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authorMilo(Woogyom) Kim <milo.kim@ti.com>2013-02-05 13:09:56 +0400
committerBryan Wu <cooloney@gmail.com>2013-02-07 03:59:27 +0400
commite3a700d8aae190e09fb06abe0ddd2e172a682508 (patch)
tree3cc952ab61cfb1219f2a43a5e0e738dd2fd7ae10 /drivers/leds/leds-lp5523.c
parent48068d5de16c23c256c085b2cd3ff03bec393900 (diff)
downloadlinux-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.c26
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,