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

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Message-ID: <qpdponpaztryzacue5vtythr4b4cu6fohmgiwlzredm7ky7caw@eose6vpy4e7y>
Date: Wed, 20 Nov 2024 13:43:06 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.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 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.

> 
> 
> > 
> > > +		type = "full-size";
> > > +
> > > +		port {
> > > +			dp0_connector_in: endpoint {
> > > +				remote-endpoint = <&mdss0_dp0_out>;
> > > +			};
> > > +		};
> > > +	};
> > > +
> > > +	dp1-connector {
> > > +		compatible = "dp-connector";
> > > +		label = "DP1";
> > 
> > Same comment here.
> > 
> > > +		type = "full-size";
> > > +
> > > +		port {
> > > +			dp1_connector_in: endpoint {
> > > +				remote-endpoint = <&mdss0_dp1_out>;
> > > +			};
> > > +		};
> > > +	};
> > >  };
> > >  >  &apps_rsc {
> > 

-- 
With best wishes
Dmitry