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: 721137 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02DC5CA0FFF for ; Tue, 5 Sep 2023 19:13:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242073AbjIETNT (ORCPT ); Tue, 5 Sep 2023 15:13:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242071AbjIETNR (ORCPT ); Tue, 5 Sep 2023 15:13:17 -0400 Received: from mail-ed1-x52b.google.com (mail-ed1-x52b.google.com [IPv6:2a00:1450:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DF6EA1B7 for ; Tue, 5 Sep 2023 12:12:44 -0700 (PDT) Received: by mail-ed1-x52b.google.com with SMTP id 4fb4d7f45d1cf-52e5900cf77so2171197a12.2 for ; Tue, 05 Sep 2023 12:12:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1693941100; x=1694545900; 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=q1/CkWNfqGPyyZAKmTsgH1hQ2aSVo6BfXklBsFVchM3IoLwJ7SI89Zia9tQkQPNSAh 25+tN1hp5O5FDGbawrB5LcAUTPC7sSclTkjWaY3iE7qnwIxY74629ov0KogQc496J1oG 96nFvvTJDvNHzTugtfSMKDa/lsuWd3O6DLoMLqjOE4PspGVsCIEZfxrUZN/7Qu4YOzVL yMUkWUXn7SMeYizlM5ZP6mq/kYiMpsM2qH9tgDgrFUvFYkT7downIT4ybSQCbT2JkzU4 HGq7jcUpF88EMe2rDF+Am0LE68rISFD3jsYLGYucwOezkfAZVeo6a4I2HMy8E0K7FIGh z1cw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693941100; x=1694545900; 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=TVsOjUC4POnmJNsEnDerreOAoiowmK1pIPtHo/Qff57PpqoDVfv6/QoNm2KBkATH73 ZhuM8IGG/bQfkPTonFWXKyOgev1psKmsXCDJbrKp+bUFCxegIBv101D5SmeTPg8DAVUi AJuGoz2NDID9aHGfl5Rry6+ku8y0B1voZj70stOUBueFtzQ2a0SyWlNPIsjFjkWAP7Ly dQCoxXMy7XGz6sYaOHfJrkf2pMvfCtXSnhCSj+K6G/MTAjGVxMjlOlUO5+5D4JFP4EyS CohEuJ5t9NB2kwYl1TJ7HSOIc/kcG7BRabbbuFQrYcgQwuXwIndKSg+BT+wh+Mn4Ti04 euhw== X-Gm-Message-State: AOJu0YykruJ4ZnaCsTZYmYT1jcz0sjgc12usVdtaT9KnkAKbMTDeplBD FJduSrZFJxBUh+oObbSLduqtoYRkIkHqZ3oTLW0= 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 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@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 --- 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