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

title: Renesas R-Car Display Unit (DU)

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

description: |
  These DT bindings describe the Display Unit embedded in the Renesas R-Car
  Gen1, R-Car Gen2, R-Car Gen3, RZ/G1 and RZ/G2 SoCs.

properties:
  compatible:
    enum:
      - renesas,du-r8a7742 # for RZ/G1H compatible DU
      - renesas,du-r8a7743 # for RZ/G1M compatible DU
      - renesas,du-r8a7744 # for RZ/G1N compatible DU
      - renesas,du-r8a7745 # for RZ/G1E compatible DU
      - renesas,du-r8a77470 # for RZ/G1C compatible DU
      - renesas,du-r8a774a1 # for RZ/G2M compatible DU
      - renesas,du-r8a774b1 # for RZ/G2N compatible DU
      - renesas,du-r8a774c0 # for RZ/G2E compatible DU
      - renesas,du-r8a774e1 # for RZ/G2H compatible DU
      - renesas,du-r8a7779 # for R-Car H1 compatible DU
      - renesas,du-r8a7790 # for R-Car H2 compatible DU
      - renesas,du-r8a7791 # for R-Car M2-W compatible DU
      - renesas,du-r8a7792 # for R-Car V2H compatible DU
      - renesas,du-r8a7793 # for R-Car M2-N compatible DU
      - renesas,du-r8a7794 # for R-Car E2 compatible DU
      - renesas,du-r8a7795 # for R-Car H3 compatible DU
      - renesas,du-r8a7796 # for R-Car M3-W compatible DU
      - renesas,du-r8a77961 # for R-Car M3-W+ compatible DU
      - renesas,du-r8a77965 # for R-Car M3-N compatible DU
      - renesas,du-r8a77970 # for R-Car V3M compatible DU
      - renesas,du-r8a77980 # for R-Car V3H compatible DU
      - renesas,du-r8a77990 # for R-Car E3 compatible DU
      - renesas,du-r8a77995 # for R-Car D3 compatible DU

  reg:
    maxItems: 1

  # See compatible-specific constraints below.
  clocks: true
  clock-names: true
  interrupts:
    description: Interrupt specifiers, one per DU channel
  resets: true
  reset-names: true

  power-domains:
    maxItems: 1

  ports:
    $ref: /schemas/graph.yaml#/properties/ports
    description: |
      The connections to the DU output video ports are modeled using the OF
      graph bindings specified in Documentation/devicetree/bindings/graph.txt.
      The number of ports and their assignment are model-dependent. Each port
      shall have a single endpoint.

    patternProperties:
      "^port@[0-3]$":
        $ref: /schemas/graph.yaml#/properties/port
        unevaluatedProperties: false

    required:
      - port@0
      - port@1

    unevaluatedProperties: false

  renesas,cmms:
    $ref: "/schemas/types.yaml#/definitions/phandle-array"
    description:
      A list of phandles to the CMM instances present in the SoC, one for each
      available DU channel.

  renesas,vsps:
    $ref: "/schemas/types.yaml#/definitions/phandle-array"
    description:
      A list of phandle and channel index tuples to the VSPs that handle the
      memory interfaces for the DU channels. The phandle identifies the VSP
      instance that serves the DU channel, and the channel index identifies
      the LIF instance in that VSP.

required:
  - compatible
  - reg
  - clocks
  - interrupts
  - ports

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: renesas,du-r8a7779
    then:
      properties:
        clocks:
          minItems: 1
          maxItems: 3
          items:
            - description: Functional clock
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 1
          maxItems: 3
          items:
            - const: du.0
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 1

        resets:
          maxItems: 1

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: DPAD 1
            # port@2 is TCON, not supported yet
            port@2: false
            port@3: false

          required:
            - port@0
            - port@1

      required:
        - interrupts

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a7743
              - renesas,du-r8a7744
              - renesas,du-r8a7791
              - renesas,du-r8a7793
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 4
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 2
          maxItems: 4
          items:
            - const: du.0
            - const: du.1
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 2

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: LVDS 0
            # port@2 is TCON, not supported yet
            port@2: false
            port@3: false

          required:
            - port@0
            - port@1

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a7745
              - renesas,du-r8a7792
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 4
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 2
          maxItems: 4
          items:
            - const: du.0
            - const: du.1
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 2

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: DPAD 1
            port@2: false
            port@3: false

          required:
            - port@0
            - port@1

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a7794
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 4
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 2
          maxItems: 4
          items:
            - const: du.0
            - const: du.1
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 2

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: DPAD 1
            # port@2 is TCON, not supported yet
            port@2: false
            port@3: false

          required:
            - port@0
            - port@1

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a77470
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 4
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 2
          maxItems: 4
          items:
            - const: du.0
            - const: du.1
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 2

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: DPAD 1
            port@2:
              description: LVDS 0
            # port@3 is DVENC, not supported yet
            port@3: false

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

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a7742
              - renesas,du-r8a7790
    then:
      properties:
        clocks:
          minItems: 3
          maxItems: 6
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: Functional clock for DU2
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock
            - description: DU_DOTCLKIN2 input clock

        clock-names:
          minItems: 3
          maxItems: 6
          items:
            - const: du.0
            - const: du.1
            - const: du.2
            - pattern: '^dclkin\.[012]$'
            - pattern: '^dclkin\.[012]$'
            - pattern: '^dclkin\.[012]$'

        interrupts:
          maxItems: 3

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: LVDS 0
            port@2:
              description: LVDS 1
            # port@3 is TCON, not supported yet
            port@3: false

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

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a7795
    then:
      properties:
        clocks:
          minItems: 4
          maxItems: 8
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: Functional clock for DU2
            - description: Functional clock for DU4
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock
            - description: DU_DOTCLKIN2 input clock
            - description: DU_DOTCLKIN3 input clock

        clock-names:
          minItems: 4
          maxItems: 8
          items:
            - const: du.0
            - const: du.1
            - const: du.2
            - const: du.3
            - pattern: '^dclkin\.[0123]$'
            - pattern: '^dclkin\.[0123]$'
            - pattern: '^dclkin\.[0123]$'
            - pattern: '^dclkin\.[0123]$'

        interrupts:
          maxItems: 4

        resets:
          maxItems: 2

        reset-names:
          items:
            - const: du.0
            - const: du.2

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: HDMI 0
            port@2:
              description: HDMI 1
            port@3:
              description: LVDS 0

          required:
            - port@0
            - port@1
            - port@2
            - port@3

        renesas,cmms:
          minItems: 4

        renesas,vsps:
          minItems: 4

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names
        - renesas,vsps

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a774a1
              - renesas,du-r8a7796
              - renesas,du-r8a77961
    then:
      properties:
        clocks:
          minItems: 3
          maxItems: 6
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: Functional clock for DU2
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock
            - description: DU_DOTCLKIN2 input clock

        clock-names:
          minItems: 3
          maxItems: 6
          items:
            - const: du.0
            - const: du.1
            - const: du.2
            - pattern: '^dclkin\.[012]$'
            - pattern: '^dclkin\.[012]$'
            - pattern: '^dclkin\.[012]$'

        interrupts:
          maxItems: 3

        resets:
          maxItems: 2

        reset-names:
          items:
            - const: du.0
            - const: du.2

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: HDMI 0
            port@2:
              description: LVDS 0
            port@3: false

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

        renesas,cmms:
          minItems: 3

        renesas,vsps:
          minItems: 3

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names
        - renesas,vsps

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a774b1
              - renesas,du-r8a774e1
              - renesas,du-r8a77965
    then:
      properties:
        clocks:
          minItems: 3
          maxItems: 6
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: Functional clock for DU3
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock
            - description: DU_DOTCLKIN3 input clock

        clock-names:
          minItems: 3
          maxItems: 6
          items:
            - const: du.0
            - const: du.1
            - const: du.3
            - pattern: '^dclkin\.[013]$'
            - pattern: '^dclkin\.[013]$'
            - pattern: '^dclkin\.[013]$'

        interrupts:
          maxItems: 3

        resets:
          maxItems: 2

        reset-names:
          items:
            - const: du.0
            - const: du.3

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: HDMI 0
            port@2:
              description: LVDS 0
            port@3: false

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

        renesas,cmms:
          minItems: 3

        renesas,vsps:
          minItems: 3

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names
        - renesas,vsps

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a77970
              - renesas,du-r8a77980
    then:
      properties:
        clocks:
          minItems: 1
          maxItems: 2
          items:
            - description: Functional clock for DU0
            - description: DU_DOTCLKIN0 input clock

        clock-names:
          minItems: 1
          maxItems: 2
          items:
            - const: du.0
            - const: dclkin.0

        interrupts:
          maxItems: 1

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: LVDS 0
            port@2: false
            port@3: false

          required:
            - port@0
            - port@1

        renesas,vsps:
          minItems: 1

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names
        - renesas,vsps

  - if:
      properties:
        compatible:
          contains:
            enum:
              - renesas,du-r8a774c0
              - renesas,du-r8a77990
              - renesas,du-r8a77995
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 4
          items:
            - description: Functional clock for DU0
            - description: Functional clock for DU1
            - description: DU_DOTCLKIN0 input clock
            - description: DU_DOTCLKIN1 input clock

        clock-names:
          minItems: 2
          maxItems: 4
          items:
            - const: du.0
            - const: du.1
            - pattern: '^dclkin\.[01]$'
            - pattern: '^dclkin\.[01]$'

        interrupts:
          maxItems: 2

        resets:
          maxItems: 1

        reset-names:
          items:
            - const: du.0

        ports:
          properties:
            port@0:
              description: DPAD 0
            port@1:
              description: LVDS 0
            port@2:
              description: LVDS 1
            # port@3 is TCON, not supported yet
            port@3: false

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

        renesas,cmms:
          minItems: 2

        renesas,vsps:
          minItems: 2

      required:
        - clock-names
        - interrupts
        - resets
        - reset-names
        - renesas,vsps

additionalProperties: false

examples:
  # R-Car H3 ES2.0 DU
  - |
    #include <dt-bindings/clock/renesas-cpg-mssr.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    display@feb00000 {
        compatible = "renesas,du-r8a7795";
        reg = <0xfeb00000 0x80000>;
        interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 269 IRQ_TYPE_LEVEL_HIGH>,
                     <GIC_SPI 270 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&cpg CPG_MOD 724>,
                 <&cpg CPG_MOD 723>,
                 <&cpg CPG_MOD 722>,
                 <&cpg CPG_MOD 721>;
        clock-names = "du.0", "du.1", "du.2", "du.3";
        resets = <&cpg 724>, <&cpg 722>;
        reset-names = "du.0", "du.2";

        renesas,cmms = <&cmm0>, <&cmm1>, <&cmm2>, <&cmm3>;
        renesas,vsps = <&vspd0 0>, <&vspd1 0>, <&vspd2 0>, <&vspd0 1>;

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

            port@0 {
                reg = <0>;
                endpoint {
                    remote-endpoint = <&adv7123_in>;
                };
            };
            port@1 {
                reg = <1>;
                endpoint {
                    remote-endpoint = <&dw_hdmi0_in>;
                };
            };
            port@2 {
                reg = <2>;
                endpoint {
                    remote-endpoint = <&dw_hdmi1_in>;
                };
            };
            port@3 {
                reg = <3>;
                endpoint {
                    remote-endpoint = <&lvds0_in>;
                };
            };
        };
    };

...