arm64: dts: rockchip: add status LED to rock-5a

Describe the Rock 5A status LED in its device tree.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230710165228.105983-8-sebastian.reichel@collabora.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts

@@ -3,6 +3,7 @@
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/pinctrl/rockchip.h>
 #include "rk3588s.dtsi"
 
@@ -19,6 +20,19 @@ chosen {
 		stdout-path = "serial2:1500000n8";
 	};
 
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&io_led>;
+
+		io-led {
+			color = <LED_COLOR_ID_BLUE>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&gpio3 RK_PD5 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
 	vcc12v_dcin: vcc12v-dcin-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "vcc12v_dcin";
@@ -164,6 +178,12 @@ rgmii_phy1: ethernet-phy@1 {
 };
 
 &pinctrl {
+	leds {
+		io_led: io-led {
+			rockchip,pins = <3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
+
 	power {
 		vcc_5v0_en: vcc-5v0-en {
 			rockchip,pins = <4 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;