linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: Enable DisplayPort on QCS615 RIDE platform

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Message-ID: <qwx6ieolctmsmlruku2bmxv2ufd3soa64ygsjjzt5b6ntweoan@tpv7w73utvmm>
Date: Tue, 10 Dec 2024 12:48:14 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Xiangxu Yin <quic_xiangxuy@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Fange Zhang <quic_fangez@...cinc.com>, Li Liu <quic_lliu6@...cinc.com>, 
	Abhinav Kumar <quic_abhinavk@...cinc.com>, linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: qcom: Enable DisplayPort on QCS615 RIDE
 platform

On Tue, Dec 10, 2024 at 05:11:06PM +0800, Xiangxu Yin wrote:
> Enable the DisplayPort node, config related regulator, lane mapping,
> hpd-gpios on the Qualcomm QCS615 RIDE platform.
> 
> Signed-off-by: Xiangxu Yin <quic_xiangxuy@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs615-ride.dts | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcs615-ride.dts b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> index 694719a09ac46bfa2fe34f1883c0970b9d0902be..0ac543577ec1850d6e4f19ff1d64252b00fffae3 100644
> --- a/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs615-ride.dts
> @@ -44,6 +44,20 @@ dp_connector_out: endpoint {
>  			};
>  		};
>  	};

You mentioned v3 of the display support series. However v3 doesn't
contain dp_connector_out label.

> +
> +	dp2-connector {
> +		compatible = "dp-connector";
> +		label = "DP2";
> +		type = "mini";
> +
> +		hpd-gpios = <&ioexp 8 GPIO_ACTIVE_HIGH>;
> +
> +		port {
> +			dp2_connector_in: endpoint {
> +				remote-endpoint = <&mdss_dp0_out>;
> +			};
> +		};
> +	};
>  };
>  
>  &apps_rsc {
> @@ -291,6 +305,22 @@ &mdss_dsi0_phy {
>  	status = "okay";
>  };
>  
> +&mdss_dp0 {
> +	status = "okay";
> +};
> +
> +&mdss_dp0_out {
> +	data-lanes = <3 2 0 1>;

This hasn't been agreed upon yet. Please abstain from using the
configuration bits that are still in discussion.

> +	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000>;
> +	remote-endpoint = <&dp2_connector_in>;
> +};
> +
> +&mdss_dp_phy {
> +	vdda-phy-supply = <&vreg_l11a>;
> +	vdda-pll-supply = <&vreg_l5a>;
> +	status = "okay";
> +};
> +
>  &qupv3_id_0 {
>  	status = "okay";
>  };
> 
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry