linux-kernel - Re: [v7,2/3] arm64: dts: mt8183: Configure CPU cooling

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Date:   Mon, 29 Mar 2021 19:12:10 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Michael Kao <michael.kao@...iatek.com>, fan.chen@...iatek.com,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        linux-pm@...r.kernel.org, srv_heupstream@...iatek.com
Cc:     Eduardo Valentin <edubezval@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>, hsinyi@...omium.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        Matthias Kaehlcke <mka@...omium.org>
Subject: Re: [v7,2/3] arm64: dts: mt8183: Configure CPU cooling



On 16/03/2021 08:01, Michael Kao wrote:
> From: Matthias Kaehlcke <mka@...omium.org>
> 
> Add two passive trip points at 68°C and 80°C for the CPU temperature.
> 
> Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
> Signed-off-by: Michael Kao <michael.kao@...iatek.com>
> Tested-by: Hsin-Yi Wang <hsinyi@...omium.org>

Applied to v5.12-next/dts64

Thanks.
Matthias



> ---
>  arch/arm64/boot/dts/mediatek/mt8183.dtsi | 56 ++++++++++++++++++++++++
>  1 file changed, 56 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index d3550af06408..1ad0a1d55d53 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -13,6 +13,7 @@
>  #include <dt-bindings/power/mt8183-power.h>
>  #include <dt-bindings/reset-controller/mt8183-resets.h>
>  #include <dt-bindings/phy/phy.h>
> +#include <dt-bindings/thermal/thermal.h>
>  #include "mt8183-pinfunc.h"
>  
>  / {
> @@ -678,6 +679,61 @@
>  				polling-delay = <500>;
>  				thermal-sensors = <&thermal 0>;
>  				sustainable-power = <5000>;
> +
> +				trips {
> +					threshold: trip-point@0 {
> +						temperature = <68000>;
> +						hysteresis = <2000>;
> +						type = "passive";
> +					};
> +
> +					target: trip-point@1 {
> +						temperature = <80000>;
> +						hysteresis = <2000>;
> +						type = "passive";
> +					};
> +
> +					cpu_crit: cpu-crit {
> +						temperature = <115000>;
> +						hysteresis = <2000>;
> +						type = "critical";
> +					};
> +				};
> +
> +				cooling-maps {
> +					map0 {
> +						trip = <&target>;
> +						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>;
> +						contribution = <3072>;
> +					};
> +					map1 {
> +						trip = <&target>;
> +						cooling-device = <&cpu4
> +							THERMAL_NO_LIMIT
> +							THERMAL_NO_LIMIT>,
> +								 <&cpu5
> +							THERMAL_NO_LIMIT
> +							THERMAL_NO_LIMIT>,
> +								 <&cpu6
> +							THERMAL_NO_LIMIT
> +							THERMAL_NO_LIMIT>,
> +								 <&cpu7
> +							THERMAL_NO_LIMIT
> +							THERMAL_NO_LIMIT>;
> +						contribution = <1024>;
> +					};
> +				};
>  			};
>  
>  			/* The tzts1 ~ tzts6 don't need to polling */
>