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SubjectRe: [PATCH 3/4] arm64: dts: rockchip: enable temperature driven fan control on Rock 5B
From
On 24/01/2024 21:30, Alexey Charkov wrote:
> This enables thermal monitoring on Radxa Rock 5B and links the PWM
> fan as an active cooling device managed automatically by the thermal
> subsystem, with a target SoC temperature of 55C
>
> Signed-off-by: Alexey Charkov <alchark@gmail.com>

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>

> ---
> arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts | 25 ++++++++++++++++++++++++-
> 1 file changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> index 9b7bf6cec8bd..c4c94e0b6163 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
> @@ -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>;
> @@ -180,6 +180,25 @@ &cpu_l3 {
> cpu-supply = <&vdd_cpu_lit_s0>;
> };
>
> +&package_thermal {
> + polling-delay = <1000>;
> +
> + trips {
> + package_fan: package-fan {
> + temperature = <55000>;
> + hysteresis = <2000>;
> + type = "active";
> + };
> + };
> +
> + cooling-maps {
> + map-fan {
> + trip = <&package_fan>;
> + cooling-device = <&fan THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> +};
> +
> &i2c0 {
> pinctrl-names = "default";
> pinctrl-0 = <&i2c0m2_xfer>;
> @@ -738,6 +757,10 @@ regulator-state-mem {
> };
> };
>
> +&tsadc {
> + status = "okay";
> +};
> +
> &uart2 {
> pinctrl-0 = <&uart2m0_xfer>;
> status = "okay";
>

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