Re: [PATCH 2/2] arm64: dts: qcom: sm7225-fairphone-fp4: Add PM6150L thermals

From: Dmitry Baryshkov
Date: Tue Jan 09 2024 - 05:27:07 EST


On Tue, 9 Jan 2024 at 12:10, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
>
>
> On 1/5/24 15:54, Luca Weiss wrote:
> > Configure the thermals for the PA_THERM1, MSM_THERM, PA_THERM0,
> > RFC_CAM_THERM, CAM_FLASH_THERM and QUIET_THERM thermistors connected to
> > PM6150L.
> >
> > Due to hardware constraints we can only register 4 zones with
> > pm6150l_adc_tm, the other 2 we can register via generic-adc-thermal.
>
> Ugh.. so the ADC can support more inputs than the ADC_TM that was
> designed to ship alongside it can?

Yes. ADC_TM can support monitoring of 8 channels in total.

>
> And that's why the "generic-adc-thermal"-provided zones need to
> be polled?
>
> >
> > The trip points can really only be considered as placeholders, more
> > configuration with cooling etc. can be added later.
> >
> > Signed-off-by: Luca Weiss <luca.weiss@xxxxxxxxxxxxx>
> > ---
> [...]
>
> I've read the sentence above, but..
> > + sdm-skin-thermal {
> > + polling-delay-passive = <1000>;
> > + polling-delay = <5000>;
> > + thermal-sensors = <&msm_therm_sensor>;
> > +
> > + trips {
> > + active-config0 {
> > + temperature = <125000>;
> > + hysteresis = <1000>;
> > + type = "passive";
>
> I don't fancy burnt fingers for dinner!
>
> Konrad
>


--
With best wishes
Dmitry