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Subject[PATCH 06/33] leds-lp55xx: do chip specific configuration on device init
Date

Chip specific function is configured during the device initialization.
So _configure() is moved to each device init function.

If chip configuration gets failed, the device is de-initialized in
each _init_device(), not probe().

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
---
drivers/leds/leds-lp5521.c | 25 +++++++++++++++++--------
drivers/leds/leds-lp5523.c | 26 +++++++++++++++++++-------
2 files changed, 36 insertions(+), 15 deletions(-)

diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index 37075fd..56ea946 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -694,6 +694,7 @@ static void lp5521_reset_device(struct lp5521_chip *chip)
lp5521_write(client, LP5521_REG_RESET, 0xff);
}

+static void lp5521_deinit_device(struct lp5521_chip *chip);
static int lp5521_init_device(struct lp5521_chip *chip)
{
struct lp5521_platform_data *pdata = chip->pdata;
@@ -742,9 +743,22 @@ static int lp5521_init_device(struct lp5521_chip *chip)
usleep_range(10000, 20000);

ret = lp5521_detect(client);
- if (ret)
+ if (ret) {
dev_err(&client->dev, "Chip not found\n");
+ goto err;
+ }
+
+ ret = lp5521_configure(client);
+ if (ret < 0) {
+ dev_err(&client->dev, "error configuring chip\n");
+ goto err_config;
+ }

+ return 0;
+
+err_config:
+ lp5521_deinit_device(chip);
+err:
return ret;
}

@@ -882,16 +896,10 @@ static int __devinit lp5521_probe(struct i2c_client *client,

ret = lp5521_init_device(chip);
if (ret)
- goto fail1;
+ goto err_init;

dev_info(&client->dev, "%s programmable led chip found\n", id->name);

- ret = lp5521_configure(client);
- if (ret < 0) {
- dev_err(&client->dev, "error configuring chip\n");
- goto fail1;
- }
-
ret = lp5521_register_leds(chip);
if (ret)
goto fail2;
@@ -906,6 +914,7 @@ fail2:
lp5521_unregister_leds(chip);
fail1:
lp5521_deinit_device(chip);
+err_init:
return ret;
}

diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index ec21642..a6521ea 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -953,6 +953,7 @@ static void lp5523_reset_device(struct lp5523_chip *chip)
lp5523_write(client, LP5523_REG_RESET, 0xff);
}

+static void lp5523_deinit_device(struct lp5523_chip *chip);
static int lp5523_init_device(struct lp5523_chip *chip)
{
struct lp5523_platform_data *pdata = chip->pdata;
@@ -978,7 +979,22 @@ static int lp5523_init_device(struct lp5523_chip *chip)
* Exact value is not available. 10 - 20ms
* appears to be enough for reset.
*/
- return lp5523_detect(client);
+ ret = lp5523_detect(client);
+ if (ret)
+ goto err;
+
+ ret = lp5523_configure(client);
+ if (ret < 0) {
+ dev_err(&client->dev, "error configuring chip\n");
+ goto err_config;
+ }
+
+ return 0;
+
+err_config:
+ lp5523_deinit_device(chip);
+err:
+ return ret;
}

static void lp5523_deinit_device(struct lp5523_chip *chip)
@@ -1018,7 +1034,7 @@ static int __devinit lp5523_probe(struct i2c_client *client,

ret = lp5523_init_device(chip);
if (ret)
- goto fail1;
+ goto err_init;

dev_info(&client->dev, "%s Programmable led chip found\n", id->name);

@@ -1030,11 +1046,6 @@ static int __devinit lp5523_probe(struct i2c_client *client,
goto fail1;
}
}
- ret = lp5523_configure(client);
- if (ret < 0) {
- dev_err(&client->dev, "error configuring chip\n");
- goto fail1;
- }

ret = lp5523_register_leds(chip, id->name);
if (ret)
@@ -1050,6 +1061,7 @@ fail2:
lp5523_unregister_leds(chip);
fail1:
lp5523_deinit_device(chip);
+err_init:
return ret;
}

--
1.7.9.5

Best Regards,
Milo




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