linux-kernel - Re: [PATCH 14/39] arm64: dts: qcom: sdm630: Add TSENS node

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Date:   Thu, 29 Jul 2021 12:52:49 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Thara Gopinath <thara.gopinath@...aro.org>,
        ~postmarketos/upstreaming@...ts.sr.ht
Cc:     martin.botka@...ainline.org,
        angelogioacchino.delregno@...ainline.org,
        marijn.suijten@...ainline.org, jamipkettunen@...ainline.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 14/39] arm64: dts: qcom: sdm630: Add TSENS node


On 29.07.2021 12:50, Thara Gopinath wrote:
> Hi Konrad,
>
> On 7/28/21 6:25 PM, Konrad Dybcio wrote:
>> This will enable temperature reporting for various SoC
>> components.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
>> ---
>>   .../devicetree/bindings/thermal/qcom-tsens.yaml       |  1 +
>>   arch/arm64/boot/dts/qcom/sdm630.dtsi                  | 11 +++++++++++
>>   2 files changed, 12 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
>> index 4a2eaf28e3fd..d3b9e9b600a2 100644
>> --- a/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
>> +++ b/Documentation/devicetree/bindings/thermal/qcom-tsens.yaml
>> @@ -48,6 +48,7 @@ properties:
>>                 - qcom,sc7180-tsens
>>                 - qcom,sc7280-tsens
>>                 - qcom,sc8180x-tsens
>> +              - qcom,sdm630-tsens
>>                 - qcom,sdm845-tsens
>>                 - qcom,sm8150-tsens
>>                 - qcom,sm8250-tsens
>> diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
>> index 1e54828817d5..7e9c80e35fba 100644
>> --- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
>> @@ -627,6 +627,17 @@ mnoc: interconnect@...5000 {
>>                    <&mmcc AHB_CLK_SRC>;
>>           };
>>   +        tsens: thermal-sensor@...e000 {
>> +            compatible = "qcom,sdm630-tsens", "qcom,tsens-v2";
>> +            reg = <0x010ae000 0x1000>, /* TM */
>> +                  <0x010ad000 0x1000>; /* SROT */
>> +            #qcom,sensors = <12>;
>
> Are all 12 sensors used ? I see that in a later patch "arm64: dts: qcom: sdm630: Add thermal-zones configuration" only 9 are used.

Hi,

if I recall correctly, they all give output but not all of the mappings were documented in the downstream sources and we have no documentation whatsoever :(


Konrad