Re: [PATCH 2/2] arm64: dts: qcom: SM8750: Enable CPUFreq support

[Akhil P Oommen]

On 1/20/2026 3:44 PM, Konrad Dybcio wrote:
> On 1/19/26 8:00 PM, Akhil P Oommen wrote:
>> On 12/11/2025 12:32 AM, Jagadeesh Kona wrote:
>>> Add the cpucp mailbox, sram and SCMI nodes required to enable
>>> the CPUFreq support using the SCMI perf protocol on SM8750 SoCs.
>>>
>>> Signed-off-by: Jagadeesh Kona <jagadeesh.kona@xxxxxxxxxxxxxxxx>
>>
>> Just curious, does this patch enable thermal mitigation for CPU clusters
>> too?
> 
> If nothing changed, we have lets-not-explode type mitigations via LMH,
> but lets-not-burn-the-user would require a skin temp sensor to be
> wired up, which then could be used to enable some cooling action

In some chipsets, I have noticed that the gpu cooling device throttles
GPU to the lowest OPP even with not-so-heavy GPU workloads, making it
unusable-ly slow. My hypothesis was that it was due to unmitigated CPU
temperature tripping up GPU Tsens.

So, I am wondering if there are any additional CPU cooling related
changes required to get a reasonable overall performance under thermal
constraints.

-Akhil.

> 
> Konrad