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https://github.com/libretro/Lakka-LibreELEC.git
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65 lines
1.7 KiB
Diff
65 lines
1.7 KiB
Diff
From 84eeb2347773a89ae03b936c4ba36267b6dcb28f Mon Sep 17 00:00:00 2001
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Mon, 30 Jan 2023 05:09:18 +0000
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Subject: [PATCH 105/120] WIP: arm64: dts: meson: radxa-zero2: add pwm-fan
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support
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The A311D on Zero2 needs active cooling and the board includes a header to
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connect a simple fan. Add pwm-fan support with basic thermal properties so
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the fan runs when connected.
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Suggested-by: Yuntian Zhang <yt@radxa.com>
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Signed-off-by: Christian Hewitt <christianshewitt@gmail.com>
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---
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.../dts/amlogic/meson-g12b-radxa-zero2.dts | 27 +++++++++++++++++++
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1 file changed, 27 insertions(+)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts b/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts
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index 9a60c5ec2072..567a443356fe 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts
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+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-radxa-zero2.dts
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@@ -33,6 +33,15 @@ memory@0 {
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reg = <0x0 0x0 0x0 0x80000000>;
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};
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+ fan0: pwm-fan {
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+ compatible = "pwm-fan";
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+ #cooling-cells = <2>;
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+ cooling-min-state = <0>;
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+ cooling-max-state = <4>;
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+ cooling-levels = <0 64 128 192 255>;
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+ pwms = <&pwm_AO_ab 0 40000 0>;
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+ };
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+
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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poll-interval = <100>;
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@@ -286,6 +295,24 @@ &cpu103 {
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clock-latency = <50000>;
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};
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+&cpu_thermal {
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+ cooling-maps {
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+ map0 {
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+ trip = <&cpu_passive>;
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+ cooling-device = <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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+ };
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+ };
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+};
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+
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+&ddr_thermal {
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+ cooling-maps {
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+ map0 {
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+ trip = <&ddr_passive>;
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+ cooling-device = <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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+ };
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+ };
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+};
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+
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&frddr_a {
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status = "okay";
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};
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--
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2.34.1
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