Re: [PATCH] arm64: dts: qcom: x1e80100: Add '#cooling-cells' for CPU nodes

[Konrad Dybcio]

On 12/8/25 6:13 AM, Manivannan Sadhasivam wrote:
> On Sun, Oct 19, 2025 at 07:01:30PM +0300, Dmitry Baryshkov wrote:
>> On Wed, Oct 15, 2025 at 12:27:03PM +0530, Manivannan Sadhasivam wrote:
>>> From: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxxxxxxxx>
>>>
>>> Enable passive cooling for CPUs in the X1E80100 SoC by adding the
>>> '#cooling-cells' property. This will allow the OS to mitigate the CPU
>>> power dissipation with the help of SCMI DVFS.
>>
>> #cooling-cells isn't enough, the devices need to be listed in the
>> thermal maps.
>>
> 
> Not strictly required unless the cooling device and trip points are wired in DT.
> But I don't want to do that yet, and just expose the cooling devices to
> userspace so that I can experiment with something like thermal-daemon.

Rob, Krzysztof,

Would it be an overly ambitious idea to make #cooling-cells required for
CPU nodes? I'd imagine some sort of cpuidle or cpufreq is desired on almost
all platforms, which could be used as a cooling/throttling measure..

Konrad