From patchwork Tue May 25 05:41:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: aaeon.asus@gmail.com X-Patchwork-Id: 447579 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDAABC2B9F8 for ; Tue, 25 May 2021 05:42:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C66D461413 for ; Tue, 25 May 2021 05:42:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230218AbhEYFnd (ORCPT ); Tue, 25 May 2021 01:43:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229621AbhEYFnc (ORCPT ); Tue, 25 May 2021 01:43:32 -0400 Received: from mail-pg1-x531.google.com (mail-pg1-x531.google.com [IPv6:2607:f8b0:4864:20::531]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7EC90C061574 for ; Mon, 24 May 2021 22:42:03 -0700 (PDT) Received: by mail-pg1-x531.google.com with SMTP id f22so20903346pgb.9 for ; Mon, 24 May 2021 22:42:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=m3jViPEXZqs1xUoIZMnEMnU7OR4mYl4h7j0v+N2r3nQ=; b=FdYxjfpMATGVI7+u/IhDhkYf8bTP2bc8jo87+v+DcPIs9zJpRkz9mJbZCjhjhbD9ab j8DA3ZZ1rLE2DXpbk41AVk0RL9Q+Me4TinU02n5l42W41BGI0BzeUSUyirPk9BTC8DvI 8HpLLb0Aiq3TqgSy3KeMm+iRZVzXePvJNQgM218qF94ZI9UgxbV/D7ynVXnLYHChIbZR 3k6TV1EMUhBqrF+uisq5AaavyggCu4tY4JM4Q/PtkMvJJezT9yZSW+6nUho8InvAsCN8 IeDo30XcTI4e9r5WsbkSOOSQWC1DbRPSc1An9bMjqp2u2feUKWr/uHuR9Hzyg+r3MCaD XKQw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=m3jViPEXZqs1xUoIZMnEMnU7OR4mYl4h7j0v+N2r3nQ=; b=erNNTypprZCpmkroGwF+RjgtrRuUEFKXML7NYrXIsE10WjNys0f0HNfntijjJU/JKO /82lM94TICaYyntiD3r4LcscPGWn5TZMk3z61idj+1Px4l61ZNDaiBPEOUmqCEG6JsTo wPc4szl6ziKzYKiJS8ny6QIuGhCaYW3nENFpwbU5aNK2jdt8UxvOXdRVlLMPHT1eR0U7 SzfRz5jlIiaZwWI0xyrhZQuxlr+tnF4NUOJOfQokSsbYzRAFws1TqnWJgq9I4mD+86MI IFidQ5K2ZVEIzA3ulLjFqmr2B053w5Vc+SQhLSUs8i4vvdUHQsvNLbXA66cpaVUJFtj1 LGnA== X-Gm-Message-State: AOAM532FYiXG3T44cmriyVZoF42ISY8YsoB+Y+dG81AJZYWxRWzBXrmN GfOYM+uy2s94L1VuUbjfMOWRRsrOemM= X-Google-Smtp-Source: ABdhPJwnPYvVigMLzF5UwSvKD8X5bqaJoM1NheZe0e36OwQrlx4L6qxobNmwSYWHda7BpkLQjjiB8g== X-Received: by 2002:a05:6a00:23d0:b029:2de:c1a2:f1e with SMTP id g16-20020a056a0023d0b02902dec1a20f1emr28592465pfc.60.1621921322324; Mon, 24 May 2021 22:42:02 -0700 (PDT) Received: from asus-UPX-TGL01.hitronhub.home ([61.64.1.242]) by smtp.gmail.com with ESMTPSA id m3sm13208256pfh.174.2021.05.24.22.42.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 22:42:02 -0700 (PDT) From: aaeon.asus@gmail.com X-Google-Original-From: kunyang_fan@asus.com To: linux-gpio@vger.kernel.org Cc: acelan.kao@canonical.com, Kunyang_Fan Subject: [PATCH 1/5] mfd: Add support for IO functions of AAEON devices Date: Tue, 25 May 2021 13:41:45 +0800 Message-Id: <20210525054149.1792-1-kunyang_fan@asus.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Kunyang_Fan This adds the supports for multiple IO functions of the AAEON x86 devices and makes use of the WMI interface to control the these IO devices including: - GPIO - LED - Watchdog - HWMON It also adds the mfd child device drivers to support the above IO functions. Signed-off-by: Kunyang_Fan --- MAINTAINERS | 12 +++++++ drivers/mfd/Kconfig | 12 +++++++ drivers/mfd/Makefile | 1 + drivers/mfd/mfd-aaeon.c | 77 +++++++++++++++++++++++++++++++++++++++++ 4 files changed, 102 insertions(+) create mode 100644 drivers/mfd/mfd-aaeon.c diff --git a/MAINTAINERS b/MAINTAINERS index 1c19c1e2c970..49783dd44367 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -257,6 +257,18 @@ W: http://www.adaptec.com/ F: Documentation/scsi/aacraid.rst F: drivers/scsi/aacraid/ +AAEON DEVICE DRIVER WITH WMI INTERFACE +M: Edward Lin +M: Kunyang Fan +M: Frank Hsieh +M: Jacob Wu +S: Supported +F: drivers/gpio/gpio-aaeon.c +F: drivers/hwmon/hwmon-aaeon.c +F: drivers/leds/leds-aaeon.c +F: drivers/mfd/mfd-aaeon.c +F: drivers/watchdog/wdt_aaeon.c + ABI/API L: linux-api@vger.kernel.org F: include/linux/syscalls.h diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index a37d7d171382..f172564eed0d 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -2053,6 +2053,18 @@ config MFD_WCD934X This driver provides common support WCD934x audio codec and its associated Pin Controller, Soundwire Controller and Audio codec. + +config MFD_AAEON + tristate "AAEON WMI MFD devices" + depends on ASUS_WMI + help + Say yes here to support mltiple IO devices on Single Board Computers + produced by AAEON. + + This driver leverages the ASUS WMI interface to access device + resources. + + menu "Multimedia Capabilities Port drivers" depends on ARCH_SA1100 diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 9367a92f795a..36fff3d0da7e 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -264,3 +264,4 @@ obj-$(CONFIG_MFD_ROHM_BD718XX) += rohm-bd718x7.o obj-$(CONFIG_MFD_STMFX) += stmfx.o obj-$(CONFIG_SGI_MFD_IOC3) += ioc3.o +obj-$(CONFIG_MFD_AAEON) += mfd-aaeon.o diff --git a/drivers/mfd/mfd-aaeon.c b/drivers/mfd/mfd-aaeon.c new file mode 100644 index 000000000000..9d2efde53cad --- /dev/null +++ b/drivers/mfd/mfd-aaeon.c @@ -0,0 +1,77 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * UP Board main platform driver and FPGA configuration support + * + * Copyright (c) 2021, AAEON Ltd. + * + * Author: Kunyang_Fan + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define AAEON_WMI_MGMT_GUID "97845ED0-4E6D-11DE-8A39-0800200C9A66" + +struct aaeon_wmi_priv { + const struct mfd_cell *cells; + size_t ncells; +}; + +static const struct mfd_cell aaeon_mfd_cells[] = { + { .name = "gpio-aaeon" }, + { .name = "hwmon-aaeon"}, + { .name = "leds-aaeon"}, + { .name = "wdt-aaeon"}, +}; + +static const struct aaeon_wmi_priv aaeon_wmi_priv_data = { + .cells = aaeon_mfd_cells, + .ncells = ARRAY_SIZE(aaeon_mfd_cells), +}; + +static int aaeon_wmi_probe(struct wmi_device *wdev, const void *context) +{ + struct aaeon_wmi_priv *priv; + + if (!wmi_has_guid(AAEON_WMI_MGMT_GUID)) { + dev_info(&wdev->dev, "AAEON Management GUID not found\n"); + return -ENODEV; + } + + + priv = (struct aaeon_wmi_priv *)context; + dev_set_drvdata(&wdev->dev, priv); + + return devm_mfd_add_devices(&wdev->dev, 0, priv->cells, + priv->ncells, NULL, 0, NULL); +} + +static const struct wmi_device_id aaeon_wmi_id_table[] = { + { AAEON_WMI_MGMT_GUID, (void *)&aaeon_wmi_priv_data }, + {} +}; + +static struct wmi_driver aaeon_wmi_driver = { + .driver = { + .name = "mfd-aaeon", + }, + .id_table = aaeon_wmi_id_table, + .probe = aaeon_wmi_probe, +}; + +module_wmi_driver(aaeon_wmi_driver); + +MODULE_DEVICE_TABLE(wmi, aaeon_wmi_id_table); +MODULE_AUTHOR("Kunyang Fan "); +MODULE_DESCRIPTION("AAEON Board WMI driver"); +MODULE_LICENSE("GPL v2");