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leds-lp55xx: clean up init function

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lp5521/5523_init_device() are replaced with lp55xx common function,
 lp55xx_init_device().

 Error handler in init_device:
 deinit function are matched with 'err_post_init' section in
 lp55xx_init_device().

 Remove LP5523 engine intialization code:
 Engine functionality is not mandatory but optional.
 Moreover engine initialization is done internally with device reset command.
 Therefore, this code is unnecessary.

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 18:58:35 +09:00 committed by Bryan Wu
parent ffbdccdbba
commit 22ebeb488b
3 changed files with 12 additions and 65 deletions
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22
drivers/leds/leds-lp5521.c
View File

@ -689,26 +689,6 @@ static void lp5521_unregister_sysfs(struct i2c_client *client)
&lp5521_led_attribute_group);
}
static void lp5521_deinit_device(struct lp5521_chip *chip);
static int lp5521_init_device(struct lp5521_chip *chip)
{
struct i2c_client *client = chip->client;
struct lp55xx_chip *temp;
int ret;
ret = lp5521_post_init_device(temp);
if (ret < 0) {
dev_err(&client->dev, "error configuring chip\n");
goto err_config;
}
return 0;
err_config:
lp5521_deinit_device(chip);
return ret;
}
static void lp5521_deinit_device(struct lp5521_chip *chip)
{
struct lp5521_platform_data *pdata = chip->pdata;
@ -860,7 +840,7 @@ static int lp5521_probe(struct i2c_client *client,
i2c_set_clientdata(client, led);
ret = lp5521_init_device(old_chip);
ret = lp55xx_init_device(chip);
if (ret)
goto err_init;

46
drivers/leds/leds-lp5523.c
View File

@ -773,18 +773,6 @@ static void lp5523_set_mode(struct lp5523_engine *engine, u8 mode)
/*--------------------------------------------------------------*/
/* Probe, Attach, Remove */
/*--------------------------------------------------------------*/
static int __init lp5523_init_engine(struct lp5523_engine *engine, int id)
{
if (id < 1 || id > LP5523_ENGINES)
return -1;
engine->id = id;
engine->engine_mask = LP5523_ENG_MASK_BASE >> SHIFT_MASK(id);
engine->prog_page = id - 1;
engine->mux_page = id + 2;
return 0;
}
static int lp5523_init_led(struct lp5523_led *led, struct device *dev,
int chan, struct lp5523_platform_data *pdata,
const char *chip_name)
@ -884,26 +872,6 @@ static void lp5523_unregister_leds(struct lp5523_chip *chip)
}
}
static void lp5523_deinit_device(struct lp5523_chip *chip);
static int lp5523_init_device(struct lp5523_chip *chip)
{
struct i2c_client *client = chip->client;
struct lp55xx_chip *temp;
int ret;
ret = lp5523_post_init_device(temp);
if (ret < 0) {
dev_err(&client->dev, "error configuring chip\n");
goto err_config;
}
return 0;
err_config:
lp5523_deinit_device(chip);
return ret;
}
static void lp5523_deinit_device(struct lp5523_chip *chip)
{
struct lp5523_platform_data *pdata = chip->pdata;
@ -931,7 +899,7 @@ static int lp5523_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct lp5523_chip *old_chip = NULL;
int ret, i;
int ret;
struct lp55xx_chip *chip;
struct lp55xx_led *led;
struct lp55xx_platform_data *pdata = client->dev.platform_data;
@ -958,21 +926,12 @@ static int lp5523_probe(struct i2c_client *client,
i2c_set_clientdata(client, led);
ret = lp5523_init_device(old_chip);
ret = lp55xx_init_device(chip);
if (ret)
goto err_init;
dev_info(&client->dev, "%s Programmable led chip found\n", id->name);
/* Initialize engines */
for (i = 0; i < ARRAY_SIZE(old_chip->engines); i++) {
ret = lp5523_init_engine(&old_chip->engines[i], i + 1);
if (ret) {
dev_err(&client->dev, "error initializing engine\n");
goto fail1;
}
}
ret = lp5523_register_leds(old_chip, id->name);
if (ret)
goto fail2;
@ -985,7 +944,6 @@ static int lp5523_probe(struct i2c_client *client,
return ret;
fail2:
lp5523_unregister_leds(old_chip);
fail1:
lp5523_deinit_device(old_chip);
err_init:
return ret;

9
drivers/leds/leds-lp55xx-common.c
View File

@ -144,9 +144,18 @@ int lp55xx_init_device(struct lp55xx_chip *chip)
/* chip specific initialization */
ret = lp55xx_post_init_device(chip);
if (ret) {
dev_err(dev, "post init device err: %d\n", ret);
goto err_post_init;
}
return 0;
err_post_init:
if (pdata->enable)
pdata->enable(0);
if (pdata->release_resources)
pdata->release_resources();
err:
return ret;
}