1 files changed, 55 insertions, 0 deletions

diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index bcabf2cb949a..1fab1d1c4502 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -63,6 +63,12 @@ static int lp55xx_post_init_device(struct lp55xx_chip *chip)
         return cfg->post_init_device(chip);
 }
 
+static int lp55xx_init_led(struct lp55xx_led *led,
+                        struct lp55xx_chip *chip, int chan)
+{
+        return 0;
+}
+
 int lp55xx_write(struct lp55xx_chip *chip, u8 reg, u8 val)
 {
         return i2c_smbus_write_byte_data(chip->cl, reg, val);
@@ -170,6 +176,55 @@ void lp55xx_deinit_device(struct lp55xx_chip *chip)
 }
 EXPORT_SYMBOL_GPL(lp55xx_deinit_device);
 
+int lp55xx_register_leds(struct lp55xx_led *led, struct lp55xx_chip *chip)
+{
+        struct lp55xx_platform_data *pdata = chip->pdata;
+        struct lp55xx_device_config *cfg = chip->cfg;
+        int num_channels = pdata->num_channels;
+        struct lp55xx_led *each;
+        u8 led_current;
+        int ret;
+        int i;
+
+        if (!cfg->brightness_work_fn) {
+                dev_err(&chip->cl->dev, "empty brightness configuration\n");
+                return -EINVAL;
+        }
+
+        for (i = 0; i < num_channels; i++) {
+
+                /* do not initialize channels that are not connected */
+                if (pdata->led_config[i].led_current == 0)
+                        continue;
+
+                led_current = pdata->led_config[i].led_current;
+                each = led + i;
+                ret = lp55xx_init_led(each, chip, i);
+                if (ret)
+                        goto err_init_led;
+
+                INIT_WORK(&each->brightness_work, cfg->brightness_work_fn);
+
+                chip->num_leds++;
+                each->chip = chip;
+
+                /* setting led current at each channel */
+                if (cfg->set_led_current)
+                        cfg->set_led_current(each, led_current);
+        }
+
+        return 0;
+
+err_init_led:
+        for (i = 0; i < chip->num_leds; i++) {
+                each = led + i;
+                led_classdev_unregister(&each->cdev);
+                flush_work(&each->brightness_work);
+        }
+        return ret;
+}
+EXPORT_SYMBOL_GPL(lp55xx_register_leds);
+
 MODULE_AUTHOR("Milo Kim <milo.kim@ti.com>");
 MODULE_DESCRIPTION("LP55xx Common Driver");
 MODULE_LICENSE("GPL");