Re: [PATCH] arm64: dts: qcom: sm8550: Update EAS properties

[Konrad Dybcio]

On 1/29/26 12:05 PM, Viresh Kumar wrote:
> On 29-01-26, 12:00, Konrad Dybcio wrote:
>> On 1/28/26 8:11 PM, Aaron Kling via B4 Relay wrote:
>>> It should be noted that the A715 cores seem less efficient than the
>>> A710 cores. Therefore, an average value has been assigned to them,
>>> considering that the A715 and A710 cores share a single cpufreq
>>> domain.
>>
>> Regarding the CPUFreq domain shared across cores with different power
>> characteristics, I think we shouldn't be lying to the OS, rather Linux
>> should be able to deal with it, somehow.
> 
> cpufreq-domain == cpufreq-policy here I guess. All CPUs that change
> their DVFS state together should be part of one policy. Not sure if
> there is something else you were pointing at.

Yes, they change their state together.

The question is whether it's okay for these CPUs to have different
dynamic-power-coefficient values, and whether the EM code won't be
thrown off by that.

Again, they differ because within that shared policy, there's 2
separate kinds of cores (2x Cortex-A715 + 2x Cortex-A710).

Konrad