leds-lp5523: add channel name in the platform data

The name of each led channel is configurable.
If the name is NULL, just use the channel id for making the channel name

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <bryan.wu@canonical.com>

drivers/leds/leds-lp5523.c

@@ -846,10 +846,14 @@ static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
 			return -EINVAL;
 		}
 
-		snprintf(name, sizeof(name), "%s:channel%d",
-			pdata->label ?: "lp5523", chan);
+		if (pdata->led_config[chan].name) {
+			led->cdev.name = pdata->led_config[chan].name;
+		} else {
+			snprintf(name, sizeof(name), "%s:channel%d",
+				pdata->label ?: "lp5523", chan);
+			led->cdev.name = name;
+		}
 
-		led->cdev.name = name;
 		led->cdev.brightness_set = lp5523_set_brightness;
 		res = led_classdev_register(dev, &led->cdev);
 		if (res < 0) {