linux-kernel - Re: [PATCH v4 2/2] arm64: dts: qcom: sa8775p-ride: Enable Display Port

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Message-ID: <0eaa951b-5eed-44eb-95d8-8220bc6c0ca8@oss.qualcomm.com>
Date: Fri, 22 Nov 2024 14:05:57 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Bjorn Andersson <bjorn.andersson@....qualcomm.com>
Cc: andersson@...nel.org, konradybcio@...nel.org, robh@...nel.org,
        krzk+dt@...nel.org, conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        quic_riteshk@...cinc.com, quic_vproddut@...cinc.com,
        quic_abhinavk@...cinc.com
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: sa8775p-ride: Enable Display
 Port

On 20.11.2024 12:53 PM, Soutrik Mukhopadhyay wrote:
> 
> On 11/20/2024 5:13 PM, Dmitry Baryshkov wrote:
>> On Wed, Nov 20, 2024 at 05:05:50PM +0530, Soutrik Mukhopadhyay wrote:
>> > > On 11/20/2024 4:42 PM, Dmitry Baryshkov wrote:
>> > > On Wed, Nov 20, 2024 at 04:29:54PM +0530, Soutrik Mukhopadhyay wrote:
>> > > > Enable DPTX0 and DPTX1 along with their corresponding PHYs for
>> > > > sa8775p-ride platform.
>> > > > > Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.com>
>> > > > ---
>> > > >  arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi | 80 ++++++++++++++++++++++
>> > > >  1 file changed, 80 insertions(+)
>> > > > > diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
>> > > b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
>> > > > index adb71aeff339..4847e4942386 100644
>> > > > --- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
>> > > > +++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
>> > > > @@ -27,6 +27,30 @@
>> > > >      chosen {
>> > > >          stdout-path = "serial0:115200n8";
>> > > >      };
>> > > > +
>> > > > +    dp0-connector {
>> > > > +        compatible = "dp-connector";
>> > > > +        label = "DP0";
>> > > > > Thundercomm's SA8775p RIDE platform doesn't show such a connector. At
>> > > least not on a device advertised on the web pages.
>> > > > Are you referring to this product in the Thundercomm web page : SA8225P and
>> > SA8775P
>> > Ride SX 4.0 Automotive Development Platform ?
>>
>> Yes
>>
>> > For this particular product we
>> > can see
>> > eDP 0/1/2/3 serving as the dp connectors.
>>
>> Please correct the labels then. And also please mention why eDP2/3 are
>> not included / tested.
> 
> 
> Sure, we will update the labels in the upcoming patchset.
> edp 0/1 corresponds to mdss0_dptx0 and mdss0_dptx1. We have validated only these.
> edp 2/3 corresponds to mdss1_dptx0 and mdss1_dptx1, and these are not validated,
> as already mentioned during the driver changes for the same.
> Should we mention the same in the commit message for the upcoming patchset ?

So the box on the store page has these 4 ports next to each other..
Please take the additional 2 minutes and plug in a monitor to the
other two ones as well.

Konrad