diff options
| author | Milo(Woogyom) Kim <milo.kim@ti.com> | 2013-02-05 13:09:56 +0400 |
|---|---|---|
| committer | Bryan Wu <cooloney@gmail.com> | 2013-02-07 03:59:27 +0400 |
| commit | e3a700d8aae190e09fb06abe0ddd2e172a682508 (patch) | |
| tree | 3cc952ab61cfb1219f2a43a5e0e738dd2fd7ae10 /drivers/leds/leds-lp5523.c | |
| parent | 48068d5de16c23c256c085b2cd3ff03bec393900 (diff) | |
| download | linux-e3a700d8aae190e09fb06abe0ddd2e172a682508.tar.xz | |
leds-lp55xx: use lp55xx common init function - detect
LP5521/5523 chip detection functions are replaced with lp55xx common function,
lp55xx_detect_device().
Chip dependent address and values are configurable in each driver.
In init function, chip detection is executed.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds/leds-lp5523.c')
| -rw-r--r-- | drivers/leds/leds-lp5523.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c index 00547783db77..b3698e85d51f 100644 --- a/drivers/leds/leds-lp5523.c +++ b/drivers/leds/leds-lp5523.c @@ -181,23 +181,6 @@ static int lp5523_read(struct i2c_client *client, u8 reg, u8 *buf) return 0; } -static int lp5523_detect(struct i2c_client *client) -{ - int ret; - u8 buf; - - ret = lp5523_write(client, LP5523_REG_ENABLE, LP5523_ENABLE); - if (ret) - return ret; - ret = lp5523_read(client, LP5523_REG_ENABLE, &buf); - if (ret) - return ret; - if (buf == 0x40) - return 0; - else - return -ENODEV; -} - static int lp5523_configure(struct i2c_client *client) { int ret = 0; @@ -907,10 +890,6 @@ static int lp5523_init_device(struct lp5523_chip *chip) struct i2c_client *client = chip->client; int ret; - ret = lp5523_detect(client); - if (ret) - goto err; - ret = lp5523_configure(client); if (ret < 0) { dev_err(&client->dev, "error configuring chip\n"); @@ -921,7 +900,6 @@ static int lp5523_init_device(struct lp5523_chip *chip) err_config: lp5523_deinit_device(chip); -err: return ret; } @@ -941,6 +919,10 @@ static struct lp55xx_device_config lp5523_cfg = { .addr = LP5523_REG_RESET, .val = LP5523_RESET, }, + .enable = { + .addr = LP5523_REG_ENABLE, + .val = LP5523_ENABLE, + }, }; static int lp5523_probe(struct i2c_client *client, |