linux-kernel - Re: [PATCH 3/4] drm/msm/adreno: Add a modparam to skip GPU

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Message-ID: <zmaphb3douzah5m447naluu7cjrwieb36uznjb7uamblxduira@xhtklqmy22tu>
Date: Tue, 2 Sep 2025 16:02:01 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Cc: Akhil P Oommen <akhilpo@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Jordan Crouse <jordan@...micpenguin.net>,
        Jonathan Marek <jonathan@...ek.ca>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] drm/msm/adreno: Add a modparam to skip GPU

On Tue, Sep 02, 2025 at 02:30:48PM +0200, Konrad Dybcio wrote:
> On 9/2/25 1:50 PM, Akhil P Oommen wrote:
> > During bringup of a new GPU support, it is convenient to have knob to
> > quickly disable GPU, but keep the display support. This helps to
> > fallback to 'kms_swrast' in case of bootup issues due to GPU. Add a
> > modparam to support this.
> 
> I'm not entirely opposed, but slapping a // in front of the compatible
> in the dt works just as well

Which requires rebuilding and reprovisioning

> 
> Konrad

-- 
With best wishes
Dmitry