From: Sjoerd Simons <sjoerd@collabora.com>
Date: Wed, 5 Nov 2025 21:17:57 +0000 (+0100)
Subject: arm64: dts: mediatek: mt7981b-openwrt-one: Enable software leds
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9b2d2beaefcfa17259fdbce16d59d660894147cb;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: mediatek: mt7981b-openwrt-one: Enable software leds

The openwrt has 3 status leds at the front:
* red: Used as failsafe led by openwrt
* white: Used as boot led by openwrt
* green: Used as running/upgrade led by openwrt

On the back each RJ45 jack has the typical amber/green leds. For the WAN
jack this is hardware controlled by the phy, for LAN these are under
software control and enabled by this patch.

Signed-off-by: Sjoerd Simons <sjoerd@collabora.com>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
index 6bb98629f453..2e39e7287730 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-openwrt-one.dts
@@ -3,6 +3,8 @@
 /dts-v1/;
 
 #include "mt7981b.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
 #include "dt-bindings/pinctrl/mt65xx.h"
 
 / {
@@ -21,9 +23,60 @@
 		reg = <0 0x40000000 0 0x40000000>;
 		device_type = "memory";
 	};
+
+	pwm-leds {
+		compatible = "pwm-leds";
+
+		led-0 {
+			color = <LED_COLOR_ID_WHITE>;
+			default-brightness = <0>;
+			function = LED_FUNCTION_STATUS;
+			max-brightness = <255>;
+			pwms = <&pwm 0 10000>;
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_GREEN>;
+			default-brightness = <0>;
+			function = LED_FUNCTION_STATUS;
+			max-brightness = <255>;
+			pwms = <&pwm 1 10000>;
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_STATUS;
+			gpios = <&pio 9 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-1 {
+			color = <LED_COLOR_ID_AMBER>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&pio 34 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "netdev";
+		};
+
+		led-2 {
+			color = <LED_COLOR_ID_GREEN>;
+			function = LED_FUNCTION_LAN;
+			gpios = <&pio 35 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "netdev";
+		};
+	};
 };
 
 &pio {
+	pwm_pins: pwm-pins {
+		mux {
+			function = "pwm";
+			groups = "pwm0_0", "pwm1_1";
+		};
+	};
+
 	spi2_flash_pins: spi2-pins {
 		mux {
 			function = "spi";
@@ -44,6 +97,12 @@
 	};
 };
 
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm_pins>;
+	status = "okay";
+};
+
 &spi2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&spi2_flash_pins>;
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
index f00e5bf63de3..416096b80770 100644
--- a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -94,7 +94,7 @@
 			#clock-cells = <1>;
 		};
 
-		pwm@10048000 {
+		pwm: pwm@10048000 {
 			compatible = "mediatek,mt7981-pwm";
 			reg = <0 0x10048000 0 0x1000>;
 			clocks = <&infracfg CLK_INFRA_PWM_STA>,