Re: [PATCH 3/3] arm64: dts: qcom: sm8650: Add DisplayPort device nodes

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On Thu, Dec 07, 2023 at 05:37:19PM +0100, Neil Armstrong wrote:
> diff --git a/arch/arm64/boot/dts/qcom/sm8650.dtsi b/arch/arm64/boot/dts/qcom/sm8650.dtsi
[..]
> +
> +			mdss_dp0: displayport-controller@af54000 {
> +				compatible = "qcom,sm8650-dp";
> +				reg = <0 0xaf54000 0 0x200>,
> +				      <0 0xaf54200 0 0x200>,
> +				      <0 0xaf55000 0 0xc00>,
> +				      <0 0xaf56000 0 0x400>,
> +				      <0 0xaf57000 0 0x400>;
> +
> +				interrupts-extended = <&mdss 12>;
> +
> +				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DPTX0_AUX_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DPTX0_LINK_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DPTX0_LINK_INTF_CLK>,
> +					 <&dispcc DISP_CC_MDSS_DPTX0_PIXEL0_CLK>;
> +				clock-names = "core_iface",
> +					      "core_aux",
> +					      "ctrl_link",
> +					      "ctrl_link_iface",
> +					      "stream_pixel";
> +
> +				assigned-clocks = <&dispcc DISP_CC_MDSS_DPTX0_LINK_CLK_SRC>,
> +						  <&dispcc DISP_CC_MDSS_DPTX0_PIXEL0_CLK_SRC>;
> +				assigned-clock-parents = <&usb_dp_qmpphy QMP_USB43DP_DP_LINK_CLK>,
> +							 <&usb_dp_qmpphy QMP_USB43DP_DP_VCO_DIV_CLK>;
> +
> +				operating-points-v2 = <&dp_opp_table>;
> +
> +				power-domains = <&rpmhpd RPMHPD_MX>;

Are you sure the DP TX block sits in MX? I'd expect this to be
RPMHPD_MMCX, and then the PHY partially in MX...

> +
> +				phys = <&usb_dp_qmpphy QMP_USB43DP_DP_PHY>;
> +				phy-names = "dp";
> +
> +				#sound-dai-cells = <0>;
> +
> +				status = "disabled";
> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +
> +						mdss_dp0_in: endpoint {
> +							remote-endpoint = <&dpu_intf0_out>;
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +
> +						mdss_dp0_out: endpoint {
> +						};
> +					};
> +				};
> +
> +				dp_opp_table: opp-table {

Is there any reason why we keep sorting 'o' after 'p' in these nodes?

Regards,
Bjorn




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