arm64: dts: rockchip: add hdd leds to Qnap-TS433

Add the 4 gpio-controlled LEDs to the Qnap-TS433.

They are meant for individual disk activitivy, but I haven't found a
way for how to connect them to their individual sata slot yet.

Tested-by: Uwe Kleine-König <ukleinek@debian.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20240723195538.1133436-9-heiko@sntech.de

[ upstream commit: ea91aabf18bcad6f5eceae6848ea6570ea61f126 ]

(cherry picked from commit 5a11b1bb40ac7b39e04077c045c3e3409fa352e2)
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts
index 8be3625..abeb00a 100644
--- a/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts
+++ b/dts/upstream/src/arm64/rockchip/rk3568-qnap-ts433.dts
@@ -6,6 +6,7 @@
 
 /dts-v1/;
 
+#include <dt-bindings/leds/common.h>
 #include <dt-bindings/gpio/gpio.h>
 #include "rk3568.dtsi"
 
@@ -23,6 +24,46 @@
 		stdout-path = "serial2:115200n8";
 	};
 
+	leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_DISK;
+			gpios = <&gpio1 RK_PD5 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "disk-activity";
+			pinctrl-names = "default";
+			pinctrl-0 = <&hdd1_led_pin>;
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_DISK;
+			gpios = <&gpio1 RK_PD6 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "disk-activity";
+			pinctrl-names = "default";
+			pinctrl-0 = <&hdd2_led_pin>;
+		};
+
+		led-2 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_DISK;
+			gpios = <&gpio1 RK_PD7 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "disk-activity";
+			pinctrl-names = "default";
+			pinctrl-0 = <&hdd3_led_pin>;
+		};
+
+		led-3 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_DISK;
+			gpios = <&gpio2 RK_PA0 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "disk-activity";
+			pinctrl-names = "default";
+			pinctrl-0 = <&hdd4_led_pin>;
+		};
+	};
+
 	dc_12v: regulator-dc-12v {
 		compatible = "regulator-fixed";
 		regulator-name = "dc_12v";
@@ -161,6 +202,24 @@
 };
 
 &pinctrl {
+	leds {
+		hdd1_led_pin: hdd1-led-pin {
+			rockchip,pins = <1 RK_PD5 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		hdd2_led_pin: hdd2-led-pin {
+			rockchip,pins = <1 RK_PD6 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		hdd3_led_pin: hdd3-led-pin {
+			rockchip,pins = <1 RK_PD7 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+
+		hdd4_led_pin: hdd4_led-pin {
+			rockchip,pins = <2 RK_PA0 RK_FUNC_GPIO &pcfg_pull_up>;
+		};
+	};
+
 	usb {
 		vcc5v0_host_en: vcc5v0-host-en {
 			rockchip,pins = <0 RK_PA6 RK_FUNC_GPIO &pcfg_pull_none>;