leds: flash: Add devm_* functions to the flash class (20cdba9d) · Commits · 戴 / test

drivers/leds/led-class-flash.c

+50 −0

Original line number	Diff line number	Diff line
		@@ -327,6 +327,56 @@ void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev)
		}
		EXPORT_SYMBOL_GPL(led_classdev_flash_unregister);

		static void devm_led_classdev_flash_release(struct device dev, void res)
		{
		led_classdev_flash_unregister((struct led_classdev_flash *)res);
		}

		int devm_led_classdev_flash_register_ext(struct device *parent,
		struct led_classdev_flash *fled_cdev,
		struct led_init_data *init_data)
		{
		struct led_classdev_flash **dr;
		int ret;

		dr = devres_alloc(devm_led_classdev_flash_release, sizeof(*dr),
		GFP_KERNEL);
		if (!dr)
		return -ENOMEM;

		ret = led_classdev_flash_register_ext(parent, fled_cdev, init_data);
		if (ret) {
		devres_free(dr);
		return ret;
		}

		*dr = fled_cdev;
		devres_add(parent, dr);

		return 0;
		}
		EXPORT_SYMBOL_GPL(devm_led_classdev_flash_register_ext);

		static int devm_led_classdev_flash_match(struct device *dev,
		void res, void data)
		{
		struct led_classdev_flash **p = res;

		if (WARN_ON(!p \|\| !*p))
		return 0;

		return *p == data;
		}

		void devm_led_classdev_flash_unregister(struct device *dev,
		struct led_classdev_flash *fled_cdev)
		{
		WARN_ON(devres_release(dev,
		devm_led_classdev_flash_release,
		devm_led_classdev_flash_match, fled_cdev));
		}
		EXPORT_SYMBOL_GPL(devm_led_classdev_flash_unregister);

		static void led_clamp_align(struct led_flash_setting *s)
		{
		u32 v, offset;

+14 −0

Original line number	Diff line number	Diff line
		@@ -113,6 +113,20 @@ static inline int led_classdev_flash_register(struct device *parent,
		*/
		void led_classdev_flash_unregister(struct led_classdev_flash *fled_cdev);

		int devm_led_classdev_flash_register_ext(struct device *parent,
		struct led_classdev_flash *fled_cdev,
		struct led_init_data *init_data);


		static inline int devm_led_classdev_flash_register(struct device *parent,
		struct led_classdev_flash *fled_cdev)
		{
		return devm_led_classdev_flash_register_ext(parent, fled_cdev, NULL);
		}

		void devm_led_classdev_flash_unregister(struct device *parent,
		struct led_classdev_flash *fled_cdev);

		/**
		* led_set_flash_strobe - setup flash strobe
		* @fled_cdev: the flash LED to set strobe on