linux-kernel - Re: [PATCH v2 3/3] arm64: dts: qcom: Enable DisplayPort on QCS615 Ride platform

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Message-ID: <47e72a8c-0dc9-4c87-9e1d-b4c60a178a94@oss.qualcomm.com>
Date: Tue, 14 Oct 2025 19:20:02 +0800
From: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
        Rob Clark <robin.clark@....qualcomm.com>,
        Dmitry Baryshkov
 <lumag@...nel.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Jessica Zhang <jessica.zhang@....qualcomm.com>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, fange.zhang@....qualcomm.com,
        yongxing.mou@....qualcomm.com, li.liu@....qualcomm.com
Subject: Re: [PATCH v2 3/3] arm64: dts: qcom: Enable DisplayPort on QCS615
 Ride platform


On 10/14/2025 5:52 PM, Konrad Dybcio wrote:
> On 10/14/25 11:42 AM, Xiangxu Yin via B4 Relay wrote:
>> From: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
>>
>> Add DP connector node and configure MDSS DisplayPort controller for
>> QCS615 Ride platform. Include lane mapping and PHY supply settings
>> to support DP output.
>>
>> Signed-off-by: Xiangxu Yin <xiangxu.yin@....qualcomm.com>
>> ---
> subject: "qcom:" -> "qcom: qcs615-ride:"


Ok, will update subject.


>
> [...]
>
>> +&mdss_dp0_out {
>> +	data-lanes = <3 2 0 1>;
>> +	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000>;
> No 8100?


Yes, according to the HPG description, this PHY only supports up to 5.4 GHz.


> Konrad