linux-kernel - Re: [PATCH v2] soc: qcom: ubwc: provide no-UBWC configuration

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Message-ID: <242d4174-d01d-4a65-a4a6-1f4d4e2d4fa7@oss.qualcomm.com>
Date: Wed, 23 Jul 2025 15:26:51 +0200
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 Clark <robin.clark@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] soc: qcom: ubwc: provide no-UBWC configuration

On 7/23/25 3:23 PM, Dmitry Baryshkov wrote:
> After the commit 45a2974157d2 ("drm/msm: Use the central UBWC config
> database") the MDSS driver errors out if UBWC database didn't provide it
> with the UBWC configuration. Make UBWC database return zero data for
> MSM8916 / APQ8016, MSM8974 / APQ8074, MSM8226 and MSM8939.
> 
> Fixes: 1924272b9ce1 ("soc: qcom: Add UBWC config provider")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---

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

Konrad