Re: [PATCH v3] arm64: dts: qcom: x1e78100-thinkpad-t14s: Add thermal zones for PMICs

[Stephan Gerhold <stephan.gerhold@linaro.org>]

On Wed, Oct 21, 2026 at 06:20:55PM +0200, Daniel Lezcano wrote:
> On 10/21/26 10:49, Stephan Gerhold wrote:
> > On Tue, Oct 20, 2026 at 06:08:56PM +0200, Daniel Lezcano wrote:
> > > 
> > > Thanks Stephan for the additional information, that's very helpful.
> > > 
> > > We currently have an urgent thermal issue on this platform, and getting this
> > > thermal mitigation upstream is important to prevent overheating under
> > > sustained workloads.
> > > 
> > > Would it be acceptable to address the sensor naming and description
> > > improvements in a follow-up patch, so that we can get the thermal protection
> > > in place first?
> > > 
> > > Of course, if any of these changes are critical for the correctness of the
> > > thermal mitigation, we should address them now.
> > > 
> > 
> > I have no intention to delay this patch. In fact, since I'm using the
> > latest unmodified stable kernel on my T14s, I'm also suffering from
> > these thermal issues. :-)
> > 
> > On the other hand, we are at the beginning of the merge window and Bjorn
> > is unlikely to queue patches until that ends. The changes that
> > I suggested are purely cosmetic (the names of the thermal zones), there
> > is no need to repeat the thermal validation. The throttling behavior
> > will be identical no matter which name is used for the thermal zones.
> > 
> > IMO we should use the remaining time until the merge window ends to
> > correct the naming to avoid any confusion for people reading the patch
> > once it lands.
> 
> Ok, fair enough
> 
> I propose the following names for the thermal zone:
> 
>  dram-board-thermal
>  gpu-board-thermal
>  fan-board-thermal
>  wwan-board-thermal
>  chg-board-thermal
>  cpu-board-thermal
>  typec-board-thermal
> 
> so we can capture with the name the ones related to the non-on-die sensors
> 
> Sounds good ?

That works for me, I don't have a strong opinion about the naming (maybe
@Konrad has?). I guess people reading this might mistakenly assume that
these refer to separate "sub-boards" in the sense that there is a
"mainboard", a "Type-C board", a "DRAM board", a "GPU board", etc.
But I can't think of a better name either. :-)

Thanks,
Stephan