linux-kernel - Re: [PATCH 4/9] arm64: dts: qcom: qcs6490-rb3gen2: Add DP output

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Date: Thu, 22 Feb 2024 01:46:19 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <quic_bjorande@...cinc.com>
Cc: Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, cros-qcom-dts-watchers@...omium.org, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
	Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org, 
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 4/9] arm64: dts: qcom: qcs6490-rb3gen2: Add DP output

On Thu, 22 Feb 2024 at 01:19, Bjorn Andersson <quic_bjorande@...cinc.com> wrote:
>
> The RB3Gen2 board comes with a mini DP connector, describe this, enable
> MDSS, DP controller and the PHY that drives this.
>
> Signed-off-by: Bjorn Andersson <quic_bjorande@...cinc.com>
> ---
>  arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> index ac4579119d3b..32313f47602a 100644
> --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
> @@ -430,6 +430,23 @@ &gcc {
>                            <GCC_WPSS_RSCP_CLK>;
>  };
>
> +&mdss {
> +       status = "okay";
> +};
> +
> +&mdss_edp {
> +       status = "okay";
> +};
> +
> +&mdss_edp_out {
> +       data-lanes = <0 1 2 3>;
> +       link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
> +};

Please add a corresponding dp-connector device and link it to the mdss_edp_out.

> +
> +&mdss_edp_phy {
> +       status = "okay";
> +};
> +
>  &qupv3_id_0 {
>         status = "okay";
>  };
> @@ -470,3 +487,9 @@ &usb_1_qmpphy {
>  &wifi {
>         memory-region = <&wlan_fw_mem>;
>  };
> +
> +/* PINCTRL - ADDITIONS TO NODES IN PARENT DEVICE TREE FILES */
> +
> +&edp_hot_plug_det {
> +       bias-disable;
> +};
>
> --
> 2.25.1
>


--
With best wishes
Dmitry