63 lines
1.5 KiB
Diff
63 lines
1.5 KiB
Diff
From cd5681e63fb9887bd05d4ef59151d6a6b39c9d33 Mon Sep 17 00:00:00 2001
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From: Alexey Charkov <alchark@gmail.com>
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Date: Mon, 20 Jan 2025 23:22:47 +0400
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Subject: arm64: dts: rockchip: Enable automatic fan control on Radxa Rock 5C
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Add the necessary cooling map to enable the kernel's thermal subsystem
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to manage the fan speed automatically depending on the overall SoC
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package temperature on Radxa Rock 5C
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Signed-off-by: Alexey Charkov <alchark@gmail.com>
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Reviewed-by: Dragan Simic <dsimic@manjaro.org>
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Link: https://lore.kernel.org/r/20250120-rock-5c-fan-v1-2-5fb8446c981b@gmail.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
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+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
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@@ -68,7 +68,7 @@
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};
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};
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- fan {
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+ fan: fan {
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compatible = "pwm-fan";
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#cooling-cells = <2>;
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cooling-levels = <0 24 44 64 128 192 255>;
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@@ -417,6 +417,36 @@
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};
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};
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+&package_thermal {
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+ polling-delay = <1000>;
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+
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+ trips {
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+ package_fan0: package-fan0 {
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+ temperature = <55000>;
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+ hysteresis = <2000>;
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+ type = "active";
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+ };
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+
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+ package_fan1: package-fan1 {
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+ temperature = <65000>;
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+ hysteresis = <2000>;
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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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+ trip = <&package_fan0>;
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+ cooling-device = <&fan THERMAL_NO_LIMIT 1>;
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+ };
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+
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+ map1 {
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+ trip = <&package_fan1>;
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+ cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
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+ };
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+ };
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+};
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+
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&pcie2x1l2 {
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pinctrl-names = "default";
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pinctrl-0 = <&pcie20x1_2_perstn_m0>;
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