From f6c64c6fc8d793b414446f1a655a37b7bfce68e3 Mon Sep 17 00:00:00 2001 From: "Milo(Woogyom) Kim" Date: Tue, 5 Feb 2013 17:58:01 +0900 Subject: [PATCH] leds-lp55xx: do chip specific configuration on device init Chip specific function is configured when the device is initialized. 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(). For compile error fix, function type declarations are added. Signed-off-by: Milo(Woogyom) Kim Signed-off-by: Bryan Wu --- drivers/leds/leds-lp5521.c | 26 +++++++++++++++++--------- drivers/leds/leds-lp5523.c | 26 +++++++++++++++++++------- 2 files changed, 36 insertions(+), 16 deletions(-) diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c index ec89ed641005..e042a094a07f 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 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; @@ -904,8 +912,8 @@ static int lp5521_probe(struct i2c_client *client, return ret; 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 cac492b0abf3..fefe27c3f377 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 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 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; }