Documentation/devicetree/bindings/display/msm/dp-controller.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/msm/dp-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: MSM Display Port Controller

maintainers:
  - Kuogee Hsieh <khsieh@codeaurora.org>

description: |
  Device tree bindings for DisplayPort host controller for MSM targets
  that are compatible with VESA DisplayPort interface specification.

properties:
  compatible:
    enum:
      - qcom,sc7180-dp
      - qcom,sc8180x-dp
      - qcom,sc8180x-edp

  reg:
    items:
      - description: ahb register block
      - description: aux register block
      - description: link register block
      - description: p0 register block
      - description: p1 register block

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: AHB clock to enable register access
      - description: Display Port AUX clock
      - description: Display Port Link clock
      - description: Link interface clock between DP and PHY
      - description: Display Port Pixel clock

  clock-names:
    items:
      - const: core_iface
      - const: core_aux
      - const: ctrl_link
      - const: ctrl_link_iface
      - const: stream_pixel

  assigned-clocks:
    items:
      - description: link clock source
      - description: pixel clock source

  assigned-clock-parents:
    items:
      - description: phy 0 parent
      - description: phy 1 parent

  phys:
    maxItems: 1

  phy-names:
    items:
      - const: dp

  operating-points-v2:
    maxItems: 1

  power-domains:
    maxItems: 1

  "#sound-dai-cells":
    const: 0

  ports:
    $ref: /schemas/graph.yaml#/properties/ports
    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description: Input endpoint of the controller

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description: Output endpoint of the controller

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - phys
  - phy-names
  - "#sound-dai-cells"
  - power-domains
  - ports

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/qcom,dispcc-sc7180.h>
    #include <dt-bindings/power/qcom-rpmpd.h>

    displayport-controller@ae90000 {
        compatible = "qcom,sc7180-dp";
        reg = <0xae90000 0x200>,
              <0xae90200 0x200>,
              <0xae90400 0xc00>,
              <0xae91000 0x400>,
              <0xae91400 0x400>;
        interrupt-parent = <&mdss>;
        interrupts = <12>;
        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";

        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";

        #sound-dai-cells = <0>;

        power-domains = <&rpmhpd SC7180_CX>;

        ports {
            #address-cells = <1>;
            #size-cells = <0>;

            port@0 {
                reg = <0>;
                endpoint {
                    remote-endpoint = <&dpu_intf0_out>;
                };
            };

            port@1 {
                reg = <1>;
                endpoint {
                    remote-endpoint = <&typec>;
                };
            };
        };
    };
...