Files
target_linux_rockchip-6.x/patches-6.12/005-03-v6.15-arm64-dts-rockchip-Enable-automatic-fan-control-on-R.patch
2026-01-16 04:36:33 +00:00

63 lines
1.5 KiB
Diff

From cd5681e63fb9887bd05d4ef59151d6a6b39c9d33 Mon Sep 17 00:00:00 2001
From: Alexey Charkov <alchark@gmail.com>
Date: Mon, 20 Jan 2025 23:22:47 +0400
Subject: arm64: dts: rockchip: Enable automatic fan control on Radxa Rock 5C
Add the necessary cooling map to enable the kernel's thermal subsystem
to manage the fan speed automatically depending on the overall SoC
package temperature on Radxa Rock 5C
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Link: https://lore.kernel.org/r/20250120-rock-5c-fan-v1-2-5fb8446c981b@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5c.dts
@@ -68,7 +68,7 @@
};
};
- fan {
+ fan: fan {
compatible = "pwm-fan";
#cooling-cells = <2>;
cooling-levels = <0 24 44 64 128 192 255>;
@@ -417,6 +417,36 @@
};
};
+&package_thermal {
+ polling-delay = <1000>;
+
+ trips {
+ package_fan0: package-fan0 {
+ temperature = <55000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+
+ package_fan1: package-fan1 {
+ temperature = <65000>;
+ hysteresis = <2000>;
+ type = "active";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&package_fan0>;
+ cooling-device = <&fan THERMAL_NO_LIMIT 1>;
+ };
+
+ map1 {
+ trip = <&package_fan1>;
+ cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
+ };
+ };
+};
+
&pcie2x1l2 {
pinctrl-names = "default";
pinctrl-0 = <&pcie20x1_2_perstn_m0>;