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arm64: dts: rockchip: enable automatic fan control on Rock 5B

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This links the PWM fan on Radxa Rock 5B as an active cooling device
managed automatically by the thermal subsystem, with a target SoC
temperature of 65C and a minimum-spin interval from 55C to 65C to
ensure airflow when the system gets warm

Helped-by: Dragan Simic <dsimic@manjaro.org>
Reviewed-by: Dragan Simic <dsimic@manjaro.org>
Signed-off-by: Alexey Charkov <alchark@gmail.com>
Link: https://lore.kernel.org/r/20240617-rk-dts-additions-v5-4-c1f5f3267f1e@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Alexey Charkov 2024-06-17 22:28:54 +04:00 committed by Heiko Stuebner
parent b78f87940a
commit 4a152231b0
1 changed files with 31 additions and 1 deletions
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32
arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
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@ -52,7 +52,7 @@ led_rgb_b {
fan: pwm-fan {
compatible = "pwm-fan";
cooling-levels = <0 95 145 195 255>;
cooling-levels = <0 120 150 180 210 240 255>;
fan-supply = <&vcc5v0_sys>;
pwms = <&pwm1 0 50000 0>;
#cooling-cells = <2>;
@ -286,6 +286,36 @@ i2s0_8ch_p0_0: endpoint {
};
};
&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 {
map1 {
trip = <&package_fan0>;
cooling-device = <&fan THERMAL_NO_LIMIT 1>;
};
map2 {
trip = <&package_fan1>;
cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
};
};
};
&pcie2x1l0 {
pinctrl-names = "default";
pinctrl-0 = <&pcie2_0_rst>;