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Message-ID: <b85df7d5-01a1-490b-b223-e968a862e9de@oss.qualcomm.com>
Date: Mon, 6 Oct 2025 10:05:25 +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 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: Konrad Dybcio <konradybcio@...il.com>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sdm630: fix gpu_speed_bin size

On 10/6/25 12:16 AM, Dmitry Baryshkov wrote:
> Historically sdm630.dtsi has used 1 byte length for the gpu_speed_bin
> cell, although it spans two bytes (offset 5, size 7 bits). It was being
> accepted by the kernel because before the commit 7a06ef751077 ("nvmem:
> core: fix bit offsets of more than one byte") the kernel didn't have
> length check. After this commit nvmem core rejects QFPROM on sdm630 /
> sdm660, making GPU and USB unusable on those platforms.
> 
> Set the size of the gpu_speed_bin cell to 2 bytes, fixing the parsing
> error.
> 
> Fixes: b190fb010664 ("arm64: dts: qcom: sdm630: Add sdm630 dts file")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
> ---

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

Konrad

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