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: 1830066 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=McARVDmm; 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-tegra-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 4RgFFW3FCXz1ygx for ; Wed, 6 Sep 2023 05:00:31 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240996AbjIETAa (ORCPT ); Tue, 5 Sep 2023 15:00:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51478 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236506AbjIETAT (ORCPT ); Tue, 5 Sep 2023 15:00:19 -0400 Received: from mail-wm1-f45.google.com (mail-wm1-f45.google.com [209.85.128.45]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05CF919A6 for ; Tue, 5 Sep 2023 11:59:54 -0700 (PDT) Received: by mail-wm1-f45.google.com with SMTP id 5b1f17b1804b1-40037db2fe7so28206395e9.0 for ; Tue, 05 Sep 2023 11:59:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1693940014; x=1694544814; 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=McARVDmmerEY5wHGnfSVduhuNUmGbxJFUYE82GX2LGMBEzTnsykwiuevbEzqd7cL/R 8sbqPOpfD3tsTqcGab3+HiR06TgCiTRw4EaWIIlsQSwd+dO3+XgF7I+8QiUV9D1nV+pD R1EKI2HerjznBaxEEB52EHOQvC+iPfMNb7fo9s/n5tGlUgQ9sSZIT0ba7L+1TSWAEHb/ 8k9hEbTxfwgxiEXhuKyvFEsaqQQ8W7zrWAiynm0pZzxOGb4oIsEMjITbDm4MldR8XWCh qZ/VPjuVYVbIgn0l8HFm6ZJgqPVabay/Cp5Y1nKRBybc45MhpUi7JFXsj55+MQXj1E60 UcqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693940014; x=1694544814; 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=mE8w99tnueYLTVit9jcD+27PvsWs/5c47c7JBXgPxJP3jkwkAnvo8dVnIHSz6/CU0i 5izc07oM9wt5TYcOi9savMACxtaJJuNLTQ8UWqgdzsECKfEgLSpvSeu2qoQHWBhdQ7F7 pe4OwBOFVIsmoLx1qSqVcHbkewnSMHcSKioDuQk3yorHDfczBIPAEKeZzNai5TcpVaP7 7oN9OFZERb2FjvK0nckj7+htFIQLEnpQFB1+t2VMFbOJ9V8rD4+SkvNWmo4RhIcIHqR9 A+rdrjlqjxdvTE12SpvJCbtoBOC8HbbW8jQlBVCyVxFy8gEF8RVXaL4luA4W1ZSHcsT3 dwkw== X-Gm-Message-State: AOJu0YwhjVK4q1dzEirNdS3KW8QrxGjybn0Y2WOjVtjeqjqPNetASY03 Sg9oz61G/1b9S9Crrq2nGmlZlg== 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,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE, SPF_NONE autolearn=ham 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-tegra@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