linux-kernel - [PATCH v2 1/7] leds: gpio: introduce gpio_blink_set

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Date:   Wed, 14 Sep 2016 20:54:12 +0200
From:   Heiner Kallweit <hkallweit1@...il.com>
To:     Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:     "linux-leds@...r.kernel.org" <linux-leds@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH v2 1/7] leds: gpio: introduce gpio_blink_set_t

Introduce a typedef gpio_blink_set_t to improve readability of the code.

Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
---
v2:
- no change
---
 drivers/leds/leds-gpio.c | 6 ++----
 include/linux/leds.h     | 9 ++++++---
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 9b991d4..3599b2e 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -26,8 +26,7 @@ struct gpio_led_data {
 	struct gpio_desc *gpiod;
 	u8 can_sleep;
 	u8 blinking;
-	int (*platform_gpio_blink_set)(struct gpio_desc *desc, int state,
-			unsigned long *delay_on, unsigned long *delay_off);
+	gpio_blink_set_t platform_gpio_blink_set;
 };
 
 static void gpio_led_set(struct led_classdev *led_cdev,
@@ -74,8 +73,7 @@ static int gpio_blink_set(struct led_classdev *led_cdev,
 
 static int create_gpio_led(const struct gpio_led *template,
 	struct gpio_led_data *led_dat, struct device *parent,
-	int (*blink_set)(struct gpio_desc *, int, unsigned long *,
-			 unsigned long *))
+	gpio_blink_set_t blink_set)
 {
 	int ret, state;
 
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 8a3b5d2..ddfcb2d 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -359,6 +359,11 @@ struct led_platform_data {
 	struct led_info	*leds;
 };
 
+struct gpio_desc;
+typedef int (*gpio_blink_set_t)(struct gpio_desc *desc, int state,
+				unsigned long *delay_on,
+				unsigned long *delay_off);
+
 /* For the leds-gpio driver */
 struct gpio_led {
 	const char *name;
@@ -382,9 +387,7 @@ struct gpio_led_platform_data {
 #define GPIO_LED_NO_BLINK_LOW	0	/* No blink GPIO state low */
 #define GPIO_LED_NO_BLINK_HIGH	1	/* No blink GPIO state high */
 #define GPIO_LED_BLINK		2	/* Please, blink */
-	int		(*gpio_blink_set)(struct gpio_desc *desc, int state,
-					unsigned long *delay_on,
-					unsigned long *delay_off);
+	gpio_blink_set_t	gpio_blink_set;
 };
 
 #ifdef CONFIG_NEW_LEDS
-- 
2.9.2