diff options
Diffstat (limited to 'drivers/leds/leds-lp5523.c')
| -rw-r--r-- | drivers/leds/leds-lp5523.c | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index 7f5be8948cd..491ea725bb0 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -896,6 +896,33 @@ static int lp5523_init_led(struct lp5523_led *led, struct device *dev, return 0; } +static int lp5523_init_device(struct lp5523_chip *chip) +{ + struct lp5523_platform_data *pdata = chip->pdata; + struct i2c_client *client = chip->client; + int ret; + + if (pdata->setup_resources) { + ret = pdata->setup_resources(); + if (ret < 0) + return ret; + } + + if (pdata->enable) { + pdata->enable(0); + usleep_range(1000, 2000); /* Keep enable down at least 1ms */ + pdata->enable(1); + usleep_range(1000, 2000); /* 500us abs min. */ + } + + lp5523_write(client, LP5523_REG_RESET, 0xff); + usleep_range(10000, 20000); /* + * Exact value is not available. 10 - 20ms + * appears to be enough for reset. + */ + return lp5523_detect(client); +} + static int lp5523_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -921,25 +948,7 @@ static int lp5523_probe(struct i2c_client *client, chip->pdata = pdata; - if (pdata->setup_resources) { - ret = pdata->setup_resources(); - if (ret < 0) - return ret; - } - - if (pdata->enable) { - pdata->enable(0); - usleep_range(1000, 2000); /* Keep enable down at least 1ms */ - pdata->enable(1); - usleep_range(1000, 2000); /* 500us abs min. */ - } - - lp5523_write(client, LP5523_REG_RESET, 0xff); - usleep_range(10000, 20000); /* - * Exact value is not available. 10 - 20ms - * appears to be enough for reset. - */ - ret = lp5523_detect(client); + ret = lp5523_init_device(chip); if (ret) goto fail1; |