67 lines
2.0 KiB
Diff
67 lines
2.0 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Stefan Agner <stefan@agner.ch>
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Date: Mon, 11 Jan 2021 15:53:55 +0100
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Subject: arm64: dts: meson: g12b: odroid-n2: add fan as cooling device
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Add the GPIO fan as a cooling device for the CPU thermal zone. Since we
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have only full fan speed available with this, set the tripping point to
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30 degrees Celsius.
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Signed-off-by: Stefan Agner <stefan@agner.ch>
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---
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arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 38 ++++++++++
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1 file changed, 38 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 1365f2767855..33323f119406 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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@@ -377,6 +377,44 @@ &clkc_audio {
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status = "okay";
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};
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+&cpu_thermal {
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+ trips {
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+ cpu_warm: cpu_warm {
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+ hysteresis = <5000>;
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+ temperature = <30000>;
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+ type = "active";
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+ };
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+ };
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+
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+ cooling-maps {
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+ map0 {
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+ cooling-device =
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+ <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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+ trip = <&cpu_warm>;
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+ };
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+ map1 {
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+ trip = <&cpu_passive>;
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+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu100 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu101 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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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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+ <&fan0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
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+ };
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+ map2 {
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+ trip = <&cpu_hot>;
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+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu100 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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+ <&cpu101 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
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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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+ <&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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&cpu0 {
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cpu-supply = <&vddcpu_b>;
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operating-points-v2 = <&cpu_opp_table_0>;
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--
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Armbian
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