Re: [PATCH] arm64: dts: qcom: sc7180-trogdor: Delete ADC config for unused thermistors

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On Thu, Sep 02, 2021 at 05:20:43PM -0700, Stephen Boyd wrote:
> Quoting Matthias Kaehlcke (2021-09-02 15:47:44)
> > The charger thermistor on Lazor, CoachZ rev1 and Pompom rev1+2 is
> > either the wrong part or not stuffed at all, the same is true for
> > the skin temperature thermistor on CoachZ rev1. The corresponding
> > thermal zones are already disabled for these devices, in addition
> > delete the ADC nodes of the thermistors.
> >
> > For Lazor and CoachZ rev1 also disable the PM6150 ADC thermal
> > monitor since there are no other temperatures to monitor.
> >
> > Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
> > ---
> >
> >  .../arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts | 12 ++++++++++++
> >  arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi   | 10 ++++++++++
> >  .../arm64/boot/dts/qcom/sc7180-trogdor-pompom-r1.dts |  8 ++++++++
> >  .../arm64/boot/dts/qcom/sc7180-trogdor-pompom-r2.dts |  8 ++++++++
> >  4 files changed, 38 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
> > index 21b516e0694a..edfcd47e1a00 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
> > +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
> > @@ -23,6 +23,18 @@ &charger_thermal {
> >         status = "disabled";
> >  };
> >
> > +&pm6150_adc {
> > +       /delete-node/ skin-temp-thermistor@4e;
> > +       /delete-node/ charger-thermistor@4f;
> 
> Is there any other child node? I only see two, unless I missed
> something. In which case the whole node can be disabled?

Right, the ADC itself can also be disabled in this case.

> 
> > +};
> > +
> > +&pm6150_adc_tm {
> > +       status = "disabled";
> > +
> > +       /delete-node/ charger-thermistor@0;
> > +       /delete-node/ skin-temp-thermistor@1;
> > +};
> > +
> >  /*
> >   * CoachZ rev1 is stuffed with a 47k NTC as thermistor for skin temperature,
> >   * which currently is not supported by the PM6150 ADC driver. Disable the
> > diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
> > index 00535aaa43c9..57f7b19f83b0 100644
> > --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
> > @@ -54,6 +54,16 @@ &panel {
> >         compatible = "boe,nv133fhm-n62";
> >  };
> >
> > +&pm6150_adc {
> > +       /delete-node/ charger-thermistor@4f;
> 
> Same question here.

Yes, the ADC can be disabled here too.



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