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

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Message-ID: <c62a7f9d-6984-41c0-88c5-1d6c40d411dd@oss.qualcomm.com>
Date: Thu, 30 Oct 2025 11:59:00 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
        Bjorn Andersson <andersson@...nel.org>,
        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
Cc: 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 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;
>> +
>>  / {
>>  	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?

Konrad