4 files changed, 63 insertions, 28 deletions

diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index 124ce80fa115..e1f1dfcd1547 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -98,6 +98,9 @@
 /* Pattern Mode */
 #define PATTERN_OFF     0
 
+/* Reset register value */
+#define LP5521_RESET                    0xFF
+
 struct lp5521_engine {
         int             id;
         u8              mode;
@@ -709,26 +712,12 @@ static void lp5521_unregister_sysfs(struct i2c_client *client)
                                 &lp5521_led_attribute_group);
 }
 
-static void lp5521_reset_device(struct lp5521_chip *chip)
-{
-        struct i2c_client *client = chip->client;
-
-        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 i2c_client *client = chip->client;
         int ret;
 
-        lp5521_reset_device(chip);
-
-        usleep_range(10000, 20000); /*
-                                     * Exact value is not available. 10 - 20ms
-                                     * appears to be enough for reset.
-                                     */
-
         ret = lp5521_detect(client);
         if (ret) {
                 dev_err(&client->dev, "Chip not found\n");
@@ -856,6 +845,14 @@ static void lp5521_unregister_leds(struct lp5521_chip *chip)
         }
 }
 
+/* Chip specific configurations */
+static struct lp55xx_device_config lp5521_cfg = {
+        .reset = {
+                .addr = LP5521_REG_RESET,
+                .val  = LP5521_RESET,
+        },
+};
+
 static int lp5521_probe(struct i2c_client *client,
                         const struct i2c_device_id *id)
 {
@@ -881,6 +878,7 @@ static int lp5521_probe(struct i2c_client *client,
 
         chip->cl = client;
         chip->pdata = pdata;
+        chip->cfg = &lp5521_cfg;
 
         mutex_init(&chip->lock);
 
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 8e602047ce35..00547783db77 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -87,6 +87,7 @@
 #define LP5523_AUTO_CLK                 0x02
 #define LP5523_EN_LEDTEST               0x80
 #define LP5523_LEDTEST_DONE             0x80
+#define LP5523_RESET                    0xFF
 
 #define LP5523_DEFAULT_CURRENT          50 /* microAmps */
 #define LP5523_PROGRAM_LENGTH           32 /* in bytes */
@@ -900,25 +901,12 @@ static void lp5523_unregister_leds(struct lp5523_chip *chip)
         }
 }
 
-static void lp5523_reset_device(struct lp5523_chip *chip)
-{
-        struct i2c_client *client = chip->client;
-
-        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 i2c_client *client = chip->client;
         int ret;
 
-        lp5523_reset_device(chip);
-
-        usleep_range(10000, 20000); /*
-                                     * Exact value is not available. 10 - 20ms
-                                     * appears to be enough for reset.
-                                     */
         ret = lp5523_detect(client);
         if (ret)
                 goto err;
@@ -947,6 +935,14 @@ static void lp5523_deinit_device(struct lp5523_chip *chip)
                 pdata->release_resources();
 }
 
+/* Chip specific configurations */
+static struct lp55xx_device_config lp5523_cfg = {
+        .reset = {
+                .addr = LP5523_REG_RESET,
+                .val  = LP5523_RESET,
+        },
+};
+
 static int lp5523_probe(struct i2c_client *client,
                         const struct i2c_device_id *id)
 {
@@ -972,6 +968,7 @@ static int lp5523_probe(struct i2c_client *client,
 
         chip->cl = client;
         chip->pdata = pdata;
+        chip->cfg = &lp5523_cfg;
 
         mutex_init(&chip->lock);
 
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 05a854c0d9b2..bbf2bbf03807 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -20,6 +20,16 @@
 
 #include "leds-lp55xx-common.h"
 
+static void lp55xx_reset_device(struct lp55xx_chip *chip)
+{
+        struct lp55xx_device_config *cfg = chip->cfg;
+        u8 addr = cfg->reset.addr;
+        u8 val  = cfg->reset.val;
+
+        /* no error checking here because no ACK from the device after reset */
+        lp55xx_write(chip, addr, val);
+}
+
 int lp55xx_write(struct lp55xx_chip *chip, u8 reg, u8 val)
 {
         return i2c_smbus_write_byte_data(chip->cl, reg, val);
@@ -58,14 +68,16 @@ EXPORT_SYMBOL_GPL(lp55xx_update_bits);
 int lp55xx_init_device(struct lp55xx_chip *chip)
 {
         struct lp55xx_platform_data *pdata;
+        struct lp55xx_device_config *cfg;
         struct device *dev = &chip->cl->dev;
         int ret = 0;
 
         WARN_ON(!chip);
 
         pdata = chip->pdata;
+        cfg = chip->cfg;
 
-        if (!pdata)
+        if (!pdata || !cfg)
                 return -EINVAL;
 
         if (pdata->setup_resources) {
@@ -83,6 +95,14 @@ int lp55xx_init_device(struct lp55xx_chip *chip)
                 usleep_range(1000, 2000); /* 500us abs min. */
         }
 
+        lp55xx_reset_device(chip);
+
+        /*
+         * Exact value is not available. 10 - 20ms
+         * appears to be enough for reset.
+         */
+        usleep_range(10000, 20000);
+
 err:
         return ret;
 }
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
index 09d1882ce58e..a73ee0b9a0bd 100644
--- a/drivers/leds/leds-lp55xx-common.h
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -19,17 +19,37 @@ struct lp55xx_led;
 struct lp55xx_chip;
 
 /*
+ * struct lp55xx_reg
+ * @addr : Register address
+ * @val  : Register value
+ */
+struct lp55xx_reg {
+        u8 addr;
+        u8 val;
+};
+
+/*
+ * struct lp55xx_device_config
+ * @reset              : Chip specific reset command
+ */
+struct lp55xx_device_config {
+        const struct lp55xx_reg reset;
+};
+
+/*
  * struct lp55xx_chip
  * @cl         : I2C communication for access registers
  * @pdata      : Platform specific data
  * @lock       : Lock for user-space interface
  * @num_leds   : Number of registered LEDs
+ * @cfg        : Device specific configuration data
  */
 struct lp55xx_chip {
         struct i2c_client *cl;
         struct lp55xx_platform_data *pdata;
         struct mutex lock;      /* lock for user-space interface */
         int num_leds;
+        struct lp55xx_device_config *cfg;
 };
 
 /*