leds-lp55xx: use lp55xx_set_brightness()

 lp5521_set_brightness() and lp5523_set_brightness() are replaced with
 common function, lp55xx_set_brightness().
 This function is invoked when the brightness of each LED channel is updated.
 LP5521 and LP5523 have different register address for the brightness control,
 so this work is done by chip specific brightness_work_fn().

 lp5521/5523_led_brightness_work():
 use lp55xx_led and lp55xx_chip data structure.
 use lp55xx write function.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

1 files changed, 4 insertions, 19 deletions

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index ca2f8134909f..43db2429616b 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -163,8 +163,6 @@ static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode);
 static int lp5523_set_engine_mode(struct lp5523_engine *engine, u8 mode);
 static int lp5523_load_program(struct lp5523_engine *engine, const u8 *pattern);
 
-static void lp5523_led_brightness_work(struct work_struct *work);
-
 static int lp5523_write(struct i2c_client *client, u8 reg, u8 value)
 {
         return i2c_smbus_write_byte_data(client, reg, value);
@@ -468,29 +466,15 @@ release_lock:
         return pos;
 }
 
-static void lp5523_set_brightness(struct led_classdev *cdev,
-                             enum led_brightness brightness)
-{
-        struct lp5523_led *led = cdev_to_led(cdev);
-
-        led->brightness = (u8)brightness;
-
-        schedule_work(&led->brightness_work);
-}
-
 static void lp5523_led_brightness_work(struct work_struct *work)
 {
-        struct lp5523_led *led = container_of(work,
-                                              struct lp5523_led,
+        struct lp55xx_led *led = container_of(work, struct lp55xx_led,
                                               brightness_work);
-        struct lp5523_chip *chip = led_to_lp5523(led);
-        struct i2c_client *client = chip->client;
+        struct lp55xx_chip *chip = led->chip;
 
         mutex_lock(&chip->lock);
-
-        lp5523_write(client, LP5523_REG_LED_PWM_BASE + led->chan_nr,
+        lp55xx_write(chip, LP5523_REG_LED_PWM_BASE + led->chan_nr,
                      led->brightness);
-
         mutex_unlock(&chip->lock);
 }
 
@@ -795,6 +779,7 @@ static struct lp55xx_device_config lp5523_cfg = {
         },
         .max_channel  = LP5523_MAX_LEDS,
         .post_init_device   = lp5523_post_init_device,
+        .brightness_work_fn = lp5523_led_brightness_work,
 };
 
 static int lp5523_probe(struct i2c_client *client,