linux-kernel - Re: [PATCH] arm64: dts: qcom: sc7280: Add Display Port node

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Date:   Wed, 25 Aug 2021 12:25:50 +0200
From:   Marijn Suijten <marijn.suijten@...ainline.org>
To:     Kuogee Hsieh <khsieh@...eaurora.org>, robdclark@...il.com,
        sean@...rly.run, swboyd@...omium.org, vkoul@...nel.org,
        agross@...nel.org, bjorn.andersson@...aro.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org
Cc:     abhinavk@...eaurora.org, aravindh@...eaurora.org,
        mkrishn@...eaurora.org, kalyan_t@...eaurora.org,
        rajeevny@...eaurora.org, freedreno@...ts.freedesktop.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>
Subject: Re: [PATCH] arm64: dts: qcom: sc7280: Add Display Port node

Hi Kuogee,

On 8/25/21 1:20 AM, Kuogee Hsieh wrote:
> [..]
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index c29226b..a350d84 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> [..]
> +			msm_dp: displayport-controller@...0000 {
> +				status = "disabled";
> +				compatible = "qcom,sc7180-dp";
> +
> +				reg = <0 0x0ae90000 0 0x1400>;
> +
> +				interrupt-parent = <&mdss>;
> +				interrupts = <12 IRQ_TYPE_NONE>;
> +
> +				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DP_AUX_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DP_LINK_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DP_LINK_INTF_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>;
> +				clock-names = "core_iface", "core_aux", "ctrl_link",
> +					      "ctrl_link_iface", "stream_pixel";
> +				#clock-cells = <1>;
> +				assigned-clocks = <&dispcc DISP_CC_MDSS_DP_LINK_CLK_SRC>,
> +						  <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK_SRC>;
> +				assigned-clock-parents = <&dp_phy 0>, <&dp_phy 1>;
> +				phys = <&dp_phy>;
> +				phy-names = "dp";
> +
> +				operating-points-v2 = <&dp_opp_table>;
> +				power-domains = <&rpmhpd SC7180_CX>;


Despite having the same value as SC7180_CX, you may want to use 
SC7280_CX here.

- Marijn