ARM: dts: at91-sam9x75_curiosity: add phandles to LEDs

In sam9x75 curiosity board, the PIOC 21 also has the PWM functionality,
so the green-led has to be disabled while using PWM.

Hence add phandles to the child nodes of the LEDs to simplify node
references in the DT without impacting the heartbeat and red leds.

Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Reviewed-by: Durai Manickam KR <durai.manickamkr@microchip.com>
Tested-by: Charan Pedumuru <charan.pedumuru@microchip.com>

Author: Dharma Balasubiramani

arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts

@@ -38,22 +38,26 @@
 	leds {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
-		pinctrl-0 = <&pinctrl_led_gpio_default>;
-
-		led-red {
+		led_red: led-red {
+			pinctrl-0 = <&pinctrl_red_led_gpio_default>;
 			label = "red";
 			gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+			status = "okay";
 		};
 
-		led-green {
+		led_green: led-green {
+			pinctrl-0 = <&pinctrl_green_led_gpio_default>;
 			label = "green";
 			gpios = <&pioC 21 GPIO_ACTIVE_HIGH>;
+			status = "okay";
 		};
 
-		led-blue {
+		led_blue: led-blue {
+			pinctrl-0 = <&pinctrl_blue_led_gpio_default>;
 			label = "blue";
 			gpios = <&pioC 20 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
+			status = "okay";
 		};
 	};
 
@@ -341,10 +345,14 @@
 	};
 
 	leds {
-		pinctrl_led_gpio_default: led-gpio-default {
-			atmel,pins = <AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_NONE
-				      AT91_PIOC 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE
-				      AT91_PIOC 20 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+		pinctrl_red_led_gpio_default: red-led-gpio-default {
+			atmel,pins = <AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+		};
+		pinctrl_green_led_gpio_default: green-led-gpio-default {
+			atmel,pins = <AT91_PIOC 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+		};
+		pinctrl_blue_led_gpio_default: blue-led-gpio-default {
+			atmel,pins = <AT91_PIOC 20 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
 		};
 	};