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

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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>
This commit is contained in:
Milo(Woogyom) Kim 2013-02-05 17:57:02 +09:00 • committed by Bryan Wu
parent 1904f83d56
commit 86eb7748ce
2 changed files with 18 additions and 2 deletions
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10
drivers/leds/leds-lp5521.c
View file

@ -687,6 +687,13 @@ static void lp5521_unregister_sysfs(struct i2c_client *client)
&lp5521_led_attribute_group); &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) static int lp5521_init_device(struct lp5521_chip *chip)
{ {
struct lp5521_platform_data *pdata = chip->pdata; 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. */ usleep_range(1000, 2000); /* 500us abs min. */
} }
lp5521_write(client, LP5521_REG_RESET, 0xff); lp5521_reset_device(chip);
usleep_range(10000, 20000); /* usleep_range(10000, 20000); /*
* Exact value is not available. 10 - 20ms * Exact value is not available. 10 - 20ms
* appears to be enough for reset. * appears to be enough for reset.

10
drivers/leds/leds-lp5523.c
View file

@ -946,6 +946,13 @@ static void lp5523_unregister_leds(struct lp5523_chip *chip)
} }
} }
static void lp5523_reset_device(struct lp5523_chip *chip)
{
struct i2c_client *client = chip->client;
lp5523_write(client, LP5523_REG_RESET, 0xff);
}
static int lp5523_init_device(struct lp5523_chip *chip) static int lp5523_init_device(struct lp5523_chip *chip)
{ {
struct lp5523_platform_data *pdata = chip->pdata; struct lp5523_platform_data *pdata = chip->pdata;
@ -965,7 +972,8 @@ static int lp5523_init_device(struct lp5523_chip *chip)
usleep_range(1000, 2000); /* 500us abs min. */ usleep_range(1000, 2000); /* 500us abs min. */
} }
lp5523_write(client, LP5523_REG_RESET, 0xff); lp5523_reset_device(chip);
usleep_range(10000, 20000); /* usleep_range(10000, 20000); /*
* Exact value is not available. 10 - 20ms * Exact value is not available. 10 - 20ms
* appears to be enough for reset. * appears to be enough for reset.