# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/rockchip/rockchip,rk3399-cdn-dp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Rockchip RK3399 specific extensions to the CDN Display Port

maintainers:
  - Andy Yan <andy.yan@rock-chip.com>
  - Heiko Stuebner <heiko@sntech.de>
  - Sandy Huang <hjc@rock-chips.com>

allOf:
  - $ref: /schemas/sound/dai-common.yaml#

properties:
  compatible:
    items:
      - const: rockchip,rk3399-cdn-dp

  reg:
    maxItems: 1

  clocks:
    items:
      - description: DP core work clock
      - description: APB clock
      - description: SPDIF interface clock
      - description: GRF clock

  clock-names:
    items:
      - const: core-clk
      - const: pclk
      - const: spdif
      - const: grf

  extcon:
    $ref: /schemas/types.yaml#/definitions/phandle-array
    minItems: 1
    items:
      - description: Extcon device providing the cable state for DP PHY device 0
      - description: Extcon device providing the cable state for DP PHY device 1
    description:
      List of phandle to the extcon device providing the cable state for the DP PHY.

  interrupts:
    maxItems: 1

  phys:
    minItems: 1
    items:
      - description: DP output to the DP PHY device 0
      - description: DP output to the DP PHY device 1
    description:
      RK3399 have two DP-USB PHY, specifying one PHY which want to use, or
      specify two PHYs here to let the driver determine which PHY to use.

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

    properties:
      port@0:
        $ref: /schemas/graph.yaml#/properties/port
        description: Input of the CDN DP

        properties:
          endpoint@0:
            description: Connection to the VOPB

          endpoint@1:
            description: Connection to the VOPL

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

    required:
      - port@0
      - port@1

  power-domains:
    maxItems: 1

  resets:
    maxItems: 4

  reset-names:
    items:
      - const: spdif
      - const: dptx
      - const: apb
      - const: core

  rockchip,grf:
    $ref: /schemas/types.yaml#/definitions/phandle
    description:
      Phandle to GRF register to control HPD.
 
  "#sound-dai-cells":
    const: 1

required:
  - compatible
  - reg
  - clocks
  - clock-names
  - interrupts
  - phys
  - ports
  - resets
  - reset-names
  - rockchip,grf
  - "#sound-dai-cells"

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/clock/rk3399-cru.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/power/rk3399-power.h>
    soc {
        #address-cells = <2>;
        #size-cells = <2>;
 
        dp@fec00000 {
            compatible = "rockchip,rk3399-cdn-dp";
            reg = <0x0 0xfec00000 0x0 0x100000>;
            assigned-clocks = <&cru SCLK_DP_CORE>;
            assigned-clock-rates = <100000000>;
            interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cru SCLK_DP_CORE>, <&cru PCLK_DP_CTRL>, <&cru SCLK_SPDIF_REC_DPTX>,
                    <&cru PCLK_VIO_GRF>;
            clock-names = "core-clk", "pclk", "spdif", "grf";
            power-domains = <&power RK3399_PD_HDCP>;
            phys = <&tcphy0_dp>, <&tcphy1_dp>;
            resets = <&cru SRST_DPTX_SPDIF_REC>, <&cru SRST_P_UPHY0_DPTX>,
                    <&cru SRST_P_UPHY0_APB>, <&cru SRST_DP_CORE>;
            reset-names = "spdif", "dptx", "apb", "core";
            rockchip,grf = <&grf>;
            #sound-dai-cells = <1>;
 
            ports {
                #address-cells = <1>;
                #size-cells = <0>;
 
                dp_in: port@0 {
                    reg = <0>;
                    #address-cells = <1>;
                    #size-cells = <0>;
 
                    dp_in_vopb: endpoint@0 {
                        reg = <0>;
                        remote-endpoint = <&vopb_out_dp>;
                    };
 
                    dp_in_vopl: endpoint@1 {
                        reg = <1>;
                        remote-endpoint = <&vopl_out_dp>;
                    };
                };
 
                dp_out: port@1 {
                    reg = <1>;
                };
            };
        };
    };