linux-kernel - Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device nodes

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Message-ID: <32f013e7-ce2a-484b-8575-e98f2d23f59b@oss.qualcomm.com>
Date: Mon, 1 Dec 2025 14:35:44 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@...cinc.com>,
        dmitry.baryshkov@....qualcomm.com, marijn.suijten@...ainline.org,
        swboyd@...omium.org, mripard@...nel.org, abel.vesa@...aro.org,
        andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, robin.clark@....qualcomm.com,
        jessica.zhang@....qualcomm.com, abhinav.kumar@...ux.dev,
        sean@...rly.run, airlied@...il.com, simona@...ll.ch,
        alex.vinarskis@...il.com
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        freedreno@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        quic_rajeevny@...cinc.com, quic_vproddut@...cinc.com,
        quic_riteshk@...cinc.com, quic_amitsi@...cinc.com,
        Mahadevan P <mahadevan.p@....qualcomm.com>
Subject: Re: [PATCH v2 2/3] arm64: dts: qcom: lemans: add mdss1 display device
 nodes

On 11/25/25 11:56 AM, Mani Chandana Ballary Kuntumalla wrote:
> Add devicetree changes to enable second Mobile Display Subsystem (mdss1),
> Display Processing Unit(DPU), Display Port(DP) controllers and eDP PHYs
> on the Qualcomm Lemans platform.
> 
> Signed-off-by: Mahadevan P <mahadevan.p@....qualcomm.com>
> Signed-off-by: Mani Chandana Ballary Kuntumalla <quic_mkuntuma@...cinc.com>
> ---

[...]

> +			mdss1_dp1: displayport-controller@...5c000 {
> +				compatible = "qcom,sa8775p-dp";
> +
> +				reg = <0x0 0x2215c000 0x0 0x104>,
> +				      <0x0 0x2215c200 0x0 0x0c0>,
> +				      <0x0 0x2215d000 0x0 0x770>,
> +				      <0x0 0x2215e000 0x0 0x09c>,
> +				      <0x0 0x2215f000 0x0 0x09c>,
> +				      <0x0 0x22160000 0x0 0x09c>,
> +				      <0x0 0x22161000 0x0 0x09c>,
> +				      <0x0 0x22162000 0x0 0x23c>,
> +				      <0x0 0x22163000 0x0 0x23c>;

The last two regions still happen not to exist

https://lore.kernel.org/all/vc2hen5r7xdaj4nepkoy7pk2jmj4y4hgog5o2nfndrff4yti2m@g46svhsdyy7m/

Konrad