linux-kernel - Re: [PATCH 1/2] arm64: dts: qcom: sm7225-fairphone-fp4: Add PMK8003 thermals

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Date: Wed, 10 Jan 2024 19:48:38 +0100
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Luca Weiss <luca.weiss@...rphone.com>,
 Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>
Cc: ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] arm64: dts: qcom: sm7225-fairphone-fp4: Add PMK8003
 thermals



On 1/5/24 15:54, Luca Weiss wrote:
> Configure the thermals for the XO_THERM thermistor connected to the
> PMK8003 (which is called PMK8350 in software).
> 
> The ADC configuration for PMK8350_ADC7_AMUX_THM1_100K_PU has already
> been added in the past.
> 
> The trip points can really only be considered as placeholders, more
> configuration with cooling etc. can be added later.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>   arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts | 25 +++++++++++++++++++++++
>   1 file changed, 25 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> index ade619805519..b7ccfe4011bb 100644
> --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> @@ -112,6 +112,20 @@ active-config0 {
>   				};
>   			};
>   		};
> +
> +		xo-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pmk8350_adc_tm 0>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "passive";
> +				};
> +			};
> +		};
>   	};
>   };
>   
> @@ -490,6 +504,17 @@ conn-therm@1 {
>   	};
>   };
>   
> +&pmk8350_adc_tm {
> +	status = "okay";
> +
> +	xo-therm@0 {
> +		reg = <0>;
> +		io-channels = <&pmk8350_vadc PMK8350_ADC7_AMUX_THM1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;

My ocd would rather see the boolean property at the end

anyway

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad