leds-lp55xx: add device reset function in lp5521/5523

 Use explicit each driver function rather than raw command.
 These function will be merged into the lp55xx common driver.

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

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index ec1ffe6316c1..ec89ed641005 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -687,6 +687,13 @@ static void lp5521_unregister_sysfs(struct i2c_client *client)
                                 &lp5521_led_attribute_group);
 }
 
+static void lp5521_reset_device(struct lp5521_chip *chip)
+{
+        struct i2c_client *client = chip->client;
+
+        lp5521_write(client, LP5521_REG_RESET, 0xff);
+}
+
 static int lp5521_init_device(struct lp5521_chip *chip)
 {
         struct lp5521_platform_data *pdata = chip->pdata;
@@ -707,7 +714,8 @@ static int lp5521_init_device(struct lp5521_chip *chip)
                 usleep_range(1000, 2000); /* 500us abs min. */
         }
 
-        lp5521_write(client, LP5521_REG_RESET, 0xff);
+        lp5521_reset_device(chip);
+
         usleep_range(10000, 20000); /*
                                      * Exact value is not available. 10 - 20ms
                                      * appears to be enough for reset.