leds: ns2: use struct led_init_data when registering

By using struct led_init_data when registering we do not need to parse
`label` DT property. Moreover `label` is deprecated and if it is not
present but `color` and `function` are, LED core will compose a name
from these properties instead.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Simon Guinot <simon.guinot@sequanux.org>
Cc: Simon Guinot <sguinot@lacie.com>
Cc: Vincent Donnefort <vdonnefort@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Pavel Machek <pavel@ucw.cz>

drivers/leds/leds-ns2.c

@@ -170,14 +170,11 @@ ATTRIBUTE_GROUPS(ns2_led);
 static int ns2_led_register(struct device *dev, struct device_node *np,
 			    struct ns2_led *led)
 {
+	struct led_init_data init_data = {};
 	struct ns2_led_modval *modval;
 	enum ns2_led_modes mode;
 	int nmodes, ret, i;
 
-	ret = of_property_read_string(np, "label", &led->cdev.name);
-	if (ret)
-		led->cdev.name = np->name;
-
 	led->cmd = devm_gpiod_get_from_of_node(dev, np, "cmd-gpio", 0,
 					       GPIOD_ASIS, np->name);
 	if (IS_ERR(led->cmd))
@@ -234,7 +231,9 @@ static int ns2_led_register(struct device *dev, struct device_node *np,
 	led->sata = (mode == NS_V2_LED_SATA) ? 1 : 0;
 	led->cdev.brightness = (mode == NS_V2_LED_OFF) ? LED_OFF : LED_FULL;
 
-	ret = devm_led_classdev_register(dev, &led->cdev);
+	init_data.fwnode = of_fwnode_handle(np);
+
+	ret = devm_led_classdev_register_ext(dev, &led->cdev, &init_data);
 	if (ret)
 		dev_err(dev, "Failed to register LED for node %pOF\n", np);