From patchwork Mon Nov 30 13:31:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Scally X-Patchwork-Id: 334754 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=-15.8 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, 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 0656CC83021 for ; Mon, 30 Nov 2020 13:34:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9EF2720727 for ; Mon, 30 Nov 2020 13:34:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KrwSbRpk" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727195AbgK3Nd4 (ORCPT ); Mon, 30 Nov 2020 08:33:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38714 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726992AbgK3Ndz (ORCPT ); Mon, 30 Nov 2020 08:33:55 -0500 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DDABEC061A54; Mon, 30 Nov 2020 05:32:19 -0800 (PST) Received: by mail-wr1-x441.google.com with SMTP id l1so16212740wrb.9; Mon, 30 Nov 2020 05:32:19 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=89ez14xq7f3eSpkmNmdtRshRAe/5L4lRl0ct9tMiZwI=; b=KrwSbRpkuu4BSm67PVspA3L973/nhfUNUj1LnrJbs+oClFQV1BrpYP88f3Tzyy/pWk S5NBRj2mZaoNXTpLnnYfPH2CZwHqnzwC5dKJDBGXb4TU0KmS/aKJ77BBi60vVxoBkE4N 8RpohPYtH2vluyjhc+Czpsk+ut8KuwuqdbRQtvfHmgxhKGWlUoioGMDYIX25ylVdkchX ujLCdCYhd56UKF876AjE7xWErdGerktBRLDrcIicF1Bp5afBX+CIRrMiJBLKbXLMr2vb zkNdXUQzblbe0w7rYpZexs7Nn+MLgLASnrmLhDzDYmZYOHd0eRBoBtddZn0RuBZ627fr hClw== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=89ez14xq7f3eSpkmNmdtRshRAe/5L4lRl0ct9tMiZwI=; b=P+KNA+iNxTOCERFUWXtkeiZknXY9xtituPGXlRhMA0OUsiw3ROmbQLCmsp/Mud8+ww yOV8+YmL9/2QwEIOtZPA46c3IZcC+klhanUepZY6vIghneOcM+6dhgj9GTJ8yF3bfsi9 zrB6I6mLc8Q3uUAyjdgGbsErMuM1o/6iiF7MTdxFWSpVK9zRtGhHlGjXfnj6+zlmNDor 9CA+SzKmyzxCATYj75vNH2mNVdqXc08iUWX7sSGbGoncPC7K4MZM+KTB2hU/lQz5O1oB Xbwif+FyOAJJSsafXmxpGEKms1TyICVkTwJnZn2xN15xoDKKfsSzLVbxZwf6oDwum04w fuxw== X-Gm-Message-State: AOAM531lL9P8Hj8yVl4eNby1VYZIvAJDm2oQSJK2od5kRpWi2DRsACPj efC+DhVgsoK53HEkKSVzhED/eUoqm8eij7ba X-Google-Smtp-Source: ABdhPJzBAM0ozhvZLf9maCK2gtBJuXaIs+4FGjkWJeME4XV8dzgsQK5BHE8ux3fhzPVaBH11vNi02Q== X-Received: by 2002:adf:c452:: with SMTP id a18mr28980463wrg.189.1606743138401; Mon, 30 Nov 2020 05:32:18 -0800 (PST) Received: from valhalla.home ([2.31.224.80]) by smtp.gmail.com with ESMTPSA id g192sm7452333wme.48.2020.11.30.05.32.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Nov 2020 05:32:17 -0800 (PST) From: Daniel Scally To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org, linux-i2c@vger.kernel.org, linux-media@vger.kernel.org, devel@acpica.org Cc: rjw@rjwysocki.net, lenb@kernel.org, gregkh@linuxfoundation.org, mika.westerberg@linux.intel.com, andriy.shevchenko@linux.intel.com, linus.walleij@linaro.org, bgolaszewski@baylibre.com, wsa@kernel.org, yong.zhi@intel.com, sakari.ailus@linux.intel.com, bingbu.cao@intel.com, tian.shu.qiu@intel.com, mchehab@kernel.org, robert.moore@intel.com, erik.kaneda@intel.com, pmladek@suse.com, rostedt@goodmis.org, sergey.senozhatsky@gmail.com, linux@rasmusvillemoes.dk, kieran.bingham+renesas@ideasonboard.com, jacopo+renesas@jmondi.org, laurent.pinchart+renesas@ideasonboard.com, jorhand@linux.microsoft.com, kitakar@gmail.com, heikki.krogerus@linux.intel.com Subject: [PATCH 17/18] gpio: gpiolib-acpi: Export acpi_get_gpiod() Date: Mon, 30 Nov 2020 13:31:28 +0000 Message-Id: <20201130133129.1024662-18-djrscally@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201130133129.1024662-1-djrscally@gmail.com> References: <20201130133129.1024662-1-djrscally@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org I need to be able to translate GPIO resources in an acpi_device's _CRS into gpio_descs. Those are represented in _CRS as a pathname to a GPIO device plus the pin's index number: this function is perfect for that purpose. Signed-off-by: Daniel Scally --- Changes since RFC v3: - Patch introduced drivers/gpio/gpiolib-acpi.c | 3 ++- include/linux/acpi.h | 5 +++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 834a12f3219e..cfadbc263475 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -111,7 +111,7 @@ static int acpi_gpiochip_find(struct gpio_chip *gc, void *data) * controller does not have GPIO chip registered at the moment. This is to * support probe deferral. */ -static struct gpio_desc *acpi_get_gpiod(char *path, int pin) +struct gpio_desc *acpi_get_gpiod(char *path, int pin) { struct gpio_chip *chip; acpi_handle handle; @@ -127,6 +127,7 @@ static struct gpio_desc *acpi_get_gpiod(char *path, int pin) return gpiochip_get_desc(chip, pin); } +EXPORT_SYMBOL_GPL(acpi_get_gpiod); static irqreturn_t acpi_gpio_irq_handler(int irq, void *data) { diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 39263c6b52e1..737115a93138 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1066,6 +1066,7 @@ void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const c bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, struct acpi_resource_gpio **agpio); int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index); +struct gpio_desc *acpi_get_gpiod(char *path, int pin); #else static inline bool acpi_gpio_get_irq_resource(struct acpi_resource *ares, struct acpi_resource_gpio **agpio) @@ -1076,6 +1077,10 @@ static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index) { return -ENXIO; } +struct gpio_desc *acpi_get_gpiod(char *path, int pin) +{ + return NULL; +} #endif /* Device properties */