linux-kernel - Re: [PATCH] arm64: dts: qcom: sc7180: Fix sc7180-qmp-usb3-dp-phy reg sizes

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Message-ID: <CAD=FV=U7KTaK+058+WTOjiZ5Pze30GLPXUS6SCDi_uuxhBX3Ow@mail.gmail.com>
Date:   Wed, 14 Apr 2021 09:06:16 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Stephen Boyd <swboyd@...omium.org>,
        Jeykumar Sankaran <jsanka@...eaurora.org>,
        Chandan Uddaraju <chandanu@...eaurora.org>,
        Vara Reddy <varar@...eaurora.org>,
        Tanmay Shah <tanmay@...eaurora.org>,
        Rob Clark <robdclark@...omium.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: qcom: sc7180: Fix sc7180-qmp-usb3-dp-phy reg sizes

Bjorn,

On Mon, Mar 15, 2021 at 10:39 AM Douglas Anderson <dianders@...omium.org> wrote:
>
> As per Dmitry Baryshkov [1]:
> a) The 2nd "reg" should be 0x3c because "Offset 0x38 is
>    USB3_DP_COM_REVISION_ID3 (not used by the current driver though)."
> b) The 3rd "reg" "is a serdes region and qmp_v3_dp_serdes_tbl contains
>    registers 0x148 and 0x154."
>
> I think because the 3rd "reg" is a serdes region we should just use
> the same size as the 1st "reg"?
>
> [1] https://lore.kernel.org/r/ee5695bb-a603-0dd5-7a7f-695e919b1af1@linaro.org
>
> Cc: Stephen Boyd <swboyd@...omium.org>
> Cc: Jeykumar Sankaran <jsanka@...eaurora.org>
> Cc: Chandan Uddaraju <chandanu@...eaurora.org>
> Cc: Vara Reddy <varar@...eaurora.org>
> Cc: Tanmay Shah <tanmay@...eaurora.org>
> Cc: Rob Clark <robdclark@...omium.org>
> Fixes: 58fd7ae621e7 ("arm64: dts: qcom: sc7180: Update dts for DP phy inside QMP phy")
> Reported-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Douglas Anderson <dianders@...omium.org>
> ---
>
>  arch/arm64/boot/dts/qcom/sc7180.dtsi | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Another wayward patch that got lost. Could you add it to your 5.14
queue? It's not very urgent but it'd be nice to clean it up
eventually.

-Doug