Documentation/devicetree/bindings/display/rockchip/rockchip,inno-hdmi.yaml

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/rockchip/rockchip,inno-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip Innosilicon HDMI controller

maintainers:
  - Sandy Huang <hjc@rock-chips.com>
  - Heiko Stuebner <heiko@sntech.de>

properties:
  compatible:
    enum:
      - rockchip,rk3036-inno-hdmi
      - rockchip,rk3128-inno-hdmi

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: The HDMI controller main clock
      - description: The HDMI PHY reference clock

  clock-names:
    minItems: 1
    items:
      - const: pclk
      - const: ref

  power-domains:
    maxItems: 1

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

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          Port node with one endpoint connected to a vop node.

      port@1:
        $ref: /schemas/graph.yaml#/properties/port
        description:
          Port node with one endpoint connected to a hdmi-connector node.

    required:
      - port@0
      - port@1

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names
  - pinctrl-0
  - pinctrl-names
  - ports

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: rockchip,rk3036-inno-hdmi

    then:
      properties:
        power-domains: false

  - if:
      properties:
        compatible:
          contains:
            const: rockchip,rk3128-inno-hdmi

    then:
      properties:
        clocks:
          minItems: 2
        clock-names:
          minItems: 2
      required:
        - power-domains

additionalProperties: false

examples:
  - |
    #include <dt-bindings/clock/rk3036-cru.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/pinctrl/rockchip.h>
    hdmi: hdmi@20034000 {
      compatible = "rockchip,rk3036-inno-hdmi";
      reg = <0x20034000 0x4000>;
      interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
      clocks = <&cru  PCLK_HDMI>;
      clock-names = "pclk";
      pinctrl-names = "default";
      pinctrl-0 = <&hdmi_ctl>;

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

        hdmi_in: port@0 {
          reg = <0>;
          hdmi_in_vop: endpoint {
            remote-endpoint = <&vop_out_hdmi>;
          };
        };

        hdmi_out: port@1 {
          reg = <1>;
          hdmi_out_con: endpoint {
            remote-endpoint = <&hdmi_con_in>;
          };
        };
      };
    };

    pinctrl {
      hdmi {
        hdmi_ctl: hdmi-ctl {
          rockchip,pins = <1 RK_PB0 1 &pcfg_pull_none>,
                          <1 RK_PB1 1 &pcfg_pull_none>,
                          <1 RK_PB2 1 &pcfg_pull_none>,
                          <1 RK_PB3 1 &pcfg_pull_none>;
        };
      };
    };