diff mbox series

dt-bindings: display: renesas,du: Convert binding to YAML

Message ID 20201215230603.7796-1-laurent.pinchart+renesas@ideasonboard.com (mailing list archive)
State Superseded
Headers show
Series dt-bindings: display: renesas,du: Convert binding to YAML | expand

Commit Message

Laurent Pinchart Dec. 15, 2020, 11:06 p.m. UTC
Convert the Renesas R-Car DU text binding to YAML.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
Changes since v1:

- Use pattern instead of enum for dclkin
- Update MAINTAINERS
---
 .../bindings/display/renesas,du.txt           | 145 ---
 .../bindings/display/renesas,du.yaml          | 854 ++++++++++++++++++
 MAINTAINERS                                   |   2 +-
 3 files changed, 855 insertions(+), 146 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/display/renesas,du.txt
 create mode 100644 Documentation/devicetree/bindings/display/renesas,du.yaml

Comments

Rob Herring Dec. 17, 2020, 11:48 p.m. UTC | #1
On Wed, Dec 16, 2020 at 01:06:03AM +0200, Laurent Pinchart wrote:
> Convert the Renesas R-Car DU text binding to YAML.
> 

I tend to think this should be split up, but up to you.

> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> ---
> Changes since v1:
> 
> - Use pattern instead of enum for dclkin
> - Update MAINTAINERS
> ---
>  .../bindings/display/renesas,du.txt           | 145 ---
>  .../bindings/display/renesas,du.yaml          | 854 ++++++++++++++++++
>  MAINTAINERS                                   |   2 +-
>  3 files changed, 855 insertions(+), 146 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/renesas,du.txt
>  create mode 100644 Documentation/devicetree/bindings/display/renesas,du.yaml


> diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml
> new file mode 100644
> index 000000000000..f56ef3eed742
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
> @@ -0,0 +1,854 @@
> +# 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: true
> +  resets: true
> +  reset-names: true
> +
> +  ports:
> +    type: object
> +    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.
> +
> +    properties:
> +      '#address-cells':
> +        const: 1
> +
> +      '#size-cells':
> +        const: 0
> +
> +    patternProperties:
> +      "^port@[0-3]$":
> +        type: object
> +
> +        properties:
> +          reg:
> +            maxItems: 1
> +
> +          endpoint:
> +            type: object
> +
> +            properties:
> +              remote-endpoint:
> +                $ref: /schemas/types.yaml#/definitions/phandle
> +
> +            required:
> +              - remote-endpoint
> +
> +            additionalProperties: false

No need to document more than 'port' nodes if no extra endpoint 
properties.

> +
> +        additionalProperties: false
> +
> +    required:
> +      - port@0
> +      - port@1
> +
> +    additionalProperties: 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.

These 2 properties are about the only thing shared.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - interrupts
> +  - resets
> +  - 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]$"
> +            - pattern: "^dclkin\\.[01]$"

IIRC, with single quotes you just need '\.' instead of '\\.'

> +
> +        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

What are they?

> +
> +        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>;
> +                };
> +            };
> +        };
> +    };
> +
> +...
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 7b073c41c3a0..22663c2cb3a8 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -5905,7 +5905,7 @@ S:	Supported
>  T:	git git://linuxtv.org/pinchartl/media drm/du/next
>  F:	Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
>  F:	Documentation/devicetree/bindings/display/bridge/renesas,lvds.yaml
> -F:	Documentation/devicetree/bindings/display/renesas,du.txt
> +F:	Documentation/devicetree/bindings/display/renesas,du.yaml
>  F:	drivers/gpu/drm/rcar-du/
>  F:	drivers/gpu/drm/shmobile/
>  F:	include/linux/platform_data/shmob_drm.h
> -- 
> Regards,
> 
> Laurent Pinchart
>
Laurent Pinchart Dec. 20, 2020, 2:48 p.m. UTC | #2
Hi Rob,

On Thu, Dec 17, 2020 at 05:48:22PM -0600, Rob Herring wrote:
> On Wed, Dec 16, 2020 at 01:06:03AM +0200, Laurent Pinchart wrote:
> > Convert the Renesas R-Car DU text binding to YAML.
> 
> I tend to think this should be split up, but up to you.

I wouldn't mind, but I'm not sure how to do so in a meaningful way that
wouldn't result in, for instance, a file name renesas,du-r8a7791.yaml
that would contain bindings for all of

- renesas,du-r8a7743
- renesas,du-r8a7744
- renesas,du-r8a7791
- renesas,du-r8a7793

which I think would be quite confusing, or one file per SoC with lots of
duplications, which doesn't sound great either :-S If there's a better
split, I'd be happy to implement it.

> > Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
> > ---
> > Changes since v1:
> > 
> > - Use pattern instead of enum for dclkin
> > - Update MAINTAINERS
> > ---
> >  .../bindings/display/renesas,du.txt           | 145 ---
> >  .../bindings/display/renesas,du.yaml          | 854 ++++++++++++++++++
> >  MAINTAINERS                                   |   2 +-
> >  3 files changed, 855 insertions(+), 146 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/display/renesas,du.txt
> >  create mode 100644 Documentation/devicetree/bindings/display/renesas,du.yaml
> 
> 
> > diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml
> > new file mode 100644
> > index 000000000000..f56ef3eed742
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
> > @@ -0,0 +1,854 @@
> > +# 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: true
> > +  resets: true
> > +  reset-names: true
> > +
> > +  ports:
> > +    type: object
> > +    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.
> > +
> > +    properties:
> > +      '#address-cells':
> > +        const: 1
> > +
> > +      '#size-cells':
> > +        const: 0
> > +
> > +    patternProperties:
> > +      "^port@[0-3]$":
> > +        type: object
> > +
> > +        properties:
> > +          reg:
> > +            maxItems: 1
> > +
> > +          endpoint:
> > +            type: object
> > +
> > +            properties:
> > +              remote-endpoint:
> > +                $ref: /schemas/types.yaml#/definitions/phandle
> > +
> > +            required:
> > +              - remote-endpoint
> > +
> > +            additionalProperties: false
> 
> No need to document more than 'port' nodes if no extra endpoint 
> properties.

I'll fix that.

> > +
> > +        additionalProperties: false
> > +
> > +    required:
> > +      - port@0
> > +      - port@1
> > +
> > +    additionalProperties: 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:
> > +    $ref: "/schemas/types.yaml#/definitions/phandle-array"
> > +    description:
> > +      A list of phandle and channel index tuples to the VSPs that handle the
> > +      memory interfaces for the DU channels. The phandle identifies the VSP
> > +      instance that serves the DU channel, and the channel index identifies
> > +      the LIF instance in that VSP.
> 
> These 2 properties are about the only thing shared.
> 
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - clocks
> > +  - interrupts
> > +  - resets
> > +  - ports
> > +
> > +allOf:
> > +  - if:
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            const: renesas,du-r8a7779
> > +    then:
> > +      properties:
> > +        clocks:
> > +          minItems: 1
> > +          maxItems: 3
> > +          items:
> > +            - description: Functional clock
> > +            - description: DU_DOTCLKIN0 input clock
> > +            - description: DU_DOTCLKIN1 input clock
> > +
> > +        clock-names:
> > +          minItems: 1
> > +          maxItems: 3
> > +          items:
> > +            - const: du.0
> > +            - pattern: "^dclkin\\.[01]$"
> > +            - pattern: "^dclkin\\.[01]$"
> 
> IIRC, with single quotes you just need '\.' instead of '\\.'

Thanks for the tip, fixed.

> > +
> > +        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
> 
> What are they?

I've modified the common section at the top to include

  interrupts:
    description: Interrupt specifiers, one per DU channel

> > +
> > +        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

[snip]
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/renesas,du.txt b/Documentation/devicetree/bindings/display/renesas,du.txt
deleted file mode 100644
index 7d65c24fcda8..000000000000
--- a/Documentation/devicetree/bindings/display/renesas,du.txt
+++ /dev/null
@@ -1,145 +0,0 @@ 
-* Renesas R-Car Display Unit (DU)
-
-Required Properties:
-
-  - compatible: must be one of the following.
-    - "renesas,du-r8a7742" for R8A7742 (RZ/G1H) compatible DU
-    - "renesas,du-r8a7743" for R8A7743 (RZ/G1M) compatible DU
-    - "renesas,du-r8a7744" for R8A7744 (RZ/G1N) compatible DU
-    - "renesas,du-r8a7745" for R8A7745 (RZ/G1E) compatible DU
-    - "renesas,du-r8a77470" for R8A77470 (RZ/G1C) compatible DU
-    - "renesas,du-r8a774a1" for R8A774A1 (RZ/G2M) compatible DU
-    - "renesas,du-r8a774b1" for R8A774B1 (RZ/G2N) compatible DU
-    - "renesas,du-r8a774c0" for R8A774C0 (RZ/G2E) compatible DU
-    - "renesas,du-r8a774e1" for R8A774E1 (RZ/G2H) compatible DU
-    - "renesas,du-r8a7779" for R8A7779 (R-Car H1) compatible DU
-    - "renesas,du-r8a7790" for R8A7790 (R-Car H2) compatible DU
-    - "renesas,du-r8a7791" for R8A7791 (R-Car M2-W) compatible DU
-    - "renesas,du-r8a7792" for R8A7792 (R-Car V2H) compatible DU
-    - "renesas,du-r8a7793" for R8A7793 (R-Car M2-N) compatible DU
-    - "renesas,du-r8a7794" for R8A7794 (R-Car E2) compatible DU
-    - "renesas,du-r8a7795" for R8A7795 (R-Car H3) compatible DU
-    - "renesas,du-r8a7796" for R8A7796 (R-Car M3-W) compatible DU
-    - "renesas,du-r8a77961" for R8A77961 (R-Car M3-W+) compatible DU
-    - "renesas,du-r8a77965" for R8A77965 (R-Car M3-N) compatible DU
-    - "renesas,du-r8a77970" for R8A77970 (R-Car V3M) compatible DU
-    - "renesas,du-r8a77980" for R8A77980 (R-Car V3H) compatible DU
-    - "renesas,du-r8a77990" for R8A77990 (R-Car E3) compatible DU
-    - "renesas,du-r8a77995" for R8A77995 (R-Car D3) compatible DU
-
-  - reg: the memory-mapped I/O registers base address and length
-
-  - interrupts: Interrupt specifiers for the DU interrupts.
-
-  - clocks: A list of phandles + clock-specifier pairs, one for each entry in
-    the clock-names property.
-  - clock-names: Name of the clocks. This property is model-dependent.
-    - R8A7779 uses a single functional clock. The clock doesn't need to be
-      named.
-    - All other DU instances use one functional clock per channel The
-      functional clocks must be named "du.x" with "x" being the channel
-      numerical index.
-    - In addition to the functional clocks, all DU versions also support
-      externally supplied pixel clocks. Those clocks are optional. When
-      supplied they must be named "dclkin.x" with "x" being the input clock
-      numerical index.
-
-  - renesas,cmms: A list of phandles to the CMM instances present in the SoC,
-    one for each available DU channel. The property shall not be specified for
-    SoCs that do not provide any CMM (such as V3M and V3H).
-
-  - renesas,vsps: 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.
-
-Optional properties:
-  - resets: A list of phandle + reset-specifier pairs, one for each entry in
-    the reset-names property.
-  - reset-names: Names of the resets. This property is model-dependent.
-    - All but R8A7779 use one reset for a group of one or more successive
-      channels. The resets must be named "du.x" with "x" being the numerical
-      index of the lowest channel in the group.
-
-Required nodes:
-
-The connections to the DU output video ports are modeled using the OF graph
-bindings specified in Documentation/devicetree/bindings/graph.txt.
-
-The following table lists for each supported model the port number
-corresponding to each DU output.
-
-                        Port0          Port1          Port2          Port3
------------------------------------------------------------------------------
- R8A7742 (RZ/G1H)       DPAD 0         LVDS 0         LVDS 1         -
- R8A7743 (RZ/G1M)       DPAD 0         LVDS 0         -              -
- R8A7744 (RZ/G1N)       DPAD 0         LVDS 0         -              -
- R8A7745 (RZ/G1E)       DPAD 0         DPAD 1         -              -
- R8A77470 (RZ/G1C)      DPAD 0         DPAD 1         LVDS 0         -
- R8A774A1 (RZ/G2M)      DPAD 0         HDMI 0         LVDS 0         -
- R8A774B1 (RZ/G2N)      DPAD 0         HDMI 0         LVDS 0         -
- R8A774C0 (RZ/G2E)      DPAD 0         LVDS 0         LVDS 1         -
- R8A774E1 (RZ/G2H)      DPAD 0         HDMI 0         LVDS 0         -
- R8A7779 (R-Car H1)     DPAD 0         DPAD 1         -              -
- R8A7790 (R-Car H2)     DPAD 0         LVDS 0         LVDS 1         -
- R8A7791 (R-Car M2-W)   DPAD 0         LVDS 0         -              -
- R8A7792 (R-Car V2H)    DPAD 0         DPAD 1         -              -
- R8A7793 (R-Car M2-N)   DPAD 0         LVDS 0         -              -
- R8A7794 (R-Car E2)     DPAD 0         DPAD 1         -              -
- R8A7795 (R-Car H3)     DPAD 0         HDMI 0         HDMI 1         LVDS 0
- R8A7796 (R-Car M3-W)   DPAD 0         HDMI 0         LVDS 0         -
- R8A77961 (R-Car M3-W+) DPAD 0         HDMI 0         LVDS 0         -
- R8A77965 (R-Car M3-N)  DPAD 0         HDMI 0         LVDS 0         -
- R8A77970 (R-Car V3M)   DPAD 0         LVDS 0         -              -
- R8A77980 (R-Car V3H)   DPAD 0         LVDS 0         -              -
- R8A77990 (R-Car E3)    DPAD 0         LVDS 0         LVDS 1         -
- R8A77995 (R-Car D3)    DPAD 0         LVDS 0         LVDS 1         -
-
-
-Example: R8A7795 (R-Car H3) ES2.0 DU
-
-	du: display@feb00000 {
-		compatible = "renesas,du-r8a7795";
-		reg = <0 0xfeb00000 0 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>;
-				du_out_rgb: endpoint {
-				};
-			};
-			port@1 {
-				reg = <1>;
-				du_out_hdmi0: endpoint {
-					remote-endpoint = <&dw_hdmi0_in>;
-				};
-			};
-			port@2 {
-				reg = <2>;
-				du_out_hdmi1: endpoint {
-					remote-endpoint = <&dw_hdmi1_in>;
-				};
-			};
-			port@3 {
-				reg = <3>;
-				du_out_lvds0: endpoint {
-				};
-			};
-		};
-	};
diff --git a/Documentation/devicetree/bindings/display/renesas,du.yaml b/Documentation/devicetree/bindings/display/renesas,du.yaml
new file mode 100644
index 000000000000..f56ef3eed742
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
@@ -0,0 +1,854 @@ 
+# 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: true
+  resets: true
+  reset-names: true
+
+  ports:
+    type: object
+    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.
+
+    properties:
+      '#address-cells':
+        const: 1
+
+      '#size-cells':
+        const: 0
+
+    patternProperties:
+      "^port@[0-3]$":
+        type: object
+
+        properties:
+          reg:
+            maxItems: 1
+
+          endpoint:
+            type: object
+
+            properties:
+              remote-endpoint:
+                $ref: /schemas/types.yaml#/definitions/phandle
+
+            required:
+              - remote-endpoint
+
+            additionalProperties: false
+
+        additionalProperties: false
+
+    required:
+      - port@0
+      - port@1
+
+    additionalProperties: 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:
+    $ref: "/schemas/types.yaml#/definitions/phandle-array"
+    description:
+      A list of phandle and channel index tuples to the VSPs that handle the
+      memory interfaces for the DU channels. The phandle identifies the VSP
+      instance that serves the DU channel, and the channel index identifies
+      the LIF instance in that VSP.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - interrupts
+  - resets
+  - ports
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,du-r8a7779
+    then:
+      properties:
+        clocks:
+          minItems: 1
+          maxItems: 3
+          items:
+            - description: Functional clock
+            - description: DU_DOTCLKIN0 input clock
+            - description: DU_DOTCLKIN1 input clock
+
+        clock-names:
+          minItems: 1
+          maxItems: 3
+          items:
+            - const: du.0
+            - pattern: "^dclkin\\.[01]$"
+            - 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>;
+                };
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 7b073c41c3a0..22663c2cb3a8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5905,7 +5905,7 @@  S:	Supported
 T:	git git://linuxtv.org/pinchartl/media drm/du/next
 F:	Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt
 F:	Documentation/devicetree/bindings/display/bridge/renesas,lvds.yaml
-F:	Documentation/devicetree/bindings/display/renesas,du.txt
+F:	Documentation/devicetree/bindings/display/renesas,du.yaml
 F:	drivers/gpu/drm/rcar-du/
 F:	drivers/gpu/drm/shmobile/
 F:	include/linux/platform_data/shmob_drm.h