From patchwork Tue Sep 5 18:52:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 1830096 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=bgdev-pl.20230601.gappssmtp.com header.i=@bgdev-pl.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=LUlGmE9z; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-gpio-owner@vger.kernel.org; receiver=patchwork.ozlabs.org) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4RgFtw6HR9z1yg7 for ; Wed, 6 Sep 2023 05:29:28 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234895AbjIET33 (ORCPT ); Tue, 5 Sep 2023 15:29:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46542 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236362AbjIET33 (ORCPT ); Tue, 5 Sep 2023 15:29:29 -0400 Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 04972E5B for ; Tue, 5 Sep 2023 12:29:08 -0700 (PDT) Received: by mail-wr1-x433.google.com with SMTP id ffacd0b85a97d-31f2f43d5a0so2552213f8f.1 for ; Tue, 05 Sep 2023 12:29:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1693942141; x=1694546941; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=2+MC7OlTYjYmYcid9pUzzxXRyDGKxkUAmb4nz8uCexs=; b=LUlGmE9ze2mX9dKalpYOpyXcOd5gVfYBHh3QyxF6x6jKiCHyFbbdOS+BwwmJlExl+g hTh5q0ssAiYQGAKYsrBuhRaaqg5rtysUX5Y/DRluezLM9GvSi+HdgbEWkkofSvv/NygV +RnIt+dV+jxzs65wEu8JrqABElNLXcgd+PR1wZU010SiodQNt2ElH0pVkTKJxgz53w5A 61ZV5TmtGObEmA9tOhKsQ3JDkDFLDmXqvFiqg8il7Coysk0++VgMnNi+QU+quZJlxS94 DRrqSu6TuKnNEdAMoOMIjOkBARLaFdmSwSWW+d/1OLZmg4XYEK6I7+A0hxQohr6gn0QC M1ow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693942141; x=1694546941; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=2+MC7OlTYjYmYcid9pUzzxXRyDGKxkUAmb4nz8uCexs=; b=b2/rBPrxrmwYJ0s3bQbb+rsaHuUL/HiYvEmWie6PA0T+lUV3zJ/dMwJ/kgMsqZwLeR Ka8oJgesEkpVcNADvNMhBgFLoY/gwrLD2hpzJ7kQQWVBekCyojGJ91w+dJxkkMnJRps6 HTblepYhJxuw6OOfeaZdB4nnzj9a/wbDe/UOFDGLDaaisiwbkBQtJtX08SXpNf0ornap orc+d8tXbgFXKZ0Eaxo0CHO2M7aIgh/F4CDLuPvaKLxZziGX8bQF2OVRTbK/tc/eA2dj eH35GYe8grnYOnrpnywhaKM+KGONo5hEs2kpt2zF+mFRFgmdKYHWZSDFZIywmZhqI464 lPbA== X-Gm-Message-State: AOJu0YwhuZZW/NJA5Lx5N+PkwNI5gBa5peFeVPtBFjtscXHdXCi/US6a lR4ofz3lp5ivtKBbAURod2cefstqX7My60AIQyE= X-Google-Smtp-Source: AGHT+IGj2EuAvHtXRXD8rdSvHdyQNmCzp7/4dD7j6aPqgw+n/kXSu9aLQQjPpRIFRE646UdFzsOLag== X-Received: by 2002:adf:e0c5:0:b0:319:6b6c:dd01 with SMTP id m5-20020adfe0c5000000b003196b6cdd01mr477303wri.17.1693940014702; Tue, 05 Sep 2023 11:53:34 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:7a54:5dbc:6d09:48b7]) by smtp.gmail.com with ESMTPSA id 17-20020a05600c249100b003fbc30825fbsm17550010wms.39.2023.09.05.11.53.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Sep 2023 11:53:34 -0700 (PDT) From: Bartosz Golaszewski To: Aaro Koskinen , Janusz Krzysztofik , Tony Lindgren , Russell King , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , Dipen Patel , Thierry Reding , Jonathan Hunter , Hans de Goede , Mark Gross Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org, linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, timestamp@lists.linux.dev, linux-tegra@vger.kernel.org, platform-driver-x86@vger.kernel.org, Bartosz Golaszewski Subject: [PATCH 07/21] gpiolib: provide gpio_device_get_base() Date: Tue, 5 Sep 2023 20:52:55 +0200 Message-Id: <20230905185309.131295-8-brgl@bgdev.pl> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230905185309.131295-1-brgl@bgdev.pl> References: <20230905185309.131295-1-brgl@bgdev.pl> MIME-Version: 1.0 X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org From: Bartosz Golaszewski Let's start adding getters for the opaque struct gpio_device. Start with a function allowing to retrieve the base GPIO number. Signed-off-by: Bartosz Golaszewski Acked-by: Linus Walleij --- drivers/gpio/gpiolib.c | 13 +++++++++++++ include/linux/gpio/driver.h | 3 +++ 2 files changed, 16 insertions(+) diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 9637a79a9a60..9715bbc698e9 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -233,6 +233,19 @@ struct gpio_device *gpiod_to_device(struct gpio_desc *desc) } EXPORT_SYMBOL_GPL(gpiod_to_device); +/** + * gpio_device_get_base() - Get the base GPIO number allocated by this device + * @gdev: GPIO device + * + * Returns: + * First GPIO number in the global GPIO numberspace for this device. + */ +int gpio_device_get_base(struct gpio_device *gdev) +{ + return gdev->base; +} +EXPORT_SYMBOL_GPL(gpio_device_get_base); + /* dynamic allocation of GPIOs, e.g. on a hotplugged device */ static int gpiochip_find_base(int ngpio) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index e3747e730ed1..b68b3493b29d 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -780,6 +780,9 @@ void gpiochip_unlock_as_irq(struct gpio_chip *gc, unsigned int offset); struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc); struct gpio_device *gpiod_to_device(struct gpio_desc *desc); +/* struct gpio_device getters */ +int gpio_device_get_base(struct gpio_device *gdev); + #else /* CONFIG_GPIOLIB */ #include