Re: [PATCH v5 2/9] arm64: dts: allwinner: h6: Add thermal trip points/cooling map
From: OndÅej Jirman
Date: Mon Apr 20 2020 - 09:46:07 EST
Hi,
On Mon, Apr 20, 2020 at 03:00:14PM +0200, Clément Péron wrote:
> From: Ondrej Jirman <megous@xxxxxxxxxx>
>
> This enables passive cooling by down-regulating CPU voltage
> and frequency.
Does this not produce a lot of warnings for you during compilation?
regards,
o.
> Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
> Signed-off-by: Clément Péron <peron.clem@xxxxxxxxx>
> ---
> arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 24 ++++++++++++++++++++
> 1 file changed, 24 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> index 370e77b86fe1..60da1627772b 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> @@ -964,6 +964,30 @@
> polling-delay-passive = <0>;
> polling-delay = <0>;
> thermal-sensors = <&ths 0>;
> +
> + trips {
> + cpu_alert: cpu-alert {
> + temperature = <85000>;
> + hysteresis = <2000>;
> + type = "passive";
> + };
> +
> + cpu-crit {
> + temperature = <100000>;
> + hysteresis = <0>;
> + type = "critical";
> + };
> + };
> +
> + cooling-maps {
> + map0 {
> + trip = <&cpu_alert>;
> + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> + <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> + };
> + };
> };
>
> gpu-thermal {
> --
> 2.20.1
>