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: 642633 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 18A15C71130 for ; Fri, 13 Jan 2023 06:29:28 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C4DABA357; Fri, 13 Jan 2023 07:28:35 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C4DABA357 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1673591365; bh=Sd9VhLY1af6N5sf5teIGJYuBeBURbg9osFOxBKGLy5U=; h=From:To:Subject:Date:In-Reply-To:References:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=S/GHKnVwDFwTHVrUT89ZxW7JUdUYd4mD66FAMS1WLGFh5JvGvFvyccL7Fpx2d0Kml CMfEBdYio7K8ewCrflYg5jiCTFdXK/BTq20nUmeKOEViZr4txqRO4nHPgXqgnauHFB nBSkvNH5nQg2ZqF4XPQ4hwX4oojcC2av8dEnWQZs= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id 185C2F805F3; Fri, 13 Jan 2023 07:24:58 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 882DAF805E3; Fri, 13 Jan 2023 07:24:55 +0100 (CET) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id 701B6F805DF for ; Fri, 13 Jan 2023 07:24:53 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 701B6F805DF Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, secure) header.d=infradead.org header.i=@infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=Fve8lBIQ 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=4Cn32+DwniiE8Ivc8k8ZYXVlFs6gh/3Rw72W3/GZ4ag=; b=Fve8lBIQorfiJ/FhMD6e1GvYXc rGSPgQTVMyq0dxlP00mFanqHXFeH9t17eVtoz/JRWr+oFTQ0ynGMwYJHt5mfB04KzdaQjOX8Iu9fs nIQCq/R62BjdnWiSBeuBxN7hx5e4sYqYWJU6VIfqx17ddSCZZlu7ubY/3XF9PkfW4XzApYx2Cd9k9 zs2s4D1MofDj9wf4eoTSyb6ybNKwpiGOqGQt9CBguMf+78gDheVOOw6bNmSUU/Blr1SaKqbcwa66y 6cpVyf3vy//XvyjihCdST/c6G+qVI++1b+7abn1kff1W7YyuOYJBrAFCIknOxvbFhCUglhpOxZ9Fo xk7GnO7w==; 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 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 X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, Geert Uytterhoeven , linux-sh@vger.kernel.org, alsa-devel@alsa-project.org, dri-devel@lists.freedesktop.org, linux-mtd@lists.infradead.org, Laurent Pinchart , linux-arch@vger.kernel.org, linux-serial@vger.kernel.org, linux-input@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-gpio@vger.kernel.org, netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Kieran Bingham , linux-i2c@vger.kernel.org, dmaengine@vger.kernel.org, linux-rtc@vger.kernel.org Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" 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");