linux-kernel - Re: [PATCH 3/7] arm64: dts: qcom: sc8180x: create common zap-shader node

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Message-ID: <CAO9ioeVQe5spxRWBr8sC1xHKktRD-Z9NJS1VDPSTKbWiZRirpA@mail.gmail.com>
Date: Thu, 30 Oct 2025 19:50:07 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>
Cc: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        cros-qcom-dts-watchers@...omium.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/7] arm64: dts: qcom: sc8180x: create common zap-shader node

On Thu, 30 Oct 2025 at 19:25, Bjorn Andersson <andersson@...nel.org> wrote:
>
> On Thu, Oct 30, 2025 at 11:59:00AM +0100, Konrad Dybcio wrote:
> > On 10/30/25 11:58 AM, Konrad Dybcio wrote:
> > > On 10/28/25 10:00 PM, Dmitry Baryshkov wrote:
> > >> In order to reduce duplication, move common GPU memory configuration
> > >> from individual board files to sc8180x.dtsi.
> > >>
> > >> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> > >> ---
> > >
> > > [...]
> > >
> > >> diff --git a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
> > >> index 93de9fe918ebdadf239832db647b84ac9d5a33f6..069953dcad378448800d45e14931efe1fe1a69fc 100644
> > >> --- a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
> > >> +++ b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
> > >> @@ -14,6 +14,8 @@
> > >>  #include "sc8180x.dtsi"
> > >>  #include "sc8180x-pmics.dtsi"
> > >>
> > >> +/delete-node/ &gpu_mem;
>
> I agree with your hmm, seems this line should be dropped(?)
>
> Dmitry, please confirm and I can fix it up as I'm applying the series.
>
> Regards,
> Bjorn
>
> > >> +
> > >>  / {
> > >>    model = "Qualcomm SC8180x Primus";
> > >>    compatible = "qcom,sc8180x-primus", "qcom,sc8180x";
> > >> @@ -444,7 +446,6 @@ &gpu {
> > >>    status = "okay";
> > >>
> > >>    zap-shader {
> > >> -          memory-region = <&gpu_mem>;
> > >
> > > Hm?
> >
> > I "hm"d at the wrong line.. why are we delete-node-ing gpu_mem?

Because it's a part of the sc8180x.dtsi now. There is no need to have it here.



-- 
With best wishes
Dmitry