info->dev, "ldpmmr: 0x%04x ldpspr: 0x%04x\n", par->pd->ldpmmr, - par->pd->ldpspr); - dev_dbg(info->dev, "ldmtr : 0x%04x lddfr : 0x%04x\n", ldmtr, lddfr); - dev_dbg(info->dev, "ldlaor: %ld\n", stride); - dev_dbg(info->dev, "ldsaru: 0x%08lx ldsarl: 0x%08lx\n", sbase, ldsarl); - - return 0; -} - -static const struct fb_ops sh7760fb_ops = { - .owner = THIS_MODULE, - .fb_blank = sh7760fb_blank, - .fb_check_var = sh7760fb_check_var, - .fb_setcolreg = sh7760_setcolreg, - .fb_set_par = sh7760fb_set_par, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, -}; - -static void sh7760fb_free_mem(struct fb_info *info) -{ - struct sh7760fb_par *par = info->par; - - if (!info->screen_base) - return; - - dma_free_coherent(info->dev, info->screen_size, - info->screen_base, par->fbdma); - - par->fbdma = 0; - info->screen_base = NULL; - info->screen_size = 0; -} - -/* allocate the framebuffer memory. This memory must be in Area3, - * (dictated by the DMA engine) and contiguous, at a 512 byte boundary. - */ -static int sh7760fb_alloc_mem(struct fb_info *info) -{ - struct sh7760fb_par *par = info->par; - void *fbmem; - unsigned long vram; - int ret, bpp; - - if (info->screen_base) - return 0; - - /* get color info from register value */ - ret = sh7760fb_get_color_info(info->dev, par->pd->lddfr, &bpp, NULL); - if (ret) { - printk(KERN_ERR "colinfo\n"); - return ret; - } - - /* min VRAM: xres_min = 16, yres_min = 1, bpp = 1: 2byte -> 1 page - max VRAM: xres_max = 1024, yres_max = 1024, bpp = 16: 2MB */ - - vram = info->var.xres * info->var.yres; - if (info->var.grayscale) { - if (bpp == 1) - vram >>= 3; - else if (bpp == 2) - vram >>= 2; - else if (bpp == 4) - vram >>= 1; - } else if (bpp > 8) - vram *= 2; - if ((vram < 1) || (vram > 1024 * 2048)) { - dev_dbg(info->dev, "too much VRAM required. Check settings\n"); - return -ENODEV; - } - - if (vram < PAGE_SIZE) - vram = PAGE_SIZE; - - fbmem = dma_alloc_coherent(info->dev, vram, &par->fbdma, GFP_KERNEL); - - if (!fbmem) - return -ENOMEM; - - if ((par->fbdma & SH7760FB_DMA_MASK) != SH7760FB_DMA_MASK) { - sh7760fb_free_mem(info); - dev_err(info->dev, "kernel gave me memory at 0x%08lx, which is" - "unusable for the LCDC\n", (unsigned long)par->fbdma); - return -ENOMEM; - } - - info->screen_base = fbmem; - info->screen_size = vram; - info->fix.smem_start = (unsigned long)info->screen_base; - info->fix.smem_len = info->screen_size; - - return 0; -} - -static int sh7760fb_probe(struct platform_device *pdev) -{ - struct fb_info *info; - struct resource *res; - struct sh7760fb_par *par; - int ret; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (unlikely(res == NULL)) { - dev_err(&pdev->dev, "invalid resource\n"); - return -EINVAL; - } - - info = framebuffer_alloc(sizeof(struct sh7760fb_par), &pdev->dev); - if (!info) - return -ENOMEM; - - par = info->par; - par->dev = pdev; - - par->pd = pdev->dev.platform_data; - if (!par->pd) { - dev_dbg(info->dev, "no display setup data!\n"); - ret = -ENODEV; - goto out_fb; - } - - par->ioarea = request_mem_region(res->start, - resource_size(res), pdev->name); - if (!par->ioarea) { - dev_err(&pdev->dev, "mmio area busy\n"); - ret = -EBUSY; - goto out_fb; - } - - par->base = ioremap(res->start, resource_size(res)); - if (!par->base) { - dev_err(&pdev->dev, "cannot remap\n"); - ret = -ENODEV; - goto out_res; - } - - iowrite16(0, par->base + LDINTR); /* disable vsync irq */ - par->irq = platform_get_irq(pdev, 0); - if (par->irq >= 0) { - ret = request_irq(par->irq, sh7760fb_irq, 0, - "sh7760-lcdc", &par->vsync); - if (ret) { - dev_err(&pdev->dev, "cannot grab IRQ\n"); - par->irq = -ENXIO; - } else - disable_irq_nosync(par->irq); - } - - fb_videomode_to_var(&info->var, par->pd->def_mode); - - ret = sh7760fb_alloc_mem(info); - if (ret) { - dev_dbg(info->dev, "framebuffer memory allocation failed!\n"); - goto out_unmap; - } - - info->pseudo_palette = par->pseudo_palette; - - /* fixup color register bitpositions. These are fixed by hardware */ - info->var.red.offset = 11; - info->var.red.length = 5; - info->var.red.msb_right = 0; - - info->var.green.offset = 5; - info->var.green.length = 6; - info->var.green.msb_right = 0; - - info->var.blue.offset = 0; - info->var.blue.length = 5; - info->var.blue.msb_right = 0; - - info->var.transp.offset = 0; - info->var.transp.length = 0; - info->var.transp.msb_right = 0; - - strcpy(info->fix.id, "sh7760-lcdc"); - - /* set the DON2 bit now, before cmap allocation, as it will randomize - * palette memory. - */ - iowrite16(LDCNTR_DON2, par->base + LDCNTR); - info->fbops = &sh7760fb_ops; - - ret = fb_alloc_cmap(&info->cmap, 256, 0); - if (ret) { - dev_dbg(info->dev, "Unable to allocate cmap memory\n"); - goto out_mem; - } - - ret = register_framebuffer(info); - if (ret < 0) { - dev_dbg(info->dev, "cannot register fb!\n"); - goto out_cmap; - } - platform_set_drvdata(pdev, info); - - printk(KERN_INFO "%s: memory at phys 0x%08lx-0x%08lx, size %ld KiB\n", - pdev->name, - (unsigned long)par->fbdma, - (unsigned long)(par->fbdma + info->screen_size - 1), - info->screen_size >> 10); - - return 0; - -out_cmap: - sh7760fb_blank(FB_BLANK_POWERDOWN, info); - fb_dealloc_cmap(&info->cmap); -out_mem: - sh7760fb_free_mem(info); -out_unmap: - if (par->irq >= 0) - free_irq(par->irq, &par->vsync); - iounmap(par->base); -out_res: - release_mem_region(res->start, resource_size(res)); -out_fb: - framebuffer_release(info); - return ret; -} - -static int sh7760fb_remove(struct platform_device *dev) -{ - struct fb_info *info = platform_get_drvdata(dev); - struct sh7760fb_par *par = info->par; - - sh7760fb_blank(FB_BLANK_POWERDOWN, info); - unregister_framebuffer(info); - fb_dealloc_cmap(&info->cmap); - sh7760fb_free_mem(info); - if (par->irq >= 0) - free_irq(par->irq, &par->vsync); - iounmap(par->base); - release_mem_region(par->ioarea->start, resource_size(par->ioarea)); - framebuffer_release(info); - - return 0; -} - -static struct platform_driver sh7760_lcdc_driver = { - .driver = { - .name = "sh7760-lcdc", - }, - .probe = sh7760fb_probe, - .remove = sh7760fb_remove, -}; - -module_platform_driver(sh7760_lcdc_driver); - -MODULE_AUTHOR("Nobuhiro Iwamatsu, Manuel Lauss"); -MODULE_DESCRIPTION("FBdev for SH7760/63 integrated LCD Controller"); -MODULE_LICENSE("GPL v2"); From patchwork Fri Jan 13 06:23:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643093 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 42436C678DD for ; Fri, 13 Jan 2023 06:29:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241219AbjAMG3Z (ORCPT ); Fri, 13 Jan 2023 01:29:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33438 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235576AbjAMG1H (ORCPT ); Fri, 13 Jan 2023 01:27:07 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 505765C1CD; Thu, 12 Jan 2023 22:25:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=mVSad5lHjsb+kxcSGYOjz7Q3t7OZ/7w3LWvLI7wl90c=; b=dTK4NKZNZ24B+Iy3vetLl8In0m 6QyXKjhgkJrMmLcUyhOZKbm0vIupFnylr7pYV8S2hu8IL5FEJ97IN1LaPho1YjqLe7sI4/ONQJffd HrN4knY96XfBH5Dg16XcB4D80tb+duR4+tun9eS3VUi93MmJDYYqXUhNRhigBMvcX6O86ZVpgYnP0 Oxo0qqd0c7Q9G2IGb9v1zvuuBflZwymgNPjOxWZjze2G/7PRQRiTyI0cvMRK8B8AtZNO1IocwGSOj LywcuT2MFfxcH/2VNQ6voqoVr4Z3t4S8OtiyGNcDIfWd6cbKEA49ubHxa8fQ7cQSeujuP6MMQBLYI oC2zjRYw==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUi-000m58-BO; Fri, 13 Jan 2023 06:24:53 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 20/22] media: remove sh_vou Date: Fri, 13 Jan 2023 07:23:37 +0100 Message-Id: <20230113062339.1909087-21-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Now that arch/sh is removed this driver is dead code. Signed-off-by: Christoph Hellwig --- drivers/media/platform/renesas/Kconfig | 9 - drivers/media/platform/renesas/Makefile | 1 - drivers/media/platform/renesas/sh_vou.c | 1375 ----------------------- 3 files changed, 1385 deletions(-) delete mode 100644 drivers/media/platform/renesas/sh_vou.c diff --git a/drivers/media/platform/renesas/Kconfig b/drivers/media/platform/renesas/Kconfig index 0231672a7e1c32..935b24b864380e 100644 --- a/drivers/media/platform/renesas/Kconfig +++ b/drivers/media/platform/renesas/Kconfig @@ -31,15 +31,6 @@ config VIDEO_RCAR_ISP To compile this driver as a module, choose M here: the module will be called rcar-isp. -config VIDEO_SH_VOU - tristate "SuperH VOU video output driver" - depends on V4L_PLATFORM_DRIVERS - depends on VIDEO_DEV && I2C - depends on ARCH_SHMOBILE || COMPILE_TEST - select VIDEOBUF2_DMA_CONTIG - help - Support for the Video Output Unit (VOU) on SuperH SoCs. - source "drivers/media/platform/renesas/rcar-vin/Kconfig" source "drivers/media/platform/renesas/rzg2l-cru/Kconfig" diff --git a/drivers/media/platform/renesas/Makefile b/drivers/media/platform/renesas/Makefile index 55854e8688870f..1ae7d825073df3 100644 --- a/drivers/media/platform/renesas/Makefile +++ b/drivers/media/platform/renesas/Makefile @@ -13,4 +13,3 @@ obj-$(CONFIG_VIDEO_RENESAS_CEU) += renesas-ceu.o obj-$(CONFIG_VIDEO_RENESAS_FCP) += rcar-fcp.o obj-$(CONFIG_VIDEO_RENESAS_FDP1) += rcar_fdp1.o obj-$(CONFIG_VIDEO_RENESAS_JPU) += rcar_jpu.o -obj-$(CONFIG_VIDEO_SH_VOU) += sh_vou.o diff --git a/drivers/media/platform/renesas/sh_vou.c b/drivers/media/platform/renesas/sh_vou.c deleted file mode 100644 index ca4310e26c49ee..00000000000000 --- a/drivers/media/platform/renesas/sh_vou.c +++ /dev/null @@ -1,1375 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * SuperH Video Output Unit (VOU) driver - * - * Copyright (C) 2010, Guennadi Liakhovetski - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include - -/* Mirror addresses are not available for all registers */ -#define VOUER 0 -#define VOUCR 4 -#define VOUSTR 8 -#define VOUVCR 0xc -#define VOUISR 0x10 -#define VOUBCR 0x14 -#define VOUDPR 0x18 -#define VOUDSR 0x1c -#define VOUVPR 0x20 -#define VOUIR 0x24 -#define VOUSRR 0x28 -#define VOUMSR 0x2c -#define VOUHIR 0x30 -#define VOUDFR 0x34 -#define VOUAD1R 0x38 -#define VOUAD2R 0x3c -#define VOUAIR 0x40 -#define VOUSWR 0x44 -#define VOURCR 0x48 -#define VOURPR 0x50 - -enum sh_vou_status { - SH_VOU_IDLE, - SH_VOU_INITIALISING, - SH_VOU_RUNNING, -}; - -#define VOU_MIN_IMAGE_WIDTH 16 -#define VOU_MAX_IMAGE_WIDTH 720 -#define VOU_MIN_IMAGE_HEIGHT 16 - -struct sh_vou_buffer { - struct vb2_v4l2_buffer vb; - struct list_head list; -}; - -static inline struct -sh_vou_buffer *to_sh_vou_buffer(struct vb2_v4l2_buffer *vb2) -{ - return container_of(vb2, struct sh_vou_buffer, vb); -} - -struct sh_vou_device { - struct v4l2_device v4l2_dev; - struct video_device vdev; - struct sh_vou_pdata *pdata; - spinlock_t lock; - void __iomem *base; - /* State information */ - struct v4l2_pix_format pix; - struct v4l2_rect rect; - struct list_head buf_list; - v4l2_std_id std; - int pix_idx; - struct vb2_queue queue; - struct sh_vou_buffer *active; - enum sh_vou_status status; - unsigned sequence; - struct mutex fop_lock; -}; - -/* Register access routines for sides A, B and mirror addresses */ -static void sh_vou_reg_a_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg); -} - -static void sh_vou_reg_ab_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg); - __raw_writel(value, vou_dev->base + reg + 0x1000); -} - -static void sh_vou_reg_m_write(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value) -{ - __raw_writel(value, vou_dev->base + reg + 0x2000); -} - -static u32 sh_vou_reg_a_read(struct sh_vou_device *vou_dev, unsigned int reg) -{ - return __raw_readl(vou_dev->base + reg); -} - -static void sh_vou_reg_a_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - u32 old = __raw_readl(vou_dev->base + reg); - - value = (value & mask) | (old & ~mask); - __raw_writel(value, vou_dev->base + reg); -} - -static void sh_vou_reg_b_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - sh_vou_reg_a_set(vou_dev, reg + 0x1000, value, mask); -} - -static void sh_vou_reg_ab_set(struct sh_vou_device *vou_dev, unsigned int reg, - u32 value, u32 mask) -{ - sh_vou_reg_a_set(vou_dev, reg, value, mask); - sh_vou_reg_b_set(vou_dev, reg, value, mask); -} - -struct sh_vou_fmt { - u32 pfmt; - unsigned char bpp; - unsigned char bpl; - unsigned char rgb; - unsigned char yf; - unsigned char pkf; -}; - -/* Further pixel formats can be added */ -static struct sh_vou_fmt vou_fmt[] = { - { - .pfmt = V4L2_PIX_FMT_NV12, - .bpp = 12, - .bpl = 1, - .yf = 0, - .rgb = 0, - }, - { - .pfmt = V4L2_PIX_FMT_NV16, - .bpp = 16, - .bpl = 1, - .yf = 1, - .rgb = 0, - }, - { - .pfmt = V4L2_PIX_FMT_RGB24, - .bpp = 24, - .bpl = 3, - .pkf = 2, - .rgb = 1, - }, - { - .pfmt = V4L2_PIX_FMT_RGB565, - .bpp = 16, - .bpl = 2, - .pkf = 3, - .rgb = 1, - }, - { - .pfmt = V4L2_PIX_FMT_RGB565X, - .bpp = 16, - .bpl = 2, - .pkf = 3, - .rgb = 1, - }, -}; - -static void sh_vou_schedule_next(struct sh_vou_device *vou_dev, - struct vb2_v4l2_buffer *vbuf) -{ - dma_addr_t addr1, addr2; - - addr1 = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0); - switch (vou_dev->pix.pixelformat) { - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV16: - addr2 = addr1 + vou_dev->pix.width * vou_dev->pix.height; - break; - default: - addr2 = 0; - } - - sh_vou_reg_m_write(vou_dev, VOUAD1R, addr1); - sh_vou_reg_m_write(vou_dev, VOUAD2R, addr2); -} - -static void sh_vou_stream_config(struct sh_vou_device *vou_dev) -{ - unsigned int row_coeff; -#ifdef __LITTLE_ENDIAN - u32 dataswap = 7; -#else - u32 dataswap = 0; -#endif - - switch (vou_dev->pix.pixelformat) { - default: - case V4L2_PIX_FMT_NV12: - case V4L2_PIX_FMT_NV16: - row_coeff = 1; - break; - case V4L2_PIX_FMT_RGB565: - dataswap ^= 1; - fallthrough; - case V4L2_PIX_FMT_RGB565X: - row_coeff = 2; - break; - case V4L2_PIX_FMT_RGB24: - row_coeff = 3; - break; - } - - sh_vou_reg_a_write(vou_dev, VOUSWR, dataswap); - sh_vou_reg_ab_write(vou_dev, VOUAIR, vou_dev->pix.width * row_coeff); -} - -/* Locking: caller holds fop_lock mutex */ -static int sh_vou_queue_setup(struct vb2_queue *vq, - unsigned int *nbuffers, unsigned int *nplanes, - unsigned int sizes[], struct device *alloc_devs[]) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct v4l2_pix_format *pix = &vou_dev->pix; - int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - if (*nplanes) - return sizes[0] < pix->height * bytes_per_line ? -EINVAL : 0; - *nplanes = 1; - sizes[0] = pix->height * bytes_per_line; - return 0; -} - -static int sh_vou_buf_prepare(struct vb2_buffer *vb) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); - struct v4l2_pix_format *pix = &vou_dev->pix; - unsigned bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; - unsigned size = pix->height * bytes_per_line; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - if (vb2_plane_size(vb, 0) < size) { - /* User buffer too small */ - dev_warn(vou_dev->v4l2_dev.dev, "buffer too small (%lu < %u)\n", - vb2_plane_size(vb, 0), size); - return -EINVAL; - } - - vb2_set_plane_payload(vb, 0, size); - return 0; -} - -/* Locking: caller holds fop_lock mutex and vq->irqlock spinlock */ -static void sh_vou_buf_queue(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vb->vb2_queue); - struct sh_vou_buffer *shbuf = to_sh_vou_buffer(vbuf); - unsigned long flags; - - spin_lock_irqsave(&vou_dev->lock, flags); - list_add_tail(&shbuf->list, &vou_dev->buf_list); - spin_unlock_irqrestore(&vou_dev->lock, flags); -} - -static int sh_vou_start_streaming(struct vb2_queue *vq, unsigned int count) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct sh_vou_buffer *buf, *node; - int ret; - - vou_dev->sequence = 0; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, - video, s_stream, 1); - if (ret < 0 && ret != -ENOIOCTLCMD) { - list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { - vb2_buffer_done(&buf->vb.vb2_buf, - VB2_BUF_STATE_QUEUED); - list_del(&buf->list); - } - vou_dev->active = NULL; - return ret; - } - - buf = list_entry(vou_dev->buf_list.next, struct sh_vou_buffer, list); - - vou_dev->active = buf; - - /* Start from side A: we use mirror addresses, so, set B */ - sh_vou_reg_a_write(vou_dev, VOURPR, 1); - dev_dbg(vou_dev->v4l2_dev.dev, "%s: first buffer status 0x%x\n", - __func__, sh_vou_reg_a_read(vou_dev, VOUSTR)); - sh_vou_schedule_next(vou_dev, &buf->vb); - - buf = list_entry(buf->list.next, struct sh_vou_buffer, list); - - /* Second buffer - initialise register side B */ - sh_vou_reg_a_write(vou_dev, VOURPR, 0); - sh_vou_schedule_next(vou_dev, &buf->vb); - - /* Register side switching with frame VSYNC */ - sh_vou_reg_a_write(vou_dev, VOURCR, 5); - - sh_vou_stream_config(vou_dev); - /* Enable End-of-Frame (VSYNC) interrupts */ - sh_vou_reg_a_write(vou_dev, VOUIR, 0x10004); - - /* Two buffers on the queue - activate the hardware */ - vou_dev->status = SH_VOU_RUNNING; - sh_vou_reg_a_write(vou_dev, VOUER, 0x107); - return 0; -} - -static void sh_vou_stop_streaming(struct vb2_queue *vq) -{ - struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); - struct sh_vou_buffer *buf, *node; - unsigned long flags; - - v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, - video, s_stream, 0); - /* disable output */ - sh_vou_reg_a_set(vou_dev, VOUER, 0, 1); - /* ...but the current frame will complete */ - sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x30000); - msleep(50); - spin_lock_irqsave(&vou_dev->lock, flags); - list_for_each_entry_safe(buf, node, &vou_dev->buf_list, list) { - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); - list_del(&buf->list); - } - vou_dev->active = NULL; - spin_unlock_irqrestore(&vou_dev->lock, flags); -} - -static const struct vb2_ops sh_vou_qops = { - .queue_setup = sh_vou_queue_setup, - .buf_prepare = sh_vou_buf_prepare, - .buf_queue = sh_vou_buf_queue, - .start_streaming = sh_vou_start_streaming, - .stop_streaming = sh_vou_stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -/* Video IOCTLs */ -static int sh_vou_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - strscpy(cap->card, "SuperH VOU", sizeof(cap->card)); - strscpy(cap->driver, "sh-vou", sizeof(cap->driver)); - strscpy(cap->bus_info, "platform:sh-vou", sizeof(cap->bus_info)); - return 0; -} - -/* Enumerate formats, that the device can accept from the user */ -static int sh_vou_enum_fmt_vid_out(struct file *file, void *priv, - struct v4l2_fmtdesc *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (fmt->index >= ARRAY_SIZE(vou_fmt)) - return -EINVAL; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - fmt->pixelformat = vou_fmt[fmt->index].pfmt; - - return 0; -} - -static int sh_vou_g_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - fmt->fmt.pix = vou_dev->pix; - - return 0; -} - -static const unsigned char vou_scale_h_num[] = {1, 9, 2, 9, 4}; -static const unsigned char vou_scale_h_den[] = {1, 8, 1, 4, 1}; -static const unsigned char vou_scale_h_fld[] = {0, 2, 1, 3}; -static const unsigned char vou_scale_v_num[] = {1, 2, 4}; -static const unsigned char vou_scale_v_den[] = {1, 1, 1}; -static const unsigned char vou_scale_v_fld[] = {0, 1}; - -static void sh_vou_configure_geometry(struct sh_vou_device *vou_dev, - int pix_idx, int w_idx, int h_idx) -{ - struct sh_vou_fmt *fmt = vou_fmt + pix_idx; - unsigned int black_left, black_top, width_max, - frame_in_height, frame_out_height, frame_out_top; - struct v4l2_rect *rect = &vou_dev->rect; - struct v4l2_pix_format *pix = &vou_dev->pix; - u32 vouvcr = 0, dsr_h, dsr_v; - - if (vou_dev->std & V4L2_STD_525_60) { - width_max = 858; - /* height_max = 262; */ - } else { - width_max = 864; - /* height_max = 312; */ - } - - frame_in_height = pix->height / 2; - frame_out_height = rect->height / 2; - frame_out_top = rect->top / 2; - - /* - * Cropping scheme: max useful image is 720x480, and the total video - * area is 858x525 (NTSC) or 864x625 (PAL). AK8813 / 8814 starts - * sampling data beginning with fixed 276th (NTSC) / 288th (PAL) clock, - * of which the first 33 / 25 clocks HSYNC must be held active. This - * has to be configured in CR[HW]. 1 pixel equals 2 clock periods. - * This gives CR[HW] = 16 / 12, VPR[HVP] = 138 / 144, which gives - * exactly 858 - 138 = 864 - 144 = 720! We call the out-of-display area, - * beyond DSR, specified on the left and top by the VPR register "black - * pixels" and out-of-image area (DPR) "background pixels." We fix VPR - * at 138 / 144 : 20, because that's the HSYNC timing, that our first - * client requires, and that's exactly what leaves us 720 pixels for the - * image; we leave VPR[VVP] at default 20 for now, because the client - * doesn't seem to have any special requirements for it. Otherwise we - * could also set it to max - 240 = 22 / 72. Thus VPR depends only on - * the selected standard, and DPR and DSR are selected according to - * cropping. Q: how does the client detect the first valid line? Does - * HSYNC stay inactive during invalid (black) lines? - */ - black_left = width_max - VOU_MAX_IMAGE_WIDTH; - black_top = 20; - - dsr_h = rect->width + rect->left; - dsr_v = frame_out_height + frame_out_top; - - dev_dbg(vou_dev->v4l2_dev.dev, - "image %ux%u, black %u:%u, offset %u:%u, display %ux%u\n", - pix->width, frame_in_height, black_left, black_top, - rect->left, frame_out_top, dsr_h, dsr_v); - - /* VOUISR height - half of a frame height in frame mode */ - sh_vou_reg_ab_write(vou_dev, VOUISR, (pix->width << 16) | frame_in_height); - sh_vou_reg_ab_write(vou_dev, VOUVPR, (black_left << 16) | black_top); - sh_vou_reg_ab_write(vou_dev, VOUDPR, (rect->left << 16) | frame_out_top); - sh_vou_reg_ab_write(vou_dev, VOUDSR, (dsr_h << 16) | dsr_v); - - /* - * if necessary, we could set VOUHIR to - * max(black_left + dsr_h, width_max) here - */ - - if (w_idx) - vouvcr |= (1 << 15) | (vou_scale_h_fld[w_idx - 1] << 4); - if (h_idx) - vouvcr |= (1 << 14) | vou_scale_v_fld[h_idx - 1]; - - dev_dbg(vou_dev->v4l2_dev.dev, "0x%08x: scaling 0x%x\n", - fmt->pfmt, vouvcr); - - /* To produce a colour bar for testing set bit 23 of VOUVCR */ - sh_vou_reg_ab_write(vou_dev, VOUVCR, vouvcr); - sh_vou_reg_ab_write(vou_dev, VOUDFR, - fmt->pkf | (fmt->yf << 8) | (fmt->rgb << 16)); -} - -struct sh_vou_geometry { - struct v4l2_rect output; - unsigned int in_width; - unsigned int in_height; - int scale_idx_h; - int scale_idx_v; -}; - -/* - * Find input geometry, that we can use to produce output, closest to the - * requested rectangle, using VOU scaling - */ -static void vou_adjust_input(struct sh_vou_geometry *geo, v4l2_std_id std) -{ - /* The compiler cannot know, that best and idx will indeed be set */ - unsigned int best_err = UINT_MAX, best = 0, img_height_max; - int i, idx = 0; - - if (std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - /* Image width must be a multiple of 4 */ - v4l_bound_align_image(&geo->in_width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, - &geo->in_height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - - /* Select scales to come as close as possible to the output image */ - for (i = ARRAY_SIZE(vou_scale_h_num) - 1; i >= 0; i--) { - unsigned int err; - unsigned int found = geo->output.width * vou_scale_h_den[i] / - vou_scale_h_num[i]; - - if (found > VOU_MAX_IMAGE_WIDTH) - /* scales increase */ - break; - - err = abs(found - geo->in_width); - if (err < best_err) { - best_err = err; - idx = i; - best = found; - } - if (!err) - break; - } - - geo->in_width = best; - geo->scale_idx_h = idx; - - best_err = UINT_MAX; - - /* This loop can be replaced with one division */ - for (i = ARRAY_SIZE(vou_scale_v_num) - 1; i >= 0; i--) { - unsigned int err; - unsigned int found = geo->output.height * vou_scale_v_den[i] / - vou_scale_v_num[i]; - - if (found > img_height_max) - /* scales increase */ - break; - - err = abs(found - geo->in_height); - if (err < best_err) { - best_err = err; - idx = i; - best = found; - } - if (!err) - break; - } - - geo->in_height = best; - geo->scale_idx_v = idx; -} - -/* - * Find output geometry, that we can produce, using VOU scaling, closest to - * the requested rectangle - */ -static void vou_adjust_output(struct sh_vou_geometry *geo, v4l2_std_id std) -{ - unsigned int best_err = UINT_MAX, best = geo->in_width, - width_max, height_max, img_height_max; - int i, idx_h = 0, idx_v = 0; - - if (std & V4L2_STD_525_60) { - width_max = 858; - height_max = 262 * 2; - img_height_max = 480; - } else { - width_max = 864; - height_max = 312 * 2; - img_height_max = 576; - } - - /* Select scales to come as close as possible to the output image */ - for (i = 0; i < ARRAY_SIZE(vou_scale_h_num); i++) { - unsigned int err; - unsigned int found = geo->in_width * vou_scale_h_num[i] / - vou_scale_h_den[i]; - - if (found > VOU_MAX_IMAGE_WIDTH) - /* scales increase */ - break; - - err = abs(found - geo->output.width); - if (err < best_err) { - best_err = err; - idx_h = i; - best = found; - } - if (!err) - break; - } - - geo->output.width = best; - geo->scale_idx_h = idx_h; - if (geo->output.left + best > width_max) - geo->output.left = width_max - best; - - pr_debug("%s(): W %u * %u/%u = %u\n", __func__, geo->in_width, - vou_scale_h_num[idx_h], vou_scale_h_den[idx_h], best); - - best_err = UINT_MAX; - - /* This loop can be replaced with one division */ - for (i = 0; i < ARRAY_SIZE(vou_scale_v_num); i++) { - unsigned int err; - unsigned int found = geo->in_height * vou_scale_v_num[i] / - vou_scale_v_den[i]; - - if (found > img_height_max) - /* scales increase */ - break; - - err = abs(found - geo->output.height); - if (err < best_err) { - best_err = err; - idx_v = i; - best = found; - } - if (!err) - break; - } - - geo->output.height = best; - geo->scale_idx_v = idx_v; - if (geo->output.top + best > height_max) - geo->output.top = height_max - best; - - pr_debug("%s(): H %u * %u/%u = %u\n", __func__, geo->in_height, - vou_scale_v_num[idx_v], vou_scale_v_den[idx_v], best); -} - -static int sh_vou_try_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - struct v4l2_pix_format *pix = &fmt->fmt.pix; - unsigned int img_height_max; - int pix_idx; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - pix->field = V4L2_FIELD_INTERLACED; - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - pix->ycbcr_enc = pix->quantization = 0; - - for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) - if (vou_fmt[pix_idx].pfmt == pix->pixelformat) - break; - - if (pix_idx == ARRAY_SIZE(vou_fmt)) - return -EINVAL; - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - v4l_bound_align_image(&pix->width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 2, - &pix->height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - pix->bytesperline = pix->width * vou_fmt[pix_idx].bpl; - pix->sizeimage = pix->height * ((pix->width * vou_fmt[pix_idx].bpp) >> 3); - - return 0; -} - -static int sh_vou_set_fmt_vid_out(struct sh_vou_device *vou_dev, - struct v4l2_pix_format *pix) -{ - unsigned int img_height_max; - struct sh_vou_geometry geo; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - /* Revisit: is this the correct code? */ - .format.code = MEDIA_BUS_FMT_YUYV8_2X8, - .format.field = V4L2_FIELD_INTERLACED, - .format.colorspace = V4L2_COLORSPACE_SMPTE170M, - }; - struct v4l2_mbus_framefmt *mbfmt = &format.format; - int pix_idx; - int ret; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - for (pix_idx = 0; pix_idx < ARRAY_SIZE(vou_fmt); pix_idx++) - if (vou_fmt[pix_idx].pfmt == pix->pixelformat) - break; - - geo.in_width = pix->width; - geo.in_height = pix->height; - geo.output = vou_dev->rect; - - vou_adjust_output(&geo, vou_dev->std); - - mbfmt->width = geo.output.width; - mbfmt->height = geo.output.height; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_fmt, NULL, &format); - /* Must be implemented, so, don't check for -ENOIOCTLCMD */ - if (ret < 0) - return ret; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u -> %ux%u\n", __func__, - geo.output.width, geo.output.height, mbfmt->width, mbfmt->height); - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - /* Sanity checks */ - if ((unsigned)mbfmt->width > VOU_MAX_IMAGE_WIDTH || - (unsigned)mbfmt->height > img_height_max || - mbfmt->code != MEDIA_BUS_FMT_YUYV8_2X8) - return -EIO; - - if (mbfmt->width != geo.output.width || - mbfmt->height != geo.output.height) { - geo.output.width = mbfmt->width; - geo.output.height = mbfmt->height; - - vou_adjust_input(&geo, vou_dev->std); - } - - /* We tried to preserve output rectangle, but it could have changed */ - vou_dev->rect = geo.output; - pix->width = geo.in_width; - pix->height = geo.in_height; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): %ux%u\n", __func__, - pix->width, pix->height); - - vou_dev->pix_idx = pix_idx; - - vou_dev->pix = *pix; - - sh_vou_configure_geometry(vou_dev, pix_idx, - geo.scale_idx_h, geo.scale_idx_v); - - return 0; -} - -static int sh_vou_s_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *fmt) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int ret = sh_vou_try_fmt_vid_out(file, priv, fmt); - - if (ret) - return ret; - return sh_vou_set_fmt_vid_out(vou_dev, &fmt->fmt.pix); -} - -static int sh_vou_enum_output(struct file *file, void *fh, - struct v4l2_output *a) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (a->index) - return -EINVAL; - strscpy(a->name, "Video Out", sizeof(a->name)); - a->type = V4L2_OUTPUT_TYPE_ANALOG; - a->std = vou_dev->vdev.tvnorms; - return 0; -} - -static int sh_vou_g_output(struct file *file, void *fh, unsigned int *i) -{ - *i = 0; - return 0; -} - -static int sh_vou_s_output(struct file *file, void *fh, unsigned int i) -{ - return i ? -EINVAL : 0; -} - -static u32 sh_vou_ntsc_mode(enum sh_vou_bus_fmt bus_fmt) -{ - switch (bus_fmt) { - default: - pr_warn("%s(): Invalid bus-format code %d, using default 8-bit\n", - __func__, bus_fmt); - fallthrough; - case SH_VOU_BUS_8BIT: - return 1; - case SH_VOU_BUS_16BIT: - return 0; - case SH_VOU_BUS_BT656: - return 3; - } -} - -static int sh_vou_s_std(struct file *file, void *priv, v4l2_std_id std_id) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int ret; - - dev_dbg(vou_dev->v4l2_dev.dev, "%s(): 0x%llx\n", __func__, std_id); - - if (std_id == vou_dev->std) - return 0; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, video, - s_std_output, std_id); - /* Shall we continue, if the subdev doesn't support .s_std_output()? */ - if (ret < 0 && ret != -ENOIOCTLCMD) - return ret; - - vou_dev->rect.top = vou_dev->rect.left = 0; - vou_dev->rect.width = VOU_MAX_IMAGE_WIDTH; - if (std_id & V4L2_STD_525_60) { - sh_vou_reg_ab_set(vou_dev, VOUCR, - sh_vou_ntsc_mode(vou_dev->pdata->bus_fmt) << 29, 7 << 29); - vou_dev->rect.height = 480; - } else { - sh_vou_reg_ab_set(vou_dev, VOUCR, 5 << 29, 7 << 29); - vou_dev->rect.height = 576; - } - - vou_dev->pix.width = vou_dev->rect.width; - vou_dev->pix.height = vou_dev->rect.height; - vou_dev->pix.bytesperline = - vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpl; - vou_dev->pix.sizeimage = vou_dev->pix.height * - ((vou_dev->pix.width * vou_fmt[vou_dev->pix_idx].bpp) >> 3); - vou_dev->std = std_id; - sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); - - return 0; -} - -static int sh_vou_g_std(struct file *file, void *priv, v4l2_std_id *std) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - - *std = vou_dev->std; - - return 0; -} - -static int sh_vou_log_status(struct file *file, void *priv) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - pr_info("VOUER: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUER)); - pr_info("VOUCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUCR)); - pr_info("VOUSTR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSTR)); - pr_info("VOUVCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVCR)); - pr_info("VOUISR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUISR)); - pr_info("VOUBCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUBCR)); - pr_info("VOUDPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDPR)); - pr_info("VOUDSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDSR)); - pr_info("VOUVPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUVPR)); - pr_info("VOUIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUIR)); - pr_info("VOUSRR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSRR)); - pr_info("VOUMSR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUMSR)); - pr_info("VOUHIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUHIR)); - pr_info("VOUDFR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUDFR)); - pr_info("VOUAD1R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD1R)); - pr_info("VOUAD2R: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAD2R)); - pr_info("VOUAIR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUAIR)); - pr_info("VOUSWR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOUSWR)); - pr_info("VOURCR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURCR)); - pr_info("VOURPR: 0x%08x\n", sh_vou_reg_a_read(vou_dev, VOURPR)); - return 0; -} - -static int sh_vou_g_selection(struct file *file, void *fh, - struct v4l2_selection *sel) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - - if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - switch (sel->target) { - case V4L2_SEL_TGT_COMPOSE: - sel->r = vou_dev->rect; - break; - case V4L2_SEL_TGT_COMPOSE_DEFAULT: - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - sel->r.left = 0; - sel->r.top = 0; - sel->r.width = VOU_MAX_IMAGE_WIDTH; - if (vou_dev->std & V4L2_STD_525_60) - sel->r.height = 480; - else - sel->r.height = 576; - break; - default: - return -EINVAL; - } - return 0; -} - -/* Assume a dull encoder, do all the work ourselves. */ -static int sh_vou_s_selection(struct file *file, void *fh, - struct v4l2_selection *sel) -{ - struct v4l2_rect *rect = &sel->r; - struct sh_vou_device *vou_dev = video_drvdata(file); - struct v4l2_subdev_selection sd_sel = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - .target = V4L2_SEL_TGT_COMPOSE, - }; - struct v4l2_pix_format *pix = &vou_dev->pix; - struct sh_vou_geometry geo; - struct v4l2_subdev_format format = { - .which = V4L2_SUBDEV_FORMAT_ACTIVE, - /* Revisit: is this the correct code? */ - .format.code = MEDIA_BUS_FMT_YUYV8_2X8, - .format.field = V4L2_FIELD_INTERLACED, - .format.colorspace = V4L2_COLORSPACE_SMPTE170M, - }; - unsigned int img_height_max; - int ret; - - if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT || - sel->target != V4L2_SEL_TGT_COMPOSE) - return -EINVAL; - - if (vb2_is_busy(&vou_dev->queue)) - return -EBUSY; - - if (vou_dev->std & V4L2_STD_525_60) - img_height_max = 480; - else - img_height_max = 576; - - v4l_bound_align_image(&rect->width, - VOU_MIN_IMAGE_WIDTH, VOU_MAX_IMAGE_WIDTH, 1, - &rect->height, - VOU_MIN_IMAGE_HEIGHT, img_height_max, 1, 0); - - if (rect->width + rect->left > VOU_MAX_IMAGE_WIDTH) - rect->left = VOU_MAX_IMAGE_WIDTH - rect->width; - - if (rect->height + rect->top > img_height_max) - rect->top = img_height_max - rect->height; - - geo.output = *rect; - geo.in_width = pix->width; - geo.in_height = pix->height; - - /* Configure the encoder one-to-one, position at 0, ignore errors */ - sd_sel.r.width = geo.output.width; - sd_sel.r.height = geo.output.height; - /* - * We first issue a S_SELECTION, so that the subsequent S_FMT delivers the - * final encoder configuration. - */ - v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_selection, NULL, &sd_sel); - format.format.width = geo.output.width; - format.format.height = geo.output.height; - ret = v4l2_device_call_until_err(&vou_dev->v4l2_dev, 0, pad, - set_fmt, NULL, &format); - /* Must be implemented, so, don't check for -ENOIOCTLCMD */ - if (ret < 0) - return ret; - - /* Sanity checks */ - if ((unsigned)format.format.width > VOU_MAX_IMAGE_WIDTH || - (unsigned)format.format.height > img_height_max || - format.format.code != MEDIA_BUS_FMT_YUYV8_2X8) - return -EIO; - - geo.output.width = format.format.width; - geo.output.height = format.format.height; - - /* - * No down-scaling. According to the API, current call has precedence: - * https://linuxtv.org/downloads/v4l-dvb-apis/uapi/v4l/crop.html#cropping-structures - */ - vou_adjust_input(&geo, vou_dev->std); - - /* We tried to preserve output rectangle, but it could have changed */ - vou_dev->rect = geo.output; - pix->width = geo.in_width; - pix->height = geo.in_height; - - sh_vou_configure_geometry(vou_dev, vou_dev->pix_idx, - geo.scale_idx_h, geo.scale_idx_v); - - return 0; -} - -static irqreturn_t sh_vou_isr(int irq, void *dev_id) -{ - struct sh_vou_device *vou_dev = dev_id; - static unsigned long j; - struct sh_vou_buffer *vb; - static int cnt; - u32 irq_status = sh_vou_reg_a_read(vou_dev, VOUIR), masked; - u32 vou_status = sh_vou_reg_a_read(vou_dev, VOUSTR); - - if (!(irq_status & 0x300)) { - if (printk_timed_ratelimit(&j, 500)) - dev_warn(vou_dev->v4l2_dev.dev, "IRQ status 0x%x!\n", - irq_status); - return IRQ_NONE; - } - - spin_lock(&vou_dev->lock); - if (!vou_dev->active || list_empty(&vou_dev->buf_list)) { - if (printk_timed_ratelimit(&j, 500)) - dev_warn(vou_dev->v4l2_dev.dev, - "IRQ without active buffer: %x!\n", irq_status); - /* Just ack: buf_release will disable further interrupts */ - sh_vou_reg_a_set(vou_dev, VOUIR, 0, 0x300); - spin_unlock(&vou_dev->lock); - return IRQ_HANDLED; - } - - masked = ~(0x300 & irq_status) & irq_status & 0x30304; - dev_dbg(vou_dev->v4l2_dev.dev, - "IRQ status 0x%x -> 0x%x, VOU status 0x%x, cnt %d\n", - irq_status, masked, vou_status, cnt); - - cnt++; - /* side = vou_status & 0x10000; */ - - /* Clear only set interrupts */ - sh_vou_reg_a_write(vou_dev, VOUIR, masked); - - vb = vou_dev->active; - if (list_is_singular(&vb->list)) { - /* Keep cycling while no next buffer is available */ - sh_vou_schedule_next(vou_dev, &vb->vb); - spin_unlock(&vou_dev->lock); - return IRQ_HANDLED; - } - - list_del(&vb->list); - - vb->vb.vb2_buf.timestamp = ktime_get_ns(); - vb->vb.sequence = vou_dev->sequence++; - vb->vb.field = V4L2_FIELD_INTERLACED; - vb2_buffer_done(&vb->vb.vb2_buf, VB2_BUF_STATE_DONE); - - vou_dev->active = list_entry(vou_dev->buf_list.next, - struct sh_vou_buffer, list); - - if (list_is_singular(&vou_dev->buf_list)) { - /* Keep cycling while no next buffer is available */ - sh_vou_schedule_next(vou_dev, &vou_dev->active->vb); - } else { - struct sh_vou_buffer *new = list_entry(vou_dev->active->list.next, - struct sh_vou_buffer, list); - sh_vou_schedule_next(vou_dev, &new->vb); - } - - spin_unlock(&vou_dev->lock); - - return IRQ_HANDLED; -} - -static int sh_vou_hw_init(struct sh_vou_device *vou_dev) -{ - struct sh_vou_pdata *pdata = vou_dev->pdata; - u32 voucr = sh_vou_ntsc_mode(pdata->bus_fmt) << 29; - int i = 100; - - /* Disable all IRQs */ - sh_vou_reg_a_write(vou_dev, VOUIR, 0); - - /* Reset VOU interfaces - registers unaffected */ - sh_vou_reg_a_write(vou_dev, VOUSRR, 0x101); - while (--i && (sh_vou_reg_a_read(vou_dev, VOUSRR) & 0x101)) - udelay(1); - - if (!i) - return -ETIMEDOUT; - - dev_dbg(vou_dev->v4l2_dev.dev, "Reset took %dus\n", 100 - i); - - if (pdata->flags & SH_VOU_PCLK_FALLING) - voucr |= 1 << 28; - if (pdata->flags & SH_VOU_HSYNC_LOW) - voucr |= 1 << 27; - if (pdata->flags & SH_VOU_VSYNC_LOW) - voucr |= 1 << 26; - sh_vou_reg_ab_set(vou_dev, VOUCR, voucr, 0xfc000000); - - /* Manual register side switching at first */ - sh_vou_reg_a_write(vou_dev, VOURCR, 4); - /* Default - fixed HSYNC length, can be made configurable is required */ - sh_vou_reg_ab_write(vou_dev, VOUMSR, 0x800000); - - sh_vou_set_fmt_vid_out(vou_dev, &vou_dev->pix); - - return 0; -} - -/* File operations */ -static int sh_vou_open(struct file *file) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - int err; - - if (mutex_lock_interruptible(&vou_dev->fop_lock)) - return -ERESTARTSYS; - - err = v4l2_fh_open(file); - if (err) - goto done_open; - if (v4l2_fh_is_singular_file(file) && - vou_dev->status == SH_VOU_INITIALISING) { - /* First open */ - err = pm_runtime_resume_and_get(vou_dev->v4l2_dev.dev); - if (err < 0) { - v4l2_fh_release(file); - goto done_open; - } - err = sh_vou_hw_init(vou_dev); - if (err < 0) { - pm_runtime_put(vou_dev->v4l2_dev.dev); - v4l2_fh_release(file); - } else { - vou_dev->status = SH_VOU_IDLE; - } - } -done_open: - mutex_unlock(&vou_dev->fop_lock); - return err; -} - -static int sh_vou_release(struct file *file) -{ - struct sh_vou_device *vou_dev = video_drvdata(file); - bool is_last; - - mutex_lock(&vou_dev->fop_lock); - is_last = v4l2_fh_is_singular_file(file); - _vb2_fop_release(file, NULL); - if (is_last) { - /* Last close */ - vou_dev->status = SH_VOU_INITIALISING; - sh_vou_reg_a_set(vou_dev, VOUER, 0, 0x101); - pm_runtime_put(vou_dev->v4l2_dev.dev); - } - mutex_unlock(&vou_dev->fop_lock); - return 0; -} - -/* sh_vou display ioctl operations */ -static const struct v4l2_ioctl_ops sh_vou_ioctl_ops = { - .vidioc_querycap = sh_vou_querycap, - .vidioc_enum_fmt_vid_out = sh_vou_enum_fmt_vid_out, - .vidioc_g_fmt_vid_out = sh_vou_g_fmt_vid_out, - .vidioc_s_fmt_vid_out = sh_vou_s_fmt_vid_out, - .vidioc_try_fmt_vid_out = sh_vou_try_fmt_vid_out, - .vidioc_reqbufs = vb2_ioctl_reqbufs, - .vidioc_create_bufs = vb2_ioctl_create_bufs, - .vidioc_querybuf = vb2_ioctl_querybuf, - .vidioc_qbuf = vb2_ioctl_qbuf, - .vidioc_dqbuf = vb2_ioctl_dqbuf, - .vidioc_prepare_buf = vb2_ioctl_prepare_buf, - .vidioc_streamon = vb2_ioctl_streamon, - .vidioc_streamoff = vb2_ioctl_streamoff, - .vidioc_expbuf = vb2_ioctl_expbuf, - .vidioc_g_output = sh_vou_g_output, - .vidioc_s_output = sh_vou_s_output, - .vidioc_enum_output = sh_vou_enum_output, - .vidioc_s_std = sh_vou_s_std, - .vidioc_g_std = sh_vou_g_std, - .vidioc_g_selection = sh_vou_g_selection, - .vidioc_s_selection = sh_vou_s_selection, - .vidioc_log_status = sh_vou_log_status, -}; - -static const struct v4l2_file_operations sh_vou_fops = { - .owner = THIS_MODULE, - .open = sh_vou_open, - .release = sh_vou_release, - .unlocked_ioctl = video_ioctl2, - .mmap = vb2_fop_mmap, - .poll = vb2_fop_poll, - .write = vb2_fop_write, -}; - -static const struct video_device sh_vou_video_template = { - .name = "sh_vou", - .fops = &sh_vou_fops, - .ioctl_ops = &sh_vou_ioctl_ops, - .tvnorms = V4L2_STD_525_60, /* PAL only supported in 8-bit non-bt656 mode */ - .vfl_dir = VFL_DIR_TX, - .device_caps = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE | - V4L2_CAP_STREAMING, -}; - -static int sh_vou_probe(struct platform_device *pdev) -{ - struct sh_vou_pdata *vou_pdata = pdev->dev.platform_data; - struct v4l2_rect *rect; - struct v4l2_pix_format *pix; - struct i2c_adapter *i2c_adap; - struct video_device *vdev; - struct sh_vou_device *vou_dev; - struct resource *reg_res; - struct v4l2_subdev *subdev; - struct vb2_queue *q; - int irq, ret; - - reg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - irq = platform_get_irq(pdev, 0); - - if (!vou_pdata || !reg_res || irq <= 0) { - dev_err(&pdev->dev, "Insufficient VOU platform information.\n"); - return -ENODEV; - } - - vou_dev = devm_kzalloc(&pdev->dev, sizeof(*vou_dev), GFP_KERNEL); - if (!vou_dev) - return -ENOMEM; - - INIT_LIST_HEAD(&vou_dev->buf_list); - spin_lock_init(&vou_dev->lock); - mutex_init(&vou_dev->fop_lock); - vou_dev->pdata = vou_pdata; - vou_dev->status = SH_VOU_INITIALISING; - vou_dev->pix_idx = 1; - - rect = &vou_dev->rect; - pix = &vou_dev->pix; - - /* Fill in defaults */ - vou_dev->std = V4L2_STD_NTSC_M; - rect->left = 0; - rect->top = 0; - rect->width = VOU_MAX_IMAGE_WIDTH; - rect->height = 480; - pix->width = VOU_MAX_IMAGE_WIDTH; - pix->height = 480; - pix->pixelformat = V4L2_PIX_FMT_NV16; - pix->field = V4L2_FIELD_INTERLACED; - pix->bytesperline = VOU_MAX_IMAGE_WIDTH; - pix->sizeimage = VOU_MAX_IMAGE_WIDTH * 2 * 480; - pix->colorspace = V4L2_COLORSPACE_SMPTE170M; - - vou_dev->base = devm_ioremap_resource(&pdev->dev, reg_res); - if (IS_ERR(vou_dev->base)) - return PTR_ERR(vou_dev->base); - - ret = devm_request_irq(&pdev->dev, irq, sh_vou_isr, 0, "vou", vou_dev); - if (ret < 0) - return ret; - - ret = v4l2_device_register(&pdev->dev, &vou_dev->v4l2_dev); - if (ret < 0) { - dev_err(&pdev->dev, "Error registering v4l2 device\n"); - return ret; - } - - vdev = &vou_dev->vdev; - *vdev = sh_vou_video_template; - if (vou_pdata->bus_fmt == SH_VOU_BUS_8BIT) - vdev->tvnorms |= V4L2_STD_PAL; - vdev->v4l2_dev = &vou_dev->v4l2_dev; - vdev->release = video_device_release_empty; - vdev->lock = &vou_dev->fop_lock; - - video_set_drvdata(vdev, vou_dev); - - /* Initialize the vb2 queue */ - q = &vou_dev->queue; - q->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; - q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_WRITE; - q->drv_priv = vou_dev; - q->buf_struct_size = sizeof(struct sh_vou_buffer); - q->ops = &sh_vou_qops; - q->mem_ops = &vb2_dma_contig_memops; - q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; - q->min_buffers_needed = 2; - q->lock = &vou_dev->fop_lock; - q->dev = &pdev->dev; - ret = vb2_queue_init(q); - if (ret) - goto ei2cgadap; - - vdev->queue = q; - INIT_LIST_HEAD(&vou_dev->buf_list); - - pm_runtime_enable(&pdev->dev); - pm_runtime_resume(&pdev->dev); - - i2c_adap = i2c_get_adapter(vou_pdata->i2c_adap); - if (!i2c_adap) { - ret = -ENODEV; - goto ei2cgadap; - } - - ret = sh_vou_hw_init(vou_dev); - if (ret < 0) - goto ereset; - - subdev = v4l2_i2c_new_subdev_board(&vou_dev->v4l2_dev, i2c_adap, - vou_pdata->board_info, NULL); - if (!subdev) { - ret = -ENOMEM; - goto ei2cnd; - } - - ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); - if (ret < 0) - goto evregdev; - - return 0; - -evregdev: -ei2cnd: -ereset: - i2c_put_adapter(i2c_adap); -ei2cgadap: - pm_runtime_disable(&pdev->dev); - v4l2_device_unregister(&vou_dev->v4l2_dev); - return ret; -} - -static int sh_vou_remove(struct platform_device *pdev) -{ - struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev); - struct sh_vou_device *vou_dev = container_of(v4l2_dev, - struct sh_vou_device, v4l2_dev); - struct v4l2_subdev *sd = list_entry(v4l2_dev->subdevs.next, - struct v4l2_subdev, list); - struct i2c_client *client = v4l2_get_subdevdata(sd); - - pm_runtime_disable(&pdev->dev); - video_unregister_device(&vou_dev->vdev); - i2c_put_adapter(client->adapter); - v4l2_device_unregister(&vou_dev->v4l2_dev); - return 0; -} - -static struct platform_driver sh_vou = { - .remove = sh_vou_remove, - .driver = { - .name = "sh-vou", - }, -}; - -module_platform_driver_probe(sh_vou, sh_vou_probe); - -MODULE_DESCRIPTION("SuperH VOU driver"); -MODULE_AUTHOR("Guennadi Liakhovetski "); -MODULE_LICENSE("GPL v2"); -MODULE_VERSION("0.1.0"); -MODULE_ALIAS("platform:sh-vou"); From patchwork Fri Jan 13 06:23:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 643094 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06C55C7113B for ; 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Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUl-000m83-Hp; Fri, 13 Jan 2023 06:24:56 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 21/22] drivers: platform: remove is_sh_early_platform_device Date: Fri, 13 Jan 2023 07:23:38 +0100 Message-Id: <20230113062339.1909087-22-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This was used as a hack for sh-architecture device initialization, and with sh gone now, only the stub that always returns 0 is left. Signed-off-by: Christoph Hellwig --- drivers/clocksource/sh_cmt.c | 8 ++------ drivers/clocksource/sh_mtu2.c | 8 ++------ drivers/clocksource/sh_tmu.c | 9 ++------- include/linux/platform_device.h | 12 ------------ 4 files changed, 6 insertions(+), 31 deletions(-) diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index 7fed3529bbaf82..4f6d7d40c9fcb1 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -1109,10 +1109,8 @@ static int sh_cmt_probe(struct platform_device *pdev) struct sh_cmt_device *cmt = platform_get_drvdata(pdev); int ret; - if (!is_sh_early_platform_device(pdev)) { - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); - } + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); if (cmt) { dev_info(&pdev->dev, "kept as earlytimer\n"); @@ -1129,8 +1127,6 @@ static int sh_cmt_probe(struct platform_device *pdev) pm_runtime_idle(&pdev->dev); return ret; } - if (is_sh_early_platform_device(pdev)) - return 0; out: if (cmt->has_clockevent || cmt->has_clocksource) diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index e81e978513f80e..97ac2929e424be 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -448,10 +448,8 @@ static int sh_mtu2_probe(struct platform_device *pdev) struct sh_mtu2_device *mtu = platform_get_drvdata(pdev); int ret; - if (!is_sh_early_platform_device(pdev)) { - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); - } + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); if (mtu) { dev_info(&pdev->dev, "kept as earlytimer\n"); @@ -468,8 +466,6 @@ static int sh_mtu2_probe(struct platform_device *pdev) pm_runtime_idle(&pdev->dev); return ret; } - if (is_sh_early_platform_device(pdev)) - return 0; out: if (mtu->has_clockevent) diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index 596e9146ad54e9..940378d38dd523 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -595,10 +595,8 @@ static int sh_tmu_probe(struct platform_device *pdev) struct sh_tmu_device *tmu = platform_get_drvdata(pdev); int ret; - if (!is_sh_early_platform_device(pdev)) { - pm_runtime_set_active(&pdev->dev); - pm_runtime_enable(&pdev->dev); - } + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); if (tmu) { dev_info(&pdev->dev, "kept as earlytimer\n"); @@ -616,9 +614,6 @@ static int sh_tmu_probe(struct platform_device *pdev) return ret; } - if (is_sh_early_platform_device(pdev)) - return 0; - out: if (tmu->has_clockevent || tmu->has_clocksource) pm_runtime_irq_safe(&pdev->dev); diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index b0d5a253156ece..894939a74dd20f 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -352,18 +352,6 @@ extern int platform_pm_restore(struct device *dev); #define USE_PLATFORM_PM_SLEEP_OPS #endif -#ifndef CONFIG_SUPERH -/* - * REVISIT: This stub is needed for all non-SuperH users of early platform - * drivers. It should go away once we introduce the new platform_device-based - * early driver framework. - */ -static inline int is_sh_early_platform_device(struct platform_device *pdev) -{ - return 0; -} -#endif /* CONFIG_SUPERH */ - /* For now only SuperH uses it */ void early_platform_cleanup(void); From patchwork Fri Jan 13 06:23:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 642574 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BCEE6C71147 for ; Fri, 13 Jan 2023 06:29:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241242AbjAMG32 (ORCPT ); Fri, 13 Jan 2023 01:29:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240857AbjAMG1P (ORCPT ); Fri, 13 Jan 2023 01:27:15 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CA4926B19F; Thu, 12 Jan 2023 22:25:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=V1vQGE3XW96qQp3ejFsm70w3mnOS9+pWBLCZirkv1tk=; b=2+SiOyCvTzvDZZCeuwWrAYwhzj EWAQESOIDtQymDuYM0T7JpVes3xvB7NFWQ+KmJV1uAOpOiRJUBjTMIMZUpzF2ix6MOt0hGo62CWng diwLKN81u+WjRqFmLkwMZ873sIws+XMLCIUxrN4I7r+ZaeFve8swojZ2Nb8EGuKmlXeIEB1nRyph2 AGmxrxbCZm5edKIVp4yRI47qeIEa85kNn0gl7iBuYuEaOtP2HtGe1Lkv6xia/XchQLm3DtxOaVah4 5sBY0LpYQziGvInjmbVYYVxDsXL3Jm0yMz0PJd+Su5dRSgTKQwyncOI0wCWZmAu3ILcI2jS/gxiK0 qG4NqsbA==; Received: from [2001:4bb8:181:656b:9509:7d20:8d39:f895] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pGDUo-000m9z-Df; Fri, 13 Jan 2023 06:24:59 +0000 From: Christoph Hellwig To: Yoshinori Sato , Rich Felker , Arnd Bergmann , Greg Kroah-Hartman Cc: Laurent Pinchart , Kieran Bingham , Geert Uytterhoeven , linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, dmaengine@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, netdev@vger.kernel.org, linux-gpio@vger.kernel.org, linux-rtc@vger.kernel.org, linux-spi@vger.kernel.org, linux-serial@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, alsa-devel@alsa-project.org, linux-sh@vger.kernel.org Subject: [PATCH 22/22] drivers: platform: remove early_platform_cleanup Date: Fri, 13 Jan 2023 07:23:39 +0100 Message-Id: <20230113062339.1909087-23-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230113062339.1909087-1-hch@lst.de> References: <20230113062339.1909087-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This weak stub was only overriden by the now remove sh architecture. Signed-off-by: Christoph Hellwig --- drivers/base/platform.c | 4 ---- include/linux/platform_device.h | 3 --- 2 files changed, 7 deletions(-) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 968f3d71eeab2e..eb3feabf6c2f53 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -1506,14 +1506,10 @@ struct device *platform_find_device_by_driver(struct device *start, } EXPORT_SYMBOL_GPL(platform_find_device_by_driver); -void __weak __init early_platform_cleanup(void) { } - int __init platform_bus_init(void) { int error; - early_platform_cleanup(); - error = device_register(&platform_bus); if (error) { put_device(&platform_bus); diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 894939a74dd20f..86692f730e3a12 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -352,7 +352,4 @@ extern int platform_pm_restore(struct device *dev); #define USE_PLATFORM_PM_SLEEP_OPS #endif -/* For now only SuperH uses it */ -void early_platform_cleanup(void); - #endif /* _PLATFORM_DEVICE_H_ */