arm64: dts: rockchip: add LEDs for ROCK 4C+

add support for user LEDs on Radxa ROCK 4C+ board.
Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20220908031726.1307105-2-naoki@radxa.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3399-rock-4c-plus.dts

@@ -6,6 +6,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/leds/common.h>
 #include "rk3399.dtsi"
 #include "rk3399-t-opp.dtsi"
 
@@ -38,6 +39,28 @@ clkin_gmac: external-gmac-clock {
 		#clock-cells = <0>;
 	};
 
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&user_led1 &user_led2>;
+
+		/* USER_LED1 */
+		led-0 {
+			function = LED_FUNCTION_POWER;
+			color = <LED_COLOR_ID_GREEN>;
+			gpios = <&gpio3 RK_PD4 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "default-on";
+		};
+
+		/* USER_LED2 */
+		led-1 {
+			function = LED_FUNCTION_STATUS;
+			color = <LED_COLOR_ID_BLUE>;
+			gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
 	vcc5v0_sys: vcc5v0-sys-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc5v0_sys";
@@ -424,6 +447,16 @@ bt_wake_l: bt-wake-l {
 		};
 	};
 
+	leds {
+		user_led1: user-led1 {
+			rockchip,pins = <3 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+
+		user_led2: user-led2 {
+			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	pmic {
 		pmic_int_l: pmic-int-l {
 			rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;