Re: [PATCH 2/2] arm64: dts: qcom: qcm6490-idp: add display and panel

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On Tue, 16 Jan 2024 at 14:06, Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> wrote:
>
>
>
> On 1/16/24 10:49, Ritesh Kumar wrote:
> > Enable Display Subsystem with Novatek NT36672E Panel
> > on qcm6490 idp platform.
> >
> > Signed-off-by: Ritesh Kumar <quic_riteshk@xxxxxxxxxxx>
> > ---
> >   arch/arm64/boot/dts/qcom/qcm6490-idp.dts | 100 +++++++++++++++++++++++
> >   1 file changed, 100 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> > index 2a6e4907c5ee..efa5252130a1 100644
> > --- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> > +++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
> > @@ -9,6 +9,7 @@
> >   #define PM7250B_SID 8
> >   #define PM7250B_SID1 9
> >
> > +#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
> >   #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> >   #include "sc7280.dtsi"
> >   #include "pm7250b.dtsi"
> > @@ -38,6 +39,25 @@
> >               stdout-path = "serial0:115200n8";
> >       };
> >
> > +     lcd_disp_bias: lcd-disp-bias-regulator {
> > +             compatible = "regulator-fixed";
> > +             regulator-name = "lcd_disp_bias";
> > +             regulator-min-microvolt = <5500000>;
> > +             regulator-max-microvolt = <5500000>;
> > +             gpio = <&pm7250b_gpios 2 GPIO_ACTIVE_HIGH>;
> > +             enable-active-high;
> > +             pinctrl-names = "default";
> > +             pinctrl-0 = <&lcd_disp_bias_en>;
>
> property-n
> property-names
>
> all throughout the patch
>
> > +&gpu {
> > +     status = "disabled";
> > +};
>
> Hm.. generally we disable the GPU in the SoC DT, but that doesn't
> seem to have happened here..
>
> Thinking about it more, is disabling it here necessary? Does it
> not fail gracefully?

Missed this.

I'd say, I don't see a reason to disable it at all. The GPU should be
working on sc7280 / qcm4290.



-- 
With best wishes
Dmitry




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