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[3/3] dt-bindings: rcar-vin: Convert bindings to json-schema

Message ID 20191108021609.2584272-4-niklas.soderlund+renesas@ragnatech.se
State Changes Requested, archived
Headers show
Series dt-bindings: rcar-vin: Convert bindings to json-schema | expand

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Context Check Description
robh/checkpatch warning "total: 0 errors, 2 warnings, 409 lines checked"

Commit Message

Niklas Söderlund Nov. 8, 2019, 2:16 a.m. UTC
Convert Renesas R-Car VIN bindings documentation to json-schema.

As the examples in the bindings now can be tested add a new one which
describes how the both a parallel and a CSI-2 source can be connected on
Gen3 SoCs.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 .../devicetree/bindings/media/renesas,vin.txt | 217 ----------
 .../bindings/media/renesas,vin.yaml           | 409 ++++++++++++++++++
 2 files changed, 409 insertions(+), 217 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/media/renesas,vin.txt
 create mode 100644 Documentation/devicetree/bindings/media/renesas,vin.yaml

Comments

Hans Verkuil Nov. 10, 2019, 10:46 a.m. UTC | #1
On 11/8/19 3:16 AM, Niklas Söderlund wrote:
> Convert Renesas R-Car VIN bindings documentation to json-schema.
> 
> As the examples in the bindings now can be tested add a new one which
> describes how the both a parallel and a CSI-2 source can be connected on
> Gen3 SoCs.
> 
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>

Same here: you forgot to update MAINTAINERS.

Regards,

	Hans

> ---
>  .../devicetree/bindings/media/renesas,vin.txt | 217 ----------
>  .../bindings/media/renesas,vin.yaml           | 409 ++++++++++++++++++
>  2 files changed, 409 insertions(+), 217 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/media/renesas,vin.txt
>  create mode 100644 Documentation/devicetree/bindings/media/renesas,vin.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/renesas,vin.txt b/Documentation/devicetree/bindings/media/renesas,vin.txt
> deleted file mode 100644
> index 5eefd62ac5c5b9fd..0000000000000000
> --- a/Documentation/devicetree/bindings/media/renesas,vin.txt
> +++ /dev/null
> @@ -1,217 +0,0 @@
> -Renesas R-Car Video Input driver (rcar_vin)
> --------------------------------------------
> -
> -The rcar_vin device provides video input capabilities for the Renesas R-Car
> -family of devices.
> -
> -Each VIN instance has a single parallel input that supports RGB and YUV video,
> -with both external synchronization and BT.656 synchronization for the latter.
> -Depending on the instance the VIN input is connected to external SoC pins, or
> -on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
> -
> - - compatible: Must be one or more of the following
> -   - "renesas,vin-r8a7743" for the R8A7743 device
> -   - "renesas,vin-r8a7744" for the R8A7744 device
> -   - "renesas,vin-r8a7745" for the R8A7745 device
> -   - "renesas,vin-r8a77470" for the R8A77470 device
> -   - "renesas,vin-r8a774a1" for the R8A774A1 device
> -   - "renesas,vin-r8a774b1" for the R8A774B1 device
> -   - "renesas,vin-r8a774c0" for the R8A774C0 device
> -   - "renesas,vin-r8a7778" for the R8A7778 device
> -   - "renesas,vin-r8a7779" for the R8A7779 device
> -   - "renesas,vin-r8a7790" for the R8A7790 device
> -   - "renesas,vin-r8a7791" for the R8A7791 device
> -   - "renesas,vin-r8a7792" for the R8A7792 device
> -   - "renesas,vin-r8a7793" for the R8A7793 device
> -   - "renesas,vin-r8a7794" for the R8A7794 device
> -   - "renesas,vin-r8a7795" for the R8A7795 device
> -   - "renesas,vin-r8a7796" for the R8A7796 device
> -   - "renesas,vin-r8a77965" for the R8A77965 device
> -   - "renesas,vin-r8a77970" for the R8A77970 device
> -   - "renesas,vin-r8a77980" for the R8A77980 device
> -   - "renesas,vin-r8a77990" for the R8A77990 device
> -   - "renesas,vin-r8a77995" for the R8A77995 device
> -   - "renesas,rcar-gen2-vin" for a generic R-Car Gen2 or RZ/G1 compatible
> -     device.
> -
> -   When compatible with the generic version nodes must list the
> -   SoC-specific version corresponding to the platform first
> -   followed by the generic version.
> -
> - - reg: the register base and size for the device registers
> - - interrupts: the interrupt for the device
> - - clocks: Reference to the parent clock
> -
> -The per-board settings for Gen2 and RZ/G1 platforms:
> -
> -- port - sub-node describing a single endpoint connected to the VIN
> -  from external SoC pins as described in video-interfaces.txt[1].
> -  Only the first one will be considered as each vin interface has one
> -  input port.
> -
> -  - Optional properties for endpoint nodes:
> -    - hsync-active: see [1] for description. Default is active high.
> -    - vsync-active: see [1] for description. Default is active high.
> -      If both HSYNC and VSYNC polarities are not specified, embedded
> -      synchronization is selected.
> -    - field-active-even: see [1] for description. Default is active high.
> -    - bus-width: see [1] for description. The selected bus width depends on
> -      the SoC type and selected input image format.
> -      Valid values are: 8, 10, 12, 16, 24 and 32.
> -    - data-shift: see [1] for description. Valid values are 0 and 8.
> -    - data-enable-active: polarity of CLKENB signal, see [1] for
> -      description. Default is active high.
> -
> -The per-board settings for Gen3 and RZ/G2 platforms:
> -
> -Gen3 and RZ/G2 platforms can support both a single connected parallel input
> -source from external SoC pins (port@0) and/or multiple parallel input sources
> -from local SoC CSI-2 receivers (port@1) depending on SoC.
> -
> -- renesas,id - ID number of the VIN, VINx in the documentation.
> -- ports
> -    - port@0 - sub-node describing a single endpoint connected to the VIN
> -      from external SoC pins as described in video-interfaces.txt[1].
> -      Describing more than one endpoint in port@0 is invalid. Only VIN
> -      instances that are connected to external pins should have port@0.
> -
> -      Endpoint nodes of port@0 support the optional properties listed in
> -      the Gen2 per-board settings description.
> -
> -    - port@1 - sub-nodes describing one or more endpoints connected to
> -      the VIN from local SoC CSI-2 receivers. The endpoint numbers must
> -      use the following schema.
> -
> -        - endpoint@0 - sub-node describing the endpoint connected to CSI20
> -        - endpoint@1 - sub-node describing the endpoint connected to CSI21
> -        - endpoint@2 - sub-node describing the endpoint connected to CSI40
> -        - endpoint@3 - sub-node describing the endpoint connected to CSI41
> -
> -      Endpoint nodes of port@1 do not support any optional endpoint property.
> -
> -Device node example for Gen2 platforms
> ---------------------------------------
> -
> -        aliases {
> -                vin0 = &vin0;
> -        };
> -
> -        vin0: vin@e6ef0000 {
> -                compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
> -                clocks = <&mstp8_clks R8A7790_CLK_VIN0>;
> -                reg = <0 0xe6ef0000 0 0x1000>;
> -                interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>;
> -                status = "disabled";
> -        };
> -
> -Board setup example for Gen2 platforms (vin1 composite video input)
> --------------------------------------------------------------------
> -
> -&i2c2   {
> -        status = "okay";
> -        pinctrl-0 = <&i2c2_pins>;
> -        pinctrl-names = "default";
> -
> -        adv7180@20 {
> -                compatible = "adi,adv7180";
> -                reg = <0x20>;
> -                remote = <&vin1>;
> -
> -                port {
> -                        adv7180: endpoint {
> -                                bus-width = <8>;
> -                                remote-endpoint = <&vin1ep0>;
> -                        };
> -                };
> -        };
> -};
> -
> -/* composite video input */
> -&vin1 {
> -        pinctrl-0 = <&vin1_pins>;
> -        pinctrl-names = "default";
> -
> -        status = "okay";
> -
> -        port {
> -                vin1ep0: endpoint {
> -                        remote-endpoint = <&adv7180>;
> -                        bus-width = <8>;
> -                };
> -        };
> -};
> -
> -Device node example for Gen3 platforms
> ---------------------------------------
> -
> -        vin0: video@e6ef0000 {
> -                compatible = "renesas,vin-r8a7795";
> -                reg = <0 0xe6ef0000 0 0x1000>;
> -                interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
> -                clocks = <&cpg CPG_MOD 811>;
> -                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> -                resets = <&cpg 811>;
> -                renesas,id = <0>;
> -
> -                ports {
> -                        #address-cells = <1>;
> -                        #size-cells = <0>;
> -
> -                        port@1 {
> -                                #address-cells = <1>;
> -                                #size-cells = <0>;
> -
> -                                reg = <1>;
> -
> -                                vin0csi20: endpoint@0 {
> -                                        reg = <0>;
> -                                        remote-endpoint= <&csi20vin0>;
> -                                };
> -                                vin0csi21: endpoint@1 {
> -                                        reg = <1>;
> -                                        remote-endpoint= <&csi21vin0>;
> -                                };
> -                                vin0csi40: endpoint@2 {
> -                                        reg = <2>;
> -                                        remote-endpoint= <&csi40vin0>;
> -                                };
> -                        };
> -                };
> -        };
> -
> -        csi20: csi2@fea80000 {
> -                compatible = "renesas,r8a7795-csi2";
> -                reg = <0 0xfea80000 0 0x10000>;
> -                interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
> -                clocks = <&cpg CPG_MOD 714>;
> -                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> -                resets = <&cpg 714>;
> -
> -                ports {
> -                        #address-cells = <1>;
> -                        #size-cells = <0>;
> -
> -                        port@0 {
> -                                reg = <0>;
> -                                csi20_in: endpoint {
> -                                        clock-lanes = <0>;
> -                                        data-lanes = <1>;
> -                                        remote-endpoint = <&adv7482_txb>;
> -                                };
> -                        };
> -
> -                        port@1 {
> -                                #address-cells = <1>;
> -                                #size-cells = <0>;
> -
> -                                reg = <1>;
> -
> -                                csi20vin0: endpoint@0 {
> -                                        reg = <0>;
> -                                        remote-endpoint = <&vin0csi20>;
> -                                };
> -                        };
> -                };
> -        };
> -
> -[1] video-interfaces.txt common video media interface
> diff --git a/Documentation/devicetree/bindings/media/renesas,vin.yaml b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> new file mode 100644
> index 0000000000000000..be261d9a98d62dcd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> @@ -0,0 +1,409 @@
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (C) 2019 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/renesas,vin.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas R-Car Video Input (VIN)
> +
> +maintainers:
> +  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
> +
> +description: |-
> +  The R-Car Video Input (VIN) device provides video input capabilities for the
> +  Renesas R-Car family of devices.
> +
> +  Each VIN instance has a single parallel input that supports RGB and YUV video,
> +  with both external synchronization and BT.656 synchronization for the latter.
> +  Depending on the instance the VIN input is connected to external SoC pins, or
> +  on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +        - enum:
> +          - renesas,vin-r8a7743  # RZ/G1M
> +          - renesas,vin-r8a7744  # RZ/G1N
> +          - renesas,vin-r8a7745  # RZ/G1E
> +          - renesas,vin-r8a77470 # RZ/G1C
> +          - renesas,vin-r8a7790  # R-Car H2
> +          - renesas,vin-r8a7791  # R-Car M2-W
> +          - renesas,vin-r8a7792  # R-Car V2H
> +          - renesas,vin-r8a7793  # R-Car M2-N
> +          - renesas,vin-r8a7794  # R-Car E2
> +        - const: renesas,rcar-gen2-vin # Generic R-Car Gen2 or RZ/G1
> +
> +      - items:
> +        - enum:
> +          - renesas,vin-r8a774a1 # RZ/G2M
> +          - renesas,vin-r8a774b1 # RZ/G2N
> +          - renesas,vin-r8a774c0 # RZ/G2E
> +          - renesas,vin-r8a7778  # R-Car M1
> +          - renesas,vin-r8a7779  # R-Car H1
> +          - renesas,vin-r8a7795  # R-Car H3
> +          - renesas,vin-r8a7796  # R-Car M3-W
> +          - renesas,vin-r8a77965 # R-Car M3-N
> +          - renesas,vin-r8a77970 # R-Car V3M
> +          - renesas,vin-r8a77980 # R-Car V3H
> +          - renesas,vin-r8a77990 # R-Car E3
> +          - renesas,vin-r8a77995 # R-Car D3
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  #The per-board settings for Gen2 and RZ/G1 platforms:
> +  port:
> +    type: object
> +    description: |-
> +      A node containing a parallel input with a singel endpoint definitions as
> +      documented in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +    properties:
> +      reg:
> +        const: 1
> +
> +      endpoint:
> +        type: object
> +
> +        properties:
> +          hsync-active:
> +            description: |-
> +              Default is active high. If both HSYNC and VSYNC polarities are not
> +              specified, embedded synchronization is selected.
> +            enum: [ 0, 1 ]
> +
> +          vsync-active:
> +            description: |-
> +              Default is active high. If both HSYNC and VSYNC polarities are not
> +              specified, embedded synchronization is selected.
> +            enum: [ 0, 1 ]
> +
> +          field-active-even:
> +            description: Default is active high.
> +            enum: [ 0, 1 ]
> +
> +          bus-width:
> +            enum: [ 8, 10, 12, 16, 24, 32 ]
> +
> +          data-shift:
> +            enum: [ 0, 8 ]
> +
> +          data-enable-active:
> +            description: Polarity of CLKENB signal, default is active high.
> +            enum: [ 0, 1 ]
> +
> +          pclk-sample:
> +            enum: [ 0, 1 ]
> +
> +          data-active:
> +            enum: [ 0, 1 ]
> +
> +          remote-endpoint:
> +            maxItems: 1
> +
> +        required:
> +          - remote-endpoint
> +
> +        additionalProperties: false
> +
> +    additionalProperties: false
> +
> +  #The per-board settings for Gen3 and RZ/G2 platforms:
> +  renesas,id:
> +    description: VIN channel number
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ]
> +
> +  ports:
> +    type: object
> +    description: |-
> +      A node containing input nodes with endpoint definitions as documented in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +    properties:
> +      port@0:
> +        type: object
> +        description: |-
> +          Input port node, single endpoint describing a parallel input source.
> +
> +        properties:
> +          reg:
> +            const: 0
> +
> +          endpoint:
> +            type: object
> +
> +            properties:
> +              hsync-active:
> +                description: |-
> +                  Default is active high. If both HSYNC and VSYNC polarities are not
> +                  specified, embedded synchronization is selected.
> +                enum: [ 0, 1 ]
> +
> +              vsync-active:
> +                description: |-
> +                  Default is active high. If both HSYNC and VSYNC polarities are not
> +                  specified, embedded synchronization is selected.
> +                enum: [ 0, 1 ]
> +
> +              field-active-even:
> +                description: Default is active high.
> +                enum: [ 0, 1 ]
> +
> +              bus-width:
> +                enum: [ 8, 10, 12, 16, 24, 32 ]
> +
> +              data-shift:
> +                enum: [ 0, 8 ]
> +
> +              data-enable-active:
> +                description: Polarity of CLKENB signal, default is active high.
> +                enum: [ 0, 1 ]
> +
> +              pclk-sample:
> +                enum: [ 0, 1 ]
> +
> +              data-active:
> +                enum: [ 0, 1 ]
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +        additionalProperties: false
> +
> +      port@1:
> +        type: object
> +        description: |-
> +          Input port node, multiple endpoints describing all the R-Car CSI-2
> +          modules connected the VIN.
> +
> +        properties:
> +          '#address-cells':
> +            const: 1
> +
> +          '#size-cells':
> +            const: 0
> +
> +          reg:
> +            const: 1
> +
> +          endpoint@0:
> +            type: object
> +            description: Endpoint connected to CSI20.
> +
> +            properties:
> +              reg:
> +                const: 0
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@1:
> +            type: object
> +            description: Endpoint connected to CSI21.
> +
> +            properties:
> +              reg:
> +                const: 1
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@2:
> +            type: object
> +            description: Endpoint connected to CSI40.
> +
> +            properties:
> +              reg:
> +                const: 2
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@3:
> +            type: object
> +            description: Endpoint connected to CSI41.
> +
> +            properties:
> +              reg:
> +                const: 3
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +        additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - power-domains
> +  - resets
> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        anyOf:
> +          - const: renesas,vin-r8a7778
> +          - const: renesas,vin-r8a7779
> +          - const: renesas,rcar-gen2-vin
> +then:
> +  required:
> +    - port
> +else:
> +  required:
> +    - renesas,id
> +    - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  # Device node example for Gen2 platform
> +  - |
> +    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a7790-sysc.h>
> +
> +    vin1: vin@e6ef1000 {
> +            compatible = "renesas,vin-r8a7790",
> +                         "renesas,rcar-gen2-vin";
> +            reg = <0 0xe6ef1000 0 0x1000>;
> +            interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 810>;
> +            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
> +            resets = <&cpg 810>;
> +
> +            port {
> +                    vin1ep0: endpoint {
> +                            remote-endpoint = <&adv7180>;
> +                            bus-width = <8>;
> +                    };
> +            };
> +    };
> +
> +  # Device node example for Gen3 platform with only CSI-2
> +  - |
> +    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a7795-sysc.h>
> +
> +    vin0: video@e6ef0000 {
> +            compatible = "renesas,vin-r8a7795";
> +            reg = <0 0xe6ef0000 0 0x1000>;
> +            interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 811>;
> +            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> +            resets = <&cpg 811>;
> +            renesas,id = <0>;
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            vin0csi20: endpoint@0 {
> +                                    reg = <0>;
> +                                    remote-endpoint= <&csi20vin0>;
> +                            };
> +                            vin0csi40: endpoint@2 {
> +                                    reg = <2>;
> +                                    remote-endpoint= <&csi40vin0>;
> +                            };
> +                    };
> +            };
> +    };
> +
> +  # Device node example for Gen3 platform with CSI-2 and parallel
> +  - |
> +    #include <dt-bindings/clock/r8a77970-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a77970-sysc.h>
> +
> +    vin2: video@e6ef2000 {
> +            compatible = "renesas,vin-r8a77970";
> +            reg = <0 0xe6ef2000 0 0x1000>;
> +            interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 809>;
> +            power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +            resets = <&cpg 809>;
> +            renesas,id = <2>;
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@0 {
> +                            reg = <0>;
> +
> +                            vin2_in: endpoint {
> +                                    remote-endpoint = <&adv7612_out>;
> +                                    hsync-active = <0>;
> +                                    vsync-active = <0>;
> +                            };
> +                    };
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            vin2csi40: endpoint@2 {
> +                                    reg = <2>;
> +                                    remote-endpoint = <&csi40vin2>;
> +                            };
> +                    };
> +            };
> +    };
>
Jacopo Mondi Nov. 12, 2019, 9:42 a.m. UTC | #2
Hi Niklas,
   thanks for the patch

On Fri, Nov 08, 2019 at 03:16:09AM +0100, Niklas Söderlund wrote:
> Convert Renesas R-Car VIN bindings documentation to json-schema.
>
> As the examples in the bindings now can be tested add a new one which
> describes how the both a parallel and a CSI-2 source can be connected on
> Gen3 SoCs.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> ---
>  .../devicetree/bindings/media/renesas,vin.txt | 217 ----------
>  .../bindings/media/renesas,vin.yaml           | 409 ++++++++++++++++++
>  2 files changed, 409 insertions(+), 217 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/media/renesas,vin.txt
>  create mode 100644 Documentation/devicetree/bindings/media/renesas,vin.yaml
>
> diff --git a/Documentation/devicetree/bindings/media/renesas,vin.txt b/Documentation/devicetree/bindings/media/renesas,vin.txt
> deleted file mode 100644
> index 5eefd62ac5c5b9fd..0000000000000000
> --- a/Documentation/devicetree/bindings/media/renesas,vin.txt
> +++ /dev/null
> @@ -1,217 +0,0 @@
> -Renesas R-Car Video Input driver (rcar_vin)
> --------------------------------------------
> -
> -The rcar_vin device provides video input capabilities for the Renesas R-Car
> -family of devices.
> -
> -Each VIN instance has a single parallel input that supports RGB and YUV video,
> -with both external synchronization and BT.656 synchronization for the latter.
> -Depending on the instance the VIN input is connected to external SoC pins, or
> -on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
> -
> - - compatible: Must be one or more of the following
> -   - "renesas,vin-r8a7743" for the R8A7743 device
> -   - "renesas,vin-r8a7744" for the R8A7744 device
> -   - "renesas,vin-r8a7745" for the R8A7745 device
> -   - "renesas,vin-r8a77470" for the R8A77470 device
> -   - "renesas,vin-r8a774a1" for the R8A774A1 device
> -   - "renesas,vin-r8a774b1" for the R8A774B1 device
> -   - "renesas,vin-r8a774c0" for the R8A774C0 device
> -   - "renesas,vin-r8a7778" for the R8A7778 device
> -   - "renesas,vin-r8a7779" for the R8A7779 device
> -   - "renesas,vin-r8a7790" for the R8A7790 device
> -   - "renesas,vin-r8a7791" for the R8A7791 device
> -   - "renesas,vin-r8a7792" for the R8A7792 device
> -   - "renesas,vin-r8a7793" for the R8A7793 device
> -   - "renesas,vin-r8a7794" for the R8A7794 device
> -   - "renesas,vin-r8a7795" for the R8A7795 device
> -   - "renesas,vin-r8a7796" for the R8A7796 device
> -   - "renesas,vin-r8a77965" for the R8A77965 device
> -   - "renesas,vin-r8a77970" for the R8A77970 device
> -   - "renesas,vin-r8a77980" for the R8A77980 device
> -   - "renesas,vin-r8a77990" for the R8A77990 device
> -   - "renesas,vin-r8a77995" for the R8A77995 device
> -   - "renesas,rcar-gen2-vin" for a generic R-Car Gen2 or RZ/G1 compatible
> -     device.
> -
> -   When compatible with the generic version nodes must list the
> -   SoC-specific version corresponding to the platform first
> -   followed by the generic version.
> -
> - - reg: the register base and size for the device registers
> - - interrupts: the interrupt for the device
> - - clocks: Reference to the parent clock
> -
> -The per-board settings for Gen2 and RZ/G1 platforms:
> -
> -- port - sub-node describing a single endpoint connected to the VIN
> -  from external SoC pins as described in video-interfaces.txt[1].
> -  Only the first one will be considered as each vin interface has one
> -  input port.
> -
> -  - Optional properties for endpoint nodes:
> -    - hsync-active: see [1] for description. Default is active high.
> -    - vsync-active: see [1] for description. Default is active high.
> -      If both HSYNC and VSYNC polarities are not specified, embedded
> -      synchronization is selected.
> -    - field-active-even: see [1] for description. Default is active high.
> -    - bus-width: see [1] for description. The selected bus width depends on
> -      the SoC type and selected input image format.
> -      Valid values are: 8, 10, 12, 16, 24 and 32.
> -    - data-shift: see [1] for description. Valid values are 0 and 8.
> -    - data-enable-active: polarity of CLKENB signal, see [1] for
> -      description. Default is active high.
> -
> -The per-board settings for Gen3 and RZ/G2 platforms:
> -
> -Gen3 and RZ/G2 platforms can support both a single connected parallel input
> -source from external SoC pins (port@0) and/or multiple parallel input sources
> -from local SoC CSI-2 receivers (port@1) depending on SoC.
> -
> -- renesas,id - ID number of the VIN, VINx in the documentation.
> -- ports
> -    - port@0 - sub-node describing a single endpoint connected to the VIN
> -      from external SoC pins as described in video-interfaces.txt[1].
> -      Describing more than one endpoint in port@0 is invalid. Only VIN
> -      instances that are connected to external pins should have port@0.
> -
> -      Endpoint nodes of port@0 support the optional properties listed in
> -      the Gen2 per-board settings description.
> -
> -    - port@1 - sub-nodes describing one or more endpoints connected to
> -      the VIN from local SoC CSI-2 receivers. The endpoint numbers must
> -      use the following schema.
> -
> -        - endpoint@0 - sub-node describing the endpoint connected to CSI20
> -        - endpoint@1 - sub-node describing the endpoint connected to CSI21
> -        - endpoint@2 - sub-node describing the endpoint connected to CSI40
> -        - endpoint@3 - sub-node describing the endpoint connected to CSI41
> -
> -      Endpoint nodes of port@1 do not support any optional endpoint property.
> -
> -Device node example for Gen2 platforms
> ---------------------------------------
> -
> -        aliases {
> -                vin0 = &vin0;
> -        };
> -
> -        vin0: vin@e6ef0000 {
> -                compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
> -                clocks = <&mstp8_clks R8A7790_CLK_VIN0>;
> -                reg = <0 0xe6ef0000 0 0x1000>;
> -                interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>;
> -                status = "disabled";
> -        };
> -
> -Board setup example for Gen2 platforms (vin1 composite video input)
> --------------------------------------------------------------------
> -
> -&i2c2   {
> -        status = "okay";
> -        pinctrl-0 = <&i2c2_pins>;
> -        pinctrl-names = "default";
> -
> -        adv7180@20 {
> -                compatible = "adi,adv7180";
> -                reg = <0x20>;
> -                remote = <&vin1>;
> -
> -                port {
> -                        adv7180: endpoint {
> -                                bus-width = <8>;
> -                                remote-endpoint = <&vin1ep0>;
> -                        };
> -                };
> -        };
> -};
> -
> -/* composite video input */
> -&vin1 {
> -        pinctrl-0 = <&vin1_pins>;
> -        pinctrl-names = "default";
> -
> -        status = "okay";
> -
> -        port {
> -                vin1ep0: endpoint {
> -                        remote-endpoint = <&adv7180>;
> -                        bus-width = <8>;
> -                };
> -        };
> -};
> -
> -Device node example for Gen3 platforms
> ---------------------------------------
> -
> -        vin0: video@e6ef0000 {
> -                compatible = "renesas,vin-r8a7795";
> -                reg = <0 0xe6ef0000 0 0x1000>;
> -                interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
> -                clocks = <&cpg CPG_MOD 811>;
> -                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> -                resets = <&cpg 811>;
> -                renesas,id = <0>;
> -
> -                ports {
> -                        #address-cells = <1>;
> -                        #size-cells = <0>;
> -
> -                        port@1 {
> -                                #address-cells = <1>;
> -                                #size-cells = <0>;
> -
> -                                reg = <1>;
> -
> -                                vin0csi20: endpoint@0 {
> -                                        reg = <0>;
> -                                        remote-endpoint= <&csi20vin0>;
> -                                };
> -                                vin0csi21: endpoint@1 {
> -                                        reg = <1>;
> -                                        remote-endpoint= <&csi21vin0>;
> -                                };
> -                                vin0csi40: endpoint@2 {
> -                                        reg = <2>;
> -                                        remote-endpoint= <&csi40vin0>;
> -                                };
> -                        };
> -                };
> -        };
> -
> -        csi20: csi2@fea80000 {
> -                compatible = "renesas,r8a7795-csi2";
> -                reg = <0 0xfea80000 0 0x10000>;
> -                interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
> -                clocks = <&cpg CPG_MOD 714>;
> -                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> -                resets = <&cpg 714>;
> -
> -                ports {
> -                        #address-cells = <1>;
> -                        #size-cells = <0>;
> -
> -                        port@0 {
> -                                reg = <0>;
> -                                csi20_in: endpoint {
> -                                        clock-lanes = <0>;
> -                                        data-lanes = <1>;
> -                                        remote-endpoint = <&adv7482_txb>;
> -                                };
> -                        };
> -
> -                        port@1 {
> -                                #address-cells = <1>;
> -                                #size-cells = <0>;
> -
> -                                reg = <1>;
> -
> -                                csi20vin0: endpoint@0 {
> -                                        reg = <0>;
> -                                        remote-endpoint = <&vin0csi20>;
> -                                };
> -                        };
> -                };
> -        };
> -
> -[1] video-interfaces.txt common video media interface
> diff --git a/Documentation/devicetree/bindings/media/renesas,vin.yaml b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> new file mode 100644
> index 0000000000000000..be261d9a98d62dcd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> @@ -0,0 +1,409 @@
> +# SPDX-License-Identifier: GPL-2.0

I think you should use GPL-2.0-only

> +# Copyright (C) 2019 Renesas Electronics Corp.
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/renesas,vin.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas R-Car Video Input (VIN)
> +
> +maintainers:
> +  - Niklas Söderlund <niklas.soderlund@ragnatech.se>

I also put the mailing lists here, not sure if that's desired.

> +
> +description: |-
> +  The R-Car Video Input (VIN) device provides video input capabilities for the
> +  Renesas R-Car family of devices.
> +
> +  Each VIN instance has a single parallel input that supports RGB and YUV video,
> +  with both external synchronization and BT.656 synchronization for the latter.
> +  Depending on the instance the VIN input is connected to external SoC pins, or
> +  on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +        - enum:
> +          - renesas,vin-r8a7743  # RZ/G1M
> +          - renesas,vin-r8a7744  # RZ/G1N
> +          - renesas,vin-r8a7745  # RZ/G1E
> +          - renesas,vin-r8a77470 # RZ/G1C
> +          - renesas,vin-r8a7790  # R-Car H2
> +          - renesas,vin-r8a7791  # R-Car M2-W
> +          - renesas,vin-r8a7792  # R-Car V2H
> +          - renesas,vin-r8a7793  # R-Car M2-N
> +          - renesas,vin-r8a7794  # R-Car E2
> +        - const: renesas,rcar-gen2-vin # Generic R-Car Gen2 or RZ/G1
> +
> +      - items:
> +        - enum:
> +          - renesas,vin-r8a774a1 # RZ/G2M
> +          - renesas,vin-r8a774b1 # RZ/G2N
> +          - renesas,vin-r8a774c0 # RZ/G2E
> +          - renesas,vin-r8a7778  # R-Car M1
> +          - renesas,vin-r8a7779  # R-Car H1
> +          - renesas,vin-r8a7795  # R-Car H3
> +          - renesas,vin-r8a7796  # R-Car M3-W
> +          - renesas,vin-r8a77965 # R-Car M3-N
> +          - renesas,vin-r8a77970 # R-Car V3M
> +          - renesas,vin-r8a77980 # R-Car V3H
> +          - renesas,vin-r8a77990 # R-Car E3
> +          - renesas,vin-r8a77995 # R-Car D3
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  #The per-board settings for Gen2 and RZ/G1 platforms:
> +  port:
> +    type: object
> +    description: |-
> +      A node containing a parallel input with a singel endpoint definitions as
> +      documented in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +    properties:
> +      reg:
> +        const: 1

Do you need reg for the single 'port' ?

> +
> +      endpoint:
> +        type: object
> +
> +        properties:
> +          hsync-active:
> +            description: |-
> +              Default is active high. If both HSYNC and VSYNC polarities are not
> +              specified, embedded synchronization is selected.
> +            enum: [ 0, 1 ]
> +
> +          vsync-active:
> +            description: |-
> +              Default is active high. If both HSYNC and VSYNC polarities are not
> +              specified, embedded synchronization is selected.
> +            enum: [ 0, 1 ]
> +
> +          field-active-even:
> +            description: Default is active high.
> +            enum: [ 0, 1 ]
> +
> +          bus-width:
> +            enum: [ 8, 10, 12, 16, 24, 32 ]
> +
> +          data-shift:
> +            enum: [ 0, 8 ]
> +
> +          data-enable-active:
> +            description: Polarity of CLKENB signal, default is active high.
> +            enum: [ 0, 1 ]
> +
> +          pclk-sample:
> +            enum: [ 0, 1 ]
> +
> +          data-active:
> +            enum: [ 0, 1 ]
> +
> +          remote-endpoint:
> +            maxItems: 1
> +
> +        required:
> +          - remote-endpoint
> +
> +        additionalProperties: false
> +
> +    additionalProperties: false
> +
> +  #The per-board settings for Gen3 and RZ/G2 platforms:
> +  renesas,id:
> +    description: VIN channel number
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/uint32
> +      - enum: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ]
> +
> +  ports:
> +    type: object
> +    description: |-
> +      A node containing input nodes with endpoint definitions as documented in
> +      Documentation/devicetree/bindings/media/video-interfaces.txt
> +
> +    properties:
> +      port@0:
> +        type: object
> +        description: |-
> +          Input port node, single endpoint describing a parallel input source.
> +
> +        properties:
> +          reg:
> +            const: 0
> +
> +          endpoint:
> +            type: object
> +
> +            properties:
> +              hsync-active:
> +                description: |-
> +                  Default is active high. If both HSYNC and VSYNC polarities are not
> +                  specified, embedded synchronization is selected.
> +                enum: [ 0, 1 ]
> +
> +              vsync-active:
> +                description: |-
> +                  Default is active high. If both HSYNC and VSYNC polarities are not
> +                  specified, embedded synchronization is selected.
> +                enum: [ 0, 1 ]
> +
> +              field-active-even:
> +                description: Default is active high.
> +                enum: [ 0, 1 ]
> +
> +              bus-width:
> +                enum: [ 8, 10, 12, 16, 24, 32 ]
> +
> +              data-shift:
> +                enum: [ 0, 8 ]

Why are those two not described ? I feel like or you either refrain
from describing all poperties and point the reader to
video-interfaces.txt, or you describe all of them, at least to provide
an indication of the default if the property is not specified.

> +
> +              data-enable-active:
> +                description: Polarity of CLKENB signal, default is active high.
> +                enum: [ 0, 1 ]
> +
> +              pclk-sample:
> +                enum: [ 0, 1 ]
> +
> +              data-active:
> +                enum: [ 0, 1 ]
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +        additionalProperties: false
> +
> +      port@1:
> +        type: object
> +        description: |-
> +          Input port node, multiple endpoints describing all the R-Car CSI-2
> +          modules connected the VIN.
> +
> +        properties:
> +          '#address-cells':
> +            const: 1
> +
> +          '#size-cells':
> +            const: 0
> +
> +          reg:
> +            const: 1
> +
> +          endpoint@0:
> +            type: object
> +            description: Endpoint connected to CSI20.
> +
> +            properties:
> +              reg:
> +                const: 0
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@1:
> +            type: object
> +            description: Endpoint connected to CSI21.
> +
> +            properties:
> +              reg:
> +                const: 1
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@2:
> +            type: object
> +            description: Endpoint connected to CSI40.
> +
> +            properties:
> +              reg:
> +                const: 2
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint
> +
> +            additionalProperties: false
> +
> +          endpoint@3:
> +            type: object
> +            description: Endpoint connected to CSI41.
> +
> +            properties:
> +              reg:
> +                const: 3
> +
> +              remote-endpoint:
> +                maxItems: 1
> +
> +            required:
> +              - reg
> +              - remote-endpoint

Here and in the other endpoints of port@1, do you need required
properties ? As I read in writing-schema.rts:
"Unless noted otherwise, all properties are required."

> +
> +            additionalProperties: false
> +
> +        additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - clocks
> +  - power-domains
> +  - resets
> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        anyOf:
> +          - const: renesas,vin-r8a7778
> +          - const: renesas,vin-r8a7779
> +          - const: renesas,rcar-gen2-vin
> +then:
> +  required:
> +    - port
> +else:
> +  required:
> +    - renesas,id
> +    - ports
> +
> +additionalProperties: false
> +
> +examples:
> +  # Device node example for Gen2 platform
> +  - |
> +    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a7790-sysc.h>
> +
> +    vin1: vin@e6ef1000 {
> +            compatible = "renesas,vin-r8a7790",
> +                         "renesas,rcar-gen2-vin";
> +            reg = <0 0xe6ef1000 0 0x1000>;
> +            interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 810>;
> +            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
> +            resets = <&cpg 810>;
> +
> +            port {
> +                    vin1ep0: endpoint {
> +                            remote-endpoint = <&adv7180>;
> +                            bus-width = <8>;
> +                    };
> +            };
> +    };
> +
> +  # Device node example for Gen3 platform with only CSI-2
> +  - |
> +    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a7795-sysc.h>
> +
> +    vin0: video@e6ef0000 {
> +            compatible = "renesas,vin-r8a7795";
> +            reg = <0 0xe6ef0000 0 0x1000>;
> +            interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 811>;
> +            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> +            resets = <&cpg 811>;
> +            renesas,id = <0>;
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            vin0csi20: endpoint@0 {
> +                                    reg = <0>;
> +                                    remote-endpoint= <&csi20vin0>;
> +                            };
> +                            vin0csi40: endpoint@2 {
> +                                    reg = <2>;
> +                                    remote-endpoint= <&csi40vin0>;
> +                            };
> +                    };
> +            };
> +    };
> +
> +  # Device node example for Gen3 platform with CSI-2 and parallel
> +  - |
> +    #include <dt-bindings/clock/r8a77970-cpg-mssr.h>
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/power/r8a77970-sysc.h>
> +
> +    vin2: video@e6ef2000 {
> +            compatible = "renesas,vin-r8a77970";
> +            reg = <0 0xe6ef2000 0 0x1000>;
> +            interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
> +            clocks = <&cpg CPG_MOD 809>;
> +            power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> +            resets = <&cpg 809>;
> +            renesas,id = <2>;
> +
> +            ports {
> +                    #address-cells = <1>;
> +                    #size-cells = <0>;
> +
> +                    port@0 {
> +                            reg = <0>;
> +
> +                            vin2_in: endpoint {
> +                                    remote-endpoint = <&adv7612_out>;
> +                                    hsync-active = <0>;
> +                                    vsync-active = <0>;
> +                            };
> +                    };
> +
> +                    port@1 {
> +                            #address-cells = <1>;
> +                            #size-cells = <0>;
> +
> +                            reg = <1>;
> +
> +                            vin2csi40: endpoint@2 {
> +                                    reg = <2>;
> +                                    remote-endpoint = <&csi40vin2>;
> +                            };
> +                    };
> +            };
> +    };

I can't really comment on the json-schema most complex parts, but from
a device point of view, minors apart, it seems sane to me.

Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

Thanks
  j

> --
> 2.23.0
>
Rob Herring Nov. 14, 2019, 2:15 p.m. UTC | #3
On Tue, Nov 12, 2019 at 10:42:31AM +0100, Jacopo Mondi wrote:
> Hi Niklas,
>    thanks for the patch
> 
> On Fri, Nov 08, 2019 at 03:16:09AM +0100, Niklas Söderlund wrote:
> > Convert Renesas R-Car VIN bindings documentation to json-schema.
> >
> > As the examples in the bindings now can be tested add a new one which
> > describes how the both a parallel and a CSI-2 source can be connected on
> > Gen3 SoCs.
> >
> > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
> > ---
> >  .../devicetree/bindings/media/renesas,vin.txt | 217 ----------
> >  .../bindings/media/renesas,vin.yaml           | 409 ++++++++++++++++++
> >  2 files changed, 409 insertions(+), 217 deletions(-)
> >  delete mode 100644 Documentation/devicetree/bindings/media/renesas,vin.txt
> >  create mode 100644 Documentation/devicetree/bindings/media/renesas,vin.yaml


> > diff --git a/Documentation/devicetree/bindings/media/renesas,vin.yaml b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> > new file mode 100644
> > index 0000000000000000..be261d9a98d62dcd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/renesas,vin.yaml
> > @@ -0,0 +1,409 @@
> > +# SPDX-License-Identifier: GPL-2.0
> 
> I think you should use GPL-2.0-only
> 
> > +# Copyright (C) 2019 Renesas Electronics Corp.
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/media/renesas,vin.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Renesas R-Car Video Input (VIN)
> > +
> > +maintainers:
> > +  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
> 
> I also put the mailing lists here, not sure if that's desired.

Not really. A Renesas list is fine, but no need for linux-media as the 
file path will pick that up.

> > +
> > +description: |-
> > +  The R-Car Video Input (VIN) device provides video input capabilities for the
> > +  Renesas R-Car family of devices.
> > +
> > +  Each VIN instance has a single parallel input that supports RGB and YUV video,
> > +  with both external synchronization and BT.656 synchronization for the latter.
> > +  Depending on the instance the VIN input is connected to external SoC pins, or
> > +  on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +        - enum:
> > +          - renesas,vin-r8a7743  # RZ/G1M
> > +          - renesas,vin-r8a7744  # RZ/G1N
> > +          - renesas,vin-r8a7745  # RZ/G1E
> > +          - renesas,vin-r8a77470 # RZ/G1C
> > +          - renesas,vin-r8a7790  # R-Car H2
> > +          - renesas,vin-r8a7791  # R-Car M2-W
> > +          - renesas,vin-r8a7792  # R-Car V2H
> > +          - renesas,vin-r8a7793  # R-Car M2-N
> > +          - renesas,vin-r8a7794  # R-Car E2
> > +        - const: renesas,rcar-gen2-vin # Generic R-Car Gen2 or RZ/G1
> > +
> > +      - items:
> > +        - enum:
> > +          - renesas,vin-r8a774a1 # RZ/G2M
> > +          - renesas,vin-r8a774b1 # RZ/G2N
> > +          - renesas,vin-r8a774c0 # RZ/G2E
> > +          - renesas,vin-r8a7778  # R-Car M1
> > +          - renesas,vin-r8a7779  # R-Car H1
> > +          - renesas,vin-r8a7795  # R-Car H3
> > +          - renesas,vin-r8a7796  # R-Car M3-W
> > +          - renesas,vin-r8a77965 # R-Car M3-N
> > +          - renesas,vin-r8a77970 # R-Car V3M
> > +          - renesas,vin-r8a77980 # R-Car V3H
> > +          - renesas,vin-r8a77990 # R-Car E3
> > +          - renesas,vin-r8a77995 # R-Car D3
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 1
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +  #The per-board settings for Gen2 and RZ/G1 platforms:
> > +  port:
> > +    type: object
> > +    description: |-
> > +      A node containing a parallel input with a singel endpoint definitions as
> > +      documented in
> > +      Documentation/devicetree/bindings/media/video-interfaces.txt
> > +
> > +    properties:
> > +      reg:
> > +        const: 1
> 
> Do you need reg for the single 'port' ?
> 
> > +
> > +      endpoint:
> > +        type: object
> > +
> > +        properties:
> > +          hsync-active:
> > +            description: |-
> > +              Default is active high. If both HSYNC and VSYNC polarities are not
> > +              specified, embedded synchronization is selected.
> > +            enum: [ 0, 1 ]
> > +
> > +          vsync-active:
> > +            description: |-
> > +              Default is active high. If both HSYNC and VSYNC polarities are not
> > +              specified, embedded synchronization is selected.
> > +            enum: [ 0, 1 ]
> > +
> > +          field-active-even:
> > +            description: Default is active high.
> > +            enum: [ 0, 1 ]
> > +
> > +          bus-width:
> > +            enum: [ 8, 10, 12, 16, 24, 32 ]
> > +
> > +          data-shift:
> > +            enum: [ 0, 8 ]
> > +
> > +          data-enable-active:
> > +            description: Polarity of CLKENB signal, default is active high.
> > +            enum: [ 0, 1 ]
> > +
> > +          pclk-sample:
> > +            enum: [ 0, 1 ]
> > +
> > +          data-active:
> > +            enum: [ 0, 1 ]
> > +
> > +          remote-endpoint:
> > +            maxItems: 1
> > +
> > +        required:
> > +          - remote-endpoint
> > +
> > +        additionalProperties: false
> > +
> > +    additionalProperties: false
> > +
> > +  #The per-board settings for Gen3 and RZ/G2 platforms:
> > +  renesas,id:
> > +    description: VIN channel number
> > +    allOf:
> > +      - $ref: /schemas/types.yaml#/definitions/uint32
> > +      - enum: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ]
> > +
> > +  ports:
> > +    type: object
> > +    description: |-
> > +      A node containing input nodes with endpoint definitions as documented in
> > +      Documentation/devicetree/bindings/media/video-interfaces.txt
> > +
> > +    properties:
> > +      port@0:
> > +        type: object
> > +        description: |-
> > +          Input port node, single endpoint describing a parallel input source.
> > +
> > +        properties:
> > +          reg:
> > +            const: 0
> > +
> > +          endpoint:
> > +            type: object
> > +
> > +            properties:
> > +              hsync-active:
> > +                description: |-

Drop the literal block (|-).

> > +                  Default is active high. If both HSYNC and VSYNC polarities are not
> > +                  specified, embedded synchronization is selected.

Express defaults as a schema:

default: 1

> > +                enum: [ 0, 1 ]

Unless a subset of possible values apply, assume this is defined 
elsewhere (hopefully someone converts video-interfaces.txt to schema 
soon).

> > +
> > +              vsync-active:
> > +                description: |-
> > +                  Default is active high. If both HSYNC and VSYNC polarities are not
> > +                  specified, embedded synchronization is selected.
> > +                enum: [ 0, 1 ]
> > +
> > +              field-active-even:
> > +                description: Default is active high.
> > +                enum: [ 0, 1 ]
> > +
> > +              bus-width:
> > +                enum: [ 8, 10, 12, 16, 24, 32 ]
> > +
> > +              data-shift:
> > +                enum: [ 0, 8 ]
> 
> Why are those two not described ? I feel like or you either refrain
> from describing all poperties and point the reader to
> video-interfaces.txt, or you describe all of them, at least to provide
> an indication of the default if the property is not specified.
> 
> > +
> > +              data-enable-active:
> > +                description: Polarity of CLKENB signal, default is active high.
> > +                enum: [ 0, 1 ]
> > +
> > +              pclk-sample:
> > +                enum: [ 0, 1 ]
> > +
> > +              data-active:
> > +                enum: [ 0, 1 ]
> > +
> > +              remote-endpoint:
> > +                maxItems: 1

Just 'true' is enough here. Assume it's defined as a phandle elsewhere.

> > +
> > +            required:
> > +              - remote-endpoint
> > +
> > +            additionalProperties: false
> > +
> > +        additionalProperties: false
> > +
> > +      port@1:
> > +        type: object
> > +        description: |-
> > +          Input port node, multiple endpoints describing all the R-Car CSI-2
> > +          modules connected the VIN.
> > +
> > +        properties:
> > +          '#address-cells':
> > +            const: 1
> > +
> > +          '#size-cells':
> > +            const: 0
> > +
> > +          reg:
> > +            const: 1
> > +
> > +          endpoint@0:
> > +            type: object
> > +            description: Endpoint connected to CSI20.
> > +
> > +            properties:
> > +              reg:
> > +                const: 0
> > +
> > +              remote-endpoint:
> > +                maxItems: 1
> > +
> > +            required:
> > +              - reg
> > +              - remote-endpoint
> > +
> > +            additionalProperties: false
> > +
> > +          endpoint@1:
> > +            type: object
> > +            description: Endpoint connected to CSI21.
> > +
> > +            properties:
> > +              reg:
> > +                const: 1
> > +
> > +              remote-endpoint:
> > +                maxItems: 1
> > +
> > +            required:
> > +              - reg
> > +              - remote-endpoint
> > +
> > +            additionalProperties: false
> > +
> > +          endpoint@2:
> > +            type: object
> > +            description: Endpoint connected to CSI40.
> > +
> > +            properties:
> > +              reg:
> > +                const: 2
> > +
> > +              remote-endpoint:
> > +                maxItems: 1
> > +
> > +            required:
> > +              - reg
> > +              - remote-endpoint
> > +
> > +            additionalProperties: false
> > +
> > +          endpoint@3:
> > +            type: object
> > +            description: Endpoint connected to CSI41.
> > +
> > +            properties:
> > +              reg:
> > +                const: 3
> > +
> > +              remote-endpoint:
> > +                maxItems: 1
> > +
> > +            required:
> > +              - reg
> > +              - remote-endpoint
> 
> Here and in the other endpoints of port@1, do you need required
> properties ? As I read in writing-schema.rts:
> "Unless noted otherwise, all properties are required."

That is referring to schema properties ($id, properties, title, etc.), 
not binding properties. That's also just the top-level 
properties/keywords. If that's confusing, try reading the meta-schemas 
which has schema keywords as both properties and schema.


> > +
> > +            additionalProperties: false
> > +
> > +        additionalProperties: false
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - interrupts
> > +  - clocks
> > +  - power-domains
> > +  - resets
> > +
> > +if:
> > +  properties:
> > +    compatible:
> > +      contains:
> > +        anyOf:
> > +          - const: renesas,vin-r8a7778
> > +          - const: renesas,vin-r8a7779
> > +          - const: renesas,rcar-gen2-vin
> > +then:
> > +  required:
> > +    - port
> > +else:
> > +  required:
> > +    - renesas,id
> > +    - ports
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  # Device node example for Gen2 platform
> > +  - |
> > +    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/power/r8a7790-sysc.h>
> > +
> > +    vin1: vin@e6ef1000 {
> > +            compatible = "renesas,vin-r8a7790",
> > +                         "renesas,rcar-gen2-vin";
> > +            reg = <0 0xe6ef1000 0 0x1000>;
> > +            interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
> > +            clocks = <&cpg CPG_MOD 810>;
> > +            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
> > +            resets = <&cpg 810>;
> > +
> > +            port {
> > +                    vin1ep0: endpoint {
> > +                            remote-endpoint = <&adv7180>;
> > +                            bus-width = <8>;
> > +                    };
> > +            };
> > +    };
> > +
> > +  # Device node example for Gen3 platform with only CSI-2
> > +  - |
> > +    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/power/r8a7795-sysc.h>
> > +
> > +    vin0: video@e6ef0000 {
> > +            compatible = "renesas,vin-r8a7795";
> > +            reg = <0 0xe6ef0000 0 0x1000>;
> > +            interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
> > +            clocks = <&cpg CPG_MOD 811>;
> > +            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
> > +            resets = <&cpg 811>;
> > +            renesas,id = <0>;
> > +
> > +            ports {
> > +                    #address-cells = <1>;
> > +                    #size-cells = <0>;
> > +
> > +                    port@1 {
> > +                            #address-cells = <1>;
> > +                            #size-cells = <0>;
> > +
> > +                            reg = <1>;
> > +
> > +                            vin0csi20: endpoint@0 {
> > +                                    reg = <0>;
> > +                                    remote-endpoint= <&csi20vin0>;
> > +                            };
> > +                            vin0csi40: endpoint@2 {
> > +                                    reg = <2>;
> > +                                    remote-endpoint= <&csi40vin0>;
> > +                            };
> > +                    };
> > +            };
> > +    };
> > +
> > +  # Device node example for Gen3 platform with CSI-2 and parallel
> > +  - |
> > +    #include <dt-bindings/clock/r8a77970-cpg-mssr.h>
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/power/r8a77970-sysc.h>
> > +
> > +    vin2: video@e6ef2000 {
> > +            compatible = "renesas,vin-r8a77970";
> > +            reg = <0 0xe6ef2000 0 0x1000>;
> > +            interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
> > +            clocks = <&cpg CPG_MOD 809>;
> > +            power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
> > +            resets = <&cpg 809>;
> > +            renesas,id = <2>;
> > +
> > +            ports {
> > +                    #address-cells = <1>;
> > +                    #size-cells = <0>;
> > +
> > +                    port@0 {
> > +                            reg = <0>;
> > +
> > +                            vin2_in: endpoint {
> > +                                    remote-endpoint = <&adv7612_out>;
> > +                                    hsync-active = <0>;
> > +                                    vsync-active = <0>;
> > +                            };
> > +                    };
> > +
> > +                    port@1 {
> > +                            #address-cells = <1>;
> > +                            #size-cells = <0>;
> > +
> > +                            reg = <1>;
> > +
> > +                            vin2csi40: endpoint@2 {
> > +                                    reg = <2>;
> > +                                    remote-endpoint = <&csi40vin2>;
> > +                            };
> > +                    };
> > +            };
> > +    };
> 
> I can't really comment on the json-schema most complex parts, but from
> a device point of view, minors apart, it seems sane to me.
> 
> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
> 
> Thanks
>   j
> 
> > --
> > 2.23.0
> >
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/media/renesas,vin.txt b/Documentation/devicetree/bindings/media/renesas,vin.txt
deleted file mode 100644
index 5eefd62ac5c5b9fd..0000000000000000
--- a/Documentation/devicetree/bindings/media/renesas,vin.txt
+++ /dev/null
@@ -1,217 +0,0 @@ 
-Renesas R-Car Video Input driver (rcar_vin)
--------------------------------------------
-
-The rcar_vin device provides video input capabilities for the Renesas R-Car
-family of devices.
-
-Each VIN instance has a single parallel input that supports RGB and YUV video,
-with both external synchronization and BT.656 synchronization for the latter.
-Depending on the instance the VIN input is connected to external SoC pins, or
-on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
-
- - compatible: Must be one or more of the following
-   - "renesas,vin-r8a7743" for the R8A7743 device
-   - "renesas,vin-r8a7744" for the R8A7744 device
-   - "renesas,vin-r8a7745" for the R8A7745 device
-   - "renesas,vin-r8a77470" for the R8A77470 device
-   - "renesas,vin-r8a774a1" for the R8A774A1 device
-   - "renesas,vin-r8a774b1" for the R8A774B1 device
-   - "renesas,vin-r8a774c0" for the R8A774C0 device
-   - "renesas,vin-r8a7778" for the R8A7778 device
-   - "renesas,vin-r8a7779" for the R8A7779 device
-   - "renesas,vin-r8a7790" for the R8A7790 device
-   - "renesas,vin-r8a7791" for the R8A7791 device
-   - "renesas,vin-r8a7792" for the R8A7792 device
-   - "renesas,vin-r8a7793" for the R8A7793 device
-   - "renesas,vin-r8a7794" for the R8A7794 device
-   - "renesas,vin-r8a7795" for the R8A7795 device
-   - "renesas,vin-r8a7796" for the R8A7796 device
-   - "renesas,vin-r8a77965" for the R8A77965 device
-   - "renesas,vin-r8a77970" for the R8A77970 device
-   - "renesas,vin-r8a77980" for the R8A77980 device
-   - "renesas,vin-r8a77990" for the R8A77990 device
-   - "renesas,vin-r8a77995" for the R8A77995 device
-   - "renesas,rcar-gen2-vin" for a generic R-Car Gen2 or RZ/G1 compatible
-     device.
-
-   When compatible with the generic version nodes must list the
-   SoC-specific version corresponding to the platform first
-   followed by the generic version.
-
- - reg: the register base and size for the device registers
- - interrupts: the interrupt for the device
- - clocks: Reference to the parent clock
-
-The per-board settings for Gen2 and RZ/G1 platforms:
-
-- port - sub-node describing a single endpoint connected to the VIN
-  from external SoC pins as described in video-interfaces.txt[1].
-  Only the first one will be considered as each vin interface has one
-  input port.
-
-  - Optional properties for endpoint nodes:
-    - hsync-active: see [1] for description. Default is active high.
-    - vsync-active: see [1] for description. Default is active high.
-      If both HSYNC and VSYNC polarities are not specified, embedded
-      synchronization is selected.
-    - field-active-even: see [1] for description. Default is active high.
-    - bus-width: see [1] for description. The selected bus width depends on
-      the SoC type and selected input image format.
-      Valid values are: 8, 10, 12, 16, 24 and 32.
-    - data-shift: see [1] for description. Valid values are 0 and 8.
-    - data-enable-active: polarity of CLKENB signal, see [1] for
-      description. Default is active high.
-
-The per-board settings for Gen3 and RZ/G2 platforms:
-
-Gen3 and RZ/G2 platforms can support both a single connected parallel input
-source from external SoC pins (port@0) and/or multiple parallel input sources
-from local SoC CSI-2 receivers (port@1) depending on SoC.
-
-- renesas,id - ID number of the VIN, VINx in the documentation.
-- ports
-    - port@0 - sub-node describing a single endpoint connected to the VIN
-      from external SoC pins as described in video-interfaces.txt[1].
-      Describing more than one endpoint in port@0 is invalid. Only VIN
-      instances that are connected to external pins should have port@0.
-
-      Endpoint nodes of port@0 support the optional properties listed in
-      the Gen2 per-board settings description.
-
-    - port@1 - sub-nodes describing one or more endpoints connected to
-      the VIN from local SoC CSI-2 receivers. The endpoint numbers must
-      use the following schema.
-
-        - endpoint@0 - sub-node describing the endpoint connected to CSI20
-        - endpoint@1 - sub-node describing the endpoint connected to CSI21
-        - endpoint@2 - sub-node describing the endpoint connected to CSI40
-        - endpoint@3 - sub-node describing the endpoint connected to CSI41
-
-      Endpoint nodes of port@1 do not support any optional endpoint property.
-
-Device node example for Gen2 platforms
---------------------------------------
-
-        aliases {
-                vin0 = &vin0;
-        };
-
-        vin0: vin@e6ef0000 {
-                compatible = "renesas,vin-r8a7790", "renesas,rcar-gen2-vin";
-                clocks = <&mstp8_clks R8A7790_CLK_VIN0>;
-                reg = <0 0xe6ef0000 0 0x1000>;
-                interrupts = <0 188 IRQ_TYPE_LEVEL_HIGH>;
-                status = "disabled";
-        };
-
-Board setup example for Gen2 platforms (vin1 composite video input)
--------------------------------------------------------------------
-
-&i2c2   {
-        status = "okay";
-        pinctrl-0 = <&i2c2_pins>;
-        pinctrl-names = "default";
-
-        adv7180@20 {
-                compatible = "adi,adv7180";
-                reg = <0x20>;
-                remote = <&vin1>;
-
-                port {
-                        adv7180: endpoint {
-                                bus-width = <8>;
-                                remote-endpoint = <&vin1ep0>;
-                        };
-                };
-        };
-};
-
-/* composite video input */
-&vin1 {
-        pinctrl-0 = <&vin1_pins>;
-        pinctrl-names = "default";
-
-        status = "okay";
-
-        port {
-                vin1ep0: endpoint {
-                        remote-endpoint = <&adv7180>;
-                        bus-width = <8>;
-                };
-        };
-};
-
-Device node example for Gen3 platforms
---------------------------------------
-
-        vin0: video@e6ef0000 {
-                compatible = "renesas,vin-r8a7795";
-                reg = <0 0xe6ef0000 0 0x1000>;
-                interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
-                clocks = <&cpg CPG_MOD 811>;
-                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
-                resets = <&cpg 811>;
-                renesas,id = <0>;
-
-                ports {
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-
-                        port@1 {
-                                #address-cells = <1>;
-                                #size-cells = <0>;
-
-                                reg = <1>;
-
-                                vin0csi20: endpoint@0 {
-                                        reg = <0>;
-                                        remote-endpoint= <&csi20vin0>;
-                                };
-                                vin0csi21: endpoint@1 {
-                                        reg = <1>;
-                                        remote-endpoint= <&csi21vin0>;
-                                };
-                                vin0csi40: endpoint@2 {
-                                        reg = <2>;
-                                        remote-endpoint= <&csi40vin0>;
-                                };
-                        };
-                };
-        };
-
-        csi20: csi2@fea80000 {
-                compatible = "renesas,r8a7795-csi2";
-                reg = <0 0xfea80000 0 0x10000>;
-                interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
-                clocks = <&cpg CPG_MOD 714>;
-                power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
-                resets = <&cpg 714>;
-
-                ports {
-                        #address-cells = <1>;
-                        #size-cells = <0>;
-
-                        port@0 {
-                                reg = <0>;
-                                csi20_in: endpoint {
-                                        clock-lanes = <0>;
-                                        data-lanes = <1>;
-                                        remote-endpoint = <&adv7482_txb>;
-                                };
-                        };
-
-                        port@1 {
-                                #address-cells = <1>;
-                                #size-cells = <0>;
-
-                                reg = <1>;
-
-                                csi20vin0: endpoint@0 {
-                                        reg = <0>;
-                                        remote-endpoint = <&vin0csi20>;
-                                };
-                        };
-                };
-        };
-
-[1] video-interfaces.txt common video media interface
diff --git a/Documentation/devicetree/bindings/media/renesas,vin.yaml b/Documentation/devicetree/bindings/media/renesas,vin.yaml
new file mode 100644
index 0000000000000000..be261d9a98d62dcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/renesas,vin.yaml
@@ -0,0 +1,409 @@ 
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/renesas,vin.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Video Input (VIN)
+
+maintainers:
+  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
+
+description: |-
+  The R-Car Video Input (VIN) device provides video input capabilities for the
+  Renesas R-Car family of devices.
+
+  Each VIN instance has a single parallel input that supports RGB and YUV video,
+  with both external synchronization and BT.656 synchronization for the latter.
+  Depending on the instance the VIN input is connected to external SoC pins, or
+  on Gen3 and RZ/G2 platforms to a CSI-2 receiver.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+        - enum:
+          - renesas,vin-r8a7743  # RZ/G1M
+          - renesas,vin-r8a7744  # RZ/G1N
+          - renesas,vin-r8a7745  # RZ/G1E
+          - renesas,vin-r8a77470 # RZ/G1C
+          - renesas,vin-r8a7790  # R-Car H2
+          - renesas,vin-r8a7791  # R-Car M2-W
+          - renesas,vin-r8a7792  # R-Car V2H
+          - renesas,vin-r8a7793  # R-Car M2-N
+          - renesas,vin-r8a7794  # R-Car E2
+        - const: renesas,rcar-gen2-vin # Generic R-Car Gen2 or RZ/G1
+
+      - items:
+        - enum:
+          - renesas,vin-r8a774a1 # RZ/G2M
+          - renesas,vin-r8a774b1 # RZ/G2N
+          - renesas,vin-r8a774c0 # RZ/G2E
+          - renesas,vin-r8a7778  # R-Car M1
+          - renesas,vin-r8a7779  # R-Car H1
+          - renesas,vin-r8a7795  # R-Car H3
+          - renesas,vin-r8a7796  # R-Car M3-W
+          - renesas,vin-r8a77965 # R-Car M3-N
+          - renesas,vin-r8a77970 # R-Car V3M
+          - renesas,vin-r8a77980 # R-Car V3H
+          - renesas,vin-r8a77990 # R-Car E3
+          - renesas,vin-r8a77995 # R-Car D3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  #The per-board settings for Gen2 and RZ/G1 platforms:
+  port:
+    type: object
+    description: |-
+      A node containing a parallel input with a singel endpoint definitions as
+      documented in
+      Documentation/devicetree/bindings/media/video-interfaces.txt
+
+    properties:
+      reg:
+        const: 1
+
+      endpoint:
+        type: object
+
+        properties:
+          hsync-active:
+            description: |-
+              Default is active high. If both HSYNC and VSYNC polarities are not
+              specified, embedded synchronization is selected.
+            enum: [ 0, 1 ]
+
+          vsync-active:
+            description: |-
+              Default is active high. If both HSYNC and VSYNC polarities are not
+              specified, embedded synchronization is selected.
+            enum: [ 0, 1 ]
+
+          field-active-even:
+            description: Default is active high.
+            enum: [ 0, 1 ]
+
+          bus-width:
+            enum: [ 8, 10, 12, 16, 24, 32 ]
+
+          data-shift:
+            enum: [ 0, 8 ]
+
+          data-enable-active:
+            description: Polarity of CLKENB signal, default is active high.
+            enum: [ 0, 1 ]
+
+          pclk-sample:
+            enum: [ 0, 1 ]
+
+          data-active:
+            enum: [ 0, 1 ]
+
+          remote-endpoint:
+            maxItems: 1
+
+        required:
+          - remote-endpoint
+
+        additionalProperties: false
+
+    additionalProperties: false
+
+  #The per-board settings for Gen3 and RZ/G2 platforms:
+  renesas,id:
+    description: VIN channel number
+    allOf:
+      - $ref: /schemas/types.yaml#/definitions/uint32
+      - enum: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 ]
+
+  ports:
+    type: object
+    description: |-
+      A node containing input nodes with endpoint definitions as documented in
+      Documentation/devicetree/bindings/media/video-interfaces.txt
+
+    properties:
+      port@0:
+        type: object
+        description: |-
+          Input port node, single endpoint describing a parallel input source.
+
+        properties:
+          reg:
+            const: 0
+
+          endpoint:
+            type: object
+
+            properties:
+              hsync-active:
+                description: |-
+                  Default is active high. If both HSYNC and VSYNC polarities are not
+                  specified, embedded synchronization is selected.
+                enum: [ 0, 1 ]
+
+              vsync-active:
+                description: |-
+                  Default is active high. If both HSYNC and VSYNC polarities are not
+                  specified, embedded synchronization is selected.
+                enum: [ 0, 1 ]
+
+              field-active-even:
+                description: Default is active high.
+                enum: [ 0, 1 ]
+
+              bus-width:
+                enum: [ 8, 10, 12, 16, 24, 32 ]
+
+              data-shift:
+                enum: [ 0, 8 ]
+
+              data-enable-active:
+                description: Polarity of CLKENB signal, default is active high.
+                enum: [ 0, 1 ]
+
+              pclk-sample:
+                enum: [ 0, 1 ]
+
+              data-active:
+                enum: [ 0, 1 ]
+
+              remote-endpoint:
+                maxItems: 1
+
+            required:
+              - remote-endpoint
+
+            additionalProperties: false
+
+        additionalProperties: false
+
+      port@1:
+        type: object
+        description: |-
+          Input port node, multiple endpoints describing all the R-Car CSI-2
+          modules connected the VIN.
+
+        properties:
+          '#address-cells':
+            const: 1
+
+          '#size-cells':
+            const: 0
+
+          reg:
+            const: 1
+
+          endpoint@0:
+            type: object
+            description: Endpoint connected to CSI20.
+
+            properties:
+              reg:
+                const: 0
+
+              remote-endpoint:
+                maxItems: 1
+
+            required:
+              - reg
+              - remote-endpoint
+
+            additionalProperties: false
+
+          endpoint@1:
+            type: object
+            description: Endpoint connected to CSI21.
+
+            properties:
+              reg:
+                const: 1
+
+              remote-endpoint:
+                maxItems: 1
+
+            required:
+              - reg
+              - remote-endpoint
+
+            additionalProperties: false
+
+          endpoint@2:
+            type: object
+            description: Endpoint connected to CSI40.
+
+            properties:
+              reg:
+                const: 2
+
+              remote-endpoint:
+                maxItems: 1
+
+            required:
+              - reg
+              - remote-endpoint
+
+            additionalProperties: false
+
+          endpoint@3:
+            type: object
+            description: Endpoint connected to CSI41.
+
+            properties:
+              reg:
+                const: 3
+
+              remote-endpoint:
+                maxItems: 1
+
+            required:
+              - reg
+              - remote-endpoint
+
+            additionalProperties: false
+
+        additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - power-domains
+  - resets
+
+if:
+  properties:
+    compatible:
+      contains:
+        anyOf:
+          - const: renesas,vin-r8a7778
+          - const: renesas,vin-r8a7779
+          - const: renesas,rcar-gen2-vin
+then:
+  required:
+    - port
+else:
+  required:
+    - renesas,id
+    - ports
+
+additionalProperties: false
+
+examples:
+  # Device node example for Gen2 platform
+  - |
+    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7790-sysc.h>
+
+    vin1: vin@e6ef1000 {
+            compatible = "renesas,vin-r8a7790",
+                         "renesas,rcar-gen2-vin";
+            reg = <0 0xe6ef1000 0 0x1000>;
+            interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 810>;
+            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+            resets = <&cpg 810>;
+
+            port {
+                    vin1ep0: endpoint {
+                            remote-endpoint = <&adv7180>;
+                            bus-width = <8>;
+                    };
+            };
+    };
+
+  # Device node example for Gen3 platform with only CSI-2
+  - |
+    #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7795-sysc.h>
+
+    vin0: video@e6ef0000 {
+            compatible = "renesas,vin-r8a7795";
+            reg = <0 0xe6ef0000 0 0x1000>;
+            interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 811>;
+            power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
+            resets = <&cpg 811>;
+            renesas,id = <0>;
+
+            ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@1 {
+                            #address-cells = <1>;
+                            #size-cells = <0>;
+
+                            reg = <1>;
+
+                            vin0csi20: endpoint@0 {
+                                    reg = <0>;
+                                    remote-endpoint= <&csi20vin0>;
+                            };
+                            vin0csi40: endpoint@2 {
+                                    reg = <2>;
+                                    remote-endpoint= <&csi40vin0>;
+                            };
+                    };
+            };
+    };
+
+  # Device node example for Gen3 platform with CSI-2 and parallel
+  - |
+    #include <dt-bindings/clock/r8a77970-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a77970-sysc.h>
+
+    vin2: video@e6ef2000 {
+            compatible = "renesas,vin-r8a77970";
+            reg = <0 0xe6ef2000 0 0x1000>;
+            interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 809>;
+            power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+            resets = <&cpg 809>;
+            renesas,id = <2>;
+
+            ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@0 {
+                            reg = <0>;
+
+                            vin2_in: endpoint {
+                                    remote-endpoint = <&adv7612_out>;
+                                    hsync-active = <0>;
+                                    vsync-active = <0>;
+                            };
+                    };
+
+                    port@1 {
+                            #address-cells = <1>;
+                            #size-cells = <0>;
+
+                            reg = <1>;
+
+                            vin2csi40: endpoint@2 {
+                                    reg = <2>;
+                                    remote-endpoint = <&csi40vin2>;
+                            };
+                    };
+            };
+    };