Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/bridge/renesas,dw-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas R-Car DWC HDMI TX Encoder

maintainers:
  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

description: |
  The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
  with a companion PHY IP.

allOf:
  - $ref: synopsys,dw-hdmi.yaml#

properties:
  compatible:
    items:
      - enum:
          - renesas,r8a774a1-hdmi # for RZ/G2M compatible HDMI TX
          - renesas,r8a774b1-hdmi # for RZ/G2N compatible HDMI TX
          - renesas,r8a774e1-hdmi # for RZ/G2H compatible HDMI TX
          - renesas,r8a7795-hdmi # for R-Car H3 compatible HDMI TX
          - renesas,r8a7796-hdmi # for R-Car M3-W compatible HDMI TX
          - renesas,r8a77961-hdmi # for R-Car M3-W+ compatible HDMI TX
          - renesas,r8a77965-hdmi # for R-Car M3-N compatible HDMI TX
      - const: renesas,rcar-gen3-hdmi

  reg-io-width:
    const: 1

  clocks:
    maxItems: 2

  clock-names:
    maxItems: 2

  resets:
    maxItems: 1

  ports:
    $ref: /schemas/graph.yaml#/properties/ports

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description: Parallel RGB input port

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description: HDMI output port

      port@2:
        $ref: /schemas/graph.yaml#/properties/port
        description: Sound input port

    required:
      - port@0
      - port@1
      - port@2

  power-domains:
    maxItems: 1

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - resets
  - interrupts
  - ports

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/power/r8a7795-sysc.h>

    hdmi@fead0000 {
        compatible = "renesas,r8a7795-hdmi", "renesas,rcar-gen3-hdmi";
        reg = <0xfead0000 0x10000>;
        interrupts = <0 389 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&cpg CPG_CORE R8A7795_CLK_S0D4>, <&cpg CPG_MOD 729>;
        clock-names = "iahb", "isfr";
        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
        resets = <&cpg 729>;

        ports {
            #address-cells = <1>;
            #size-cells = <0>;
            port@0 {
                reg = <0>;
                dw_hdmi0_in: endpoint {
                    remote-endpoint = <&du_out_hdmi0>;
                };
            };
            port@1 {
                reg = <1>;
                rcar_dw_hdmi0_out: endpoint {
                    remote-endpoint = <&hdmi0_con>;
                };
            };
            port@2 {
                reg = <2>;
                rcar_dw_hdmi0_sound_in: endpoint {
                    remote-endpoint = <&hdmi_sound_out>;
                };
            };
        };
    };

    hdmi0-out {
        compatible = "hdmi-connector";
        label = "HDMI0 OUT";
        type = "a";

        port {
            hdmi0_con: endpoint {
                remote-endpoint = <&rcar_dw_hdmi0_out>;
            };
        };
    };

...