linux-kernel - Re: [PATCH 6/7] arm64: dts: qcom: sc7180: add gpu_zap

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Message-ID: <9706f744-1cce-4a17-8e99-c29182f3bcb9@oss.qualcomm.com>
Date: Thu, 30 Oct 2025 12:03:09 +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 6/7] arm64: dts: qcom: sc7180: add gpu_zap_shader label

On 10/28/25 10:00 PM, Dmitry Baryshkov wrote:
> Patching existing DT nodes based on full path is error prone and

this is not a full path reference, although DT unfortunately supports it:

&{/soc@...oo@...e/bar@...d/path@...4/pleasedontusethis@...} {}

> generally not recommended. Add a generic zap-shader subnode to the GPU
> node on SC7180, delete it on trogdor and IDP, two platforms which don't
> use ZAP and patch it with the firmware-name on all other platforms by
> using the label.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad