linux-kernel - Re: [PATCH v4 2/4] arm64: dts: qcom: sm8650: setup gpu thermal with higher temperatures

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Message-ID: <70863b0e-1189-4190-807a-abe831e09a58@oss.qualcomm.com>
Date: Mon, 3 Feb 2025 14:53:04 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/4] arm64: dts: qcom: sm8650: setup gpu thermal with
 higher temperatures

On 3.02.2025 2:31 PM, Konrad Dybcio wrote:
> On 3.02.2025 2:23 PM, Neil Armstrong wrote:
>> On the SM8650, the dynamic clock and voltage scaling (DCVS) for the GPU
>> is done from the HLOS, but the GPU can achieve a much higher temperature
>> before failing according the reference downstream implementation.
>>
>> Set higher temperatures in the GPU trip points corresponding to
>> the temperatures provided by Qualcomm in the dowstream source, much
>> closer to the junction temperature and with a higher critical
>> temperature trip in the case the HLOS DCVS cannot handle the
>> temperature surge.
>>
>> The tsens MAX_THRESHOLD is set to 120C on those platforms, so set
>> the hot to 110C to leave a chance to HLOS to react and critical to
>> 115C to avoid the monitor thermal shutdown.
>>
>> Fixes: 497624ed5506 ("arm64: dts: qcom: sm8650: Throttle the GPU when overheating")
>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>> ---
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Wrong copypasta, please use this one instead:

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad