89 lines
2.4 KiB
Diff
89 lines
2.4 KiB
Diff
From 2cf6db15ecd5d1d96158c5bba5543ba38f8387f7 Mon Sep 17 00:00:00 2001
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From: Igor Pecovnik <igor.pecovnik@gmail.com>
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Date: Tue, 4 Aug 2020 23:20:03 +0200
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Subject: [PATCH] Add fan support to Odroid N2/plus
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Signed-off-by: Igor Pecovnik <igor.pecovnik@gmail.com>
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---
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.../boot/dts/amlogic/meson-g12b-odroid-n2.dts | 36 +++++++++++++++++++
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1 file changed, 36 insertions(+)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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index 65df5fb49..50bfb0dce 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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@@ -2,6 +2,7 @@
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/*
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* Copyright (c) 2019 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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+ * Changed: Igor Pecovnik <igor@armbian.com>
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*/
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/dts-v1/;
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@@ -10,6 +11,7 @@
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/gpio/meson-g12a-gpio.h>
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#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
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+#include <dt-bindings/pwm/pwm.h>
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/ {
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compatible = "hardkernel,odroid-n2", "amlogic,s922x", "amlogic,g12b";
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@@ -27,6 +29,22 @@ chosen {
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stdout-path = "serial0:115200n8";
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};
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+ pwmgpio:pwmgpio {
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+ compatible = "pwm-gpio";
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+ #pwm-cells = <3>;
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+ pwm-gpios = <&gpio_ao GPIOAO_10 GPIO_ACTIVE_HIGH>;
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+ status = "okay";
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+ };
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+
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+ pwmfan:pwm-fan {
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+ compatible = "pwm-fan";
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+ pwms = <&pwmgpio 0 40000 PWM_POLARITY_INVERTED>;
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+ cooling-min-state = <0>;
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+ cooling-max-state = <3>;
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+ #cooling-cells = <2>;
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+ cooling-levels = <0 120 170 220>;
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+ };
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+
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memory@0 {
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device_type = "memory";
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reg = <0x0 0x0 0x0 0x40000000>;
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@@ -342,6 +360,16 @@ cpu_passive: cpu-passive {
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hysteresis = <2000>; /* millicelsius */
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type = "passive";
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};
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+ fan_0: trip-point@0 {
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+ temperature = <65000>;
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+ hysteresis = <5000>;
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+ type = "active";
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+ };
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+ fan_1: trip-point@1 {
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+ temperature = <75000>;
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+ hysteresis = <5000>;
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+ type = "active";
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+ };
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};
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cooling-maps {
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cpufreq_map0 {
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@@ -356,6 +384,14 @@ cpufreq_map1 {
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<&cpu102 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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<&cpu103 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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};
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+ fan_cooling_map0 {
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+ trip = <&fan_0>;
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+ cooling-device = <&pwmfan THERMAL_NO_LIMIT 2>;
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+ };
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+ fan_cooling_map1 {
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+ trip = <&fan_1>;
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+ cooling-device = <&pwmfan 2 THERMAL_NO_LIMIT>;
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+ };
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};
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};
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--
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Created with Armbian build tools https://github.com/armbian/build
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