linux-kernel - Re: [PATCH] arm64: dts: qcom: sc8280xp-crd: fix eDP phy compatible

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Message-ID: <CAA8EJpoPSHfRMgzs69Z-Zk0L8z8_8sveh22pj4ZOAwyAPvesHQ@mail.gmail.com>
Date:   Mon, 16 Oct 2023 11:53:02 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: qcom: sc8280xp-crd: fix eDP phy compatible

On Mon, 16 Oct 2023 at 11:07, Johan Hovold <johan+linaro@...nel.org> wrote:
>
> The sc8280xp Display Port PHYs can be used in either DP or eDP mode and
> this is configured using the devicetree compatible string which defaults
> to DP mode in the SoC dtsi.
>
> Override the default compatible string for the CRD eDP PHY node so that
> the eDP settings are used.
>
> Fixes: 4a883a8d80b5 ("arm64: dts: qcom: sc8280xp-crd: Enable EDP")
> Cc: stable@...r.kernel.org      # 6.3
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---
>  arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> index 772953dc428e..31a2a2d27f4e 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
> @@ -458,6 +458,8 @@ mdss0_dp3_out: endpoint {
>  };
>
>  &mdss0_dp3_phy {
> +       compatible = "qcom,sc8280xp-edp-phy";

Same question here as the one I've sent for Konrad's patch. Is it the
same PHY type, just being repurposed for eDP or is it a different PHY
type?

> +
>         vdda-phy-supply = <&vreg_l6b>;
>         vdda-pll-supply = <&vreg_l3b>;
>
> --
> 2.41.0
>


-- 
With best wishes
Dmitry