From a03840a1a9b9945bd25bdefc481ca877bb19bb7b Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Tue, 21 Dec 2021 21:50:32 +0000
Subject: [PATCH] mvebu: puzzle-m901: add LEDs, fan and reset button

Wire up MCU driver for LEDs, fan and temperature sensor, and add
GPIO reset button just like on the M902 also on the Puzzle M901.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3684b494ddd540b811de44497f0d11309bfd1911)
---
 .../boot/dts/marvell/cn9131-puzzle-m901.dts   | 84 +++++++++++++++++++
 1 file changed, 84 insertions(+)

diff --git a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts
index 58e749490a..acf2ed6422 100644
--- a/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts
+++ b/target/linux/mvebu/files/arch/arm64/boot/dts/marvell/cn9131-puzzle-m901.dts
@@ -8,6 +8,7 @@
 #include "cn9130.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "iEi Puzzle-M901";
@@ -31,12 +32,26 @@
 		gpio2 = &cp0_gpio2;
 		gpio3 = &cp1_gpio1;
 		gpio4 = &cp1_gpio2;
+		led-boot = &led_power;
+		led-failsafe = &led_info;
+		led-running = &led_power;
+		led-upgrade = &led_info;
 	};
 
 	memory@00000000 {
 		device_type = "memory";
 		reg = <0x0 0x0 0x0 0x80000000>;
 	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		reset {
+			label = "Reset";
+			linux,code = <KEY_RESTART>;
+			gpios = <&cp0_gpio2 4 GPIO_ACTIVE_LOW>;
+		};
+	};
 };
 
 &uart0 {
@@ -45,6 +60,75 @@
 
 &cp0_uart0 {
 	status = "okay";
+
+	puzzle-mcu {
+		compatible = "iei,wt61p803-puzzle";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		current-speed = <115200>;
+		enable-beep;
+		status = "okay";
+
+		leds {
+			compatible = "iei,wt61p803-puzzle-leds";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			led@0 {
+				reg = <0>;
+				label = "white:network";
+				active-low;
+			};
+
+			led@1 {
+				reg = <1>;
+				label = "green:cloud";
+				active-low;
+			};
+
+			led_info: led@2 {
+				reg = <2>;
+				label = "orange:info";
+				active-low;
+			};
+
+			led_power: led@3 {
+				reg = <3>;
+				label = "yellow:power";
+				active-low;
+				default-state = "on";
+			};
+		};
+
+		hwmon {
+			compatible = "iei,wt61p803-puzzle-hwmon";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			chassis_fan_group0: fan-group@0 {
+				#cooling-cells = <2>;
+				reg = <0x00>;
+				cooling-levels = <64 102 170 230 250>;
+			};
+		};
+	};
+};
+
+&ap_thermal_cpu1 {
+	trips {
+		cpu_active: cpu-active {
+			temperature = <44000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+	};
+	cooling-maps {
+		fan-map {
+			trip = <&cpu_active>;
+			cooling-device = <&chassis_fan_group0 64 THERMAL_NO_LIMIT>;
+		};
+	};
 };
 
 /* on-board eMMC - U9 */
-- 
2.30.2