linux-kernel - Re: [PATCH v1 6/7] arm64: dts: mt7986: add thermal-zones

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Date:   Mon, 29 May 2023 18:02:58 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Frank Wunderlich <linux@...web.de>,
        linux-mediatek@...ts.infradead.org
Cc:     Frank Wunderlich <frank-w@...lic-files.de>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        "Hui.Liu" <hui.liu@...iatek.com>,
        Zhiyong Tao <zhiyong.tao@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Lala Lin <lala.lin@...iatek.com>, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Daniel Golle <daniel@...rotopia.org>
Subject: Re: [PATCH v1 6/7] arm64: dts: mt7986: add thermal-zones



On 21/04/2023 15:20, Frank Wunderlich wrote:
> From: Daniel Golle <daniel@...rotopia.org>
> 
> Add thermal-zones to mt7986 devicetree.
> 
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> Signed-off-by: Frank Wunderlich <frank-w@...lic-files.de>
> ---
>   arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 40 +++++++++++++++++++++++
>   1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> index a409d5e845c2..845b29a9664a 100644
> --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
> @@ -603,4 +603,44 @@ wifi: wifi@...00000 {
>   			memory-region = <&wmcpu_emi>;
>   		};
>   	};
> +
> +	thermal-zones {
> +		cpu_thermal: cpu-thermal {
> +			polling-delay-passive = <1000>;
> +			polling-delay = <1000>;
> +			thermal-sensors = <&thermal 0>;
> +
> +			trips {
> +				cpu_trip_crit: crit {
> +					temperature = <125000>;
> +					hysteresis = <2000>;
> +					type = "critical";
> +				};
> +
> +				cpu_trip_hot: hot {
> +					temperature = <120000>;
> +					hysteresis = <2000>;
> +					type = "hot";
> +				};

We don't use above two trips. Please drop them for now.

Regards,
Matthias

> +
> +				cpu_trip_active_high: active-high {
> +					temperature = <115000>;
> +					hysteresis = <2000>;
> +					type = "active";
> +				};
> +
> +				cpu_trip_active_low: active-low {
> +					temperature = <85000>;
> +					hysteresis = <2000>;
> +					type = "active";
> +				};
> +
> +				cpu_trip_passive: passive {
> +					temperature = <40000>;
> +					hysteresis = <2000>;
> +					type = "passive";
> +				};
> +			};
> +		};
> +	};
>   };