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 <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

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;
 }