From patchwork Tue Sep 5 18:52:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bartosz Golaszewski X-Patchwork-Id: 13374907 Received: from mail-wm1-f42.google.com (mail-wm1-f42.google.com [209.85.128.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CCB07DDD1 for ; Tue, 5 Sep 2023 18:53:37 +0000 (UTC) Received: by mail-wm1-f42.google.com with SMTP id 5b1f17b1804b1-401da71b7c5so28350845e9.2 for ; Tue, 05 Sep 2023 11:53:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bgdev-pl.20230601.gappssmtp.com; s=20230601; t=1693940016; x=1694544816; darn=lists.linux.dev; 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=gD8mhbYtSpsp4MugkXhi33yXQT05nfWNxdtLBId4RL8=; b=F/+gN9qy1gxPTyA8GynKKSrFBTLjETPR8Xw7ygtTr5mvQRTwjjexR4f1j4hLs+2Vy7 FyMc4FSp7mxzjhdKBvjcxZocw4jHrpwix031sdzW3mmXmlbh8xY328DU6Z+tkqvtU8eq oWpDi7HKnGg9EQRdgpbU53ecrtKWB8Gy+J8la0qYIvTeGX4uNE55vlj1ZUuS6TwKd8By zTYXF7jWbp1QuHxzCs28BKMcV5dx8XlmTyQBm7BzE+N9od5osN2p+zcRz9Jhuas9ldEz 7tSnhlksQ5CwA4wGZgBfhuzEbms03Ffn9GlYecw7OhpRJIesqxSTiT78g1STCzRVU9zp JpOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693940016; x=1694544816; 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=gD8mhbYtSpsp4MugkXhi33yXQT05nfWNxdtLBId4RL8=; b=MfytPKMoeSC9LU8XPnox+EWIBXOiwQ3IItgGda2fQc9QhYtTPdnT6FuvStuDaaVPzO X+Xo2iz3R7dhgOvsDMnT5d90bkJr7S1KEQM/RyVTZFSUos5+7yjfvJ7j+dWMcP8fxUVK 3nf+bElGD2Un+DkFJf2tKLX3yVpJ+6pkp1d6qHywMaRZyixqjK+LpJ6S+JFTZHFCxgm7 jbV7smA0Z1lKgn2dwmjRLXRKSo5OBje7gn5zlzrTFz2y28ilrHke6Ruk9VOMis+ZzFQH +810ePN6LdMT2Evz5jSDh9eP0UxpyAvNpG+GqVmvFT4S/9+XxWGRsysdxo6p41YoDmnJ /78w== X-Gm-Message-State: AOJu0YwntzeN2qwqXmEY6UHP4Kj1D3n1HRmvie6HYcuqEz9Ljl8wGXhu SIDVakyey4v9quqfGV/vvwsr/A== X-Google-Smtp-Source: AGHT+IFIMVvhNg464qJima4kezuYWuRmRs+hpxgOQnc+URZYC5BvtqpinR7GN44km7chTJtWGj8fDQ== X-Received: by 2002:a7b:c390:0:b0:401:38dc:8918 with SMTP id s16-20020a7bc390000000b0040138dc8918mr481515wmj.24.1693940015869; Tue, 05 Sep 2023 11:53:35 -0700 (PDT) Received: from brgl-uxlite.home ([2a01:cb1d:334:ac00:7a54:5dbc:6d09:48b7]) by smtp.gmail.com with ESMTPSA id 17-20020a05600c249100b003fbc30825fbsm17550010wms.39.2023.09.05.11.53.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 05 Sep 2023 11:53:35 -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 08/21] gpio: acpi: provide acpi_gpio_device_free_interrupts() Date: Tue, 5 Sep 2023 20:52:56 +0200 Message-Id: <20230905185309.131295-9-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> Precedence: bulk X-Mailing-List: timestamp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Bartosz Golaszewski We're moving away from public functions that take struct gpio_chip as argument as the chip - unlike struct gpio_device - is owned by its provider and tied to its lifetime. Provide an alternative to acpi_gpiochip_free_interrupts(). Signed-off-by: Bartosz Golaszewski Reviewed-by: Mika Westerberg --- drivers/gpio/gpiolib-acpi.c | 29 +++++++++++++++++++++++------ include/linux/gpio/driver.h | 12 ++++++++++++ 2 files changed, 35 insertions(+), 6 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index fbda452fb4d6..5633e39396bc 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -558,12 +558,9 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) } EXPORT_SYMBOL_GPL(acpi_gpiochip_request_interrupts); -/** - * acpi_gpiochip_free_interrupts() - Free GPIO ACPI event interrupts. - * @chip: GPIO chip - * - * Free interrupts associated with GPIO ACPI event method for the given - * GPIO chip. +/* + * This function is deprecated, use acpi_gpio_device_free_interrupts() + * instead. */ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { @@ -604,6 +601,26 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) } EXPORT_SYMBOL_GPL(acpi_gpiochip_free_interrupts); +/** + * acpi_gpio_device_free_interrupts() - Free GPIO ACPI event interrupts. + * @chip GPIO device + * + * Free interrupts associated with GPIO ACPI event method for the given + * GPIO device. + */ +void acpi_gpio_device_free_interrupts(struct gpio_device *gdev) +{ + struct gpio_chip *gc; + + /* TODO: protect gdev->chip once SRCU is in place in GPIOLIB. */ + gc = gdev->chip; + if (!gc) + return; + + acpi_gpiochip_free_interrupts(gc); +} +EXPORT_SYMBOL_GPL(acpi_gpio_device_free_interrupts); + int acpi_dev_add_driver_gpios(struct acpi_device *adev, const struct acpi_gpio_mapping *gpios) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index b68b3493b29d..47906bc56b3d 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -835,4 +835,16 @@ static inline struct fwnode_handle *gpiochip_node_get_first(struct device *dev) return NULL; } +/* + * FIXME: Remove this once the only driver that uses it - android tablets - + * becomes a good citizen and stops abusing GPIOLIB. + */ +#ifdef CONFIG_ACPI +void acpi_gpio_device_free_interrupts(struct gpio_device *gdev); +#else +static inline void acpi_gpio_device_free_interrupts(struct gpio_device *gdev) +{ +} +#endif + #endif /* __LINUX_GPIO_DRIVER_H */