dt-bindings: media: Convert marvell,mmp2-ccic to json-schema

Marvell MMP2 camera host interface

Required properties:

 - compatible: Should be "marvell,mmp2-ccic".

 - reg: Register base and size.

 - interrupts: The interrupt number.

 - #clock-cells: Must be 0.

Optional properties:

 - clocks: Reference to the input clock as specified by

           Documentation/devicetree/bindings/clock/clock-bindings.txt.

 - clock-names: Names of the clocks used; "axi" for the AXI bus interface,

                "func" for the peripheral clock and "phy" for the parallel

                video bus interface.

 - clock-output-names: Optional clock source for sensors. Shall be "mclk".

Required subnodes:

 - port: The parallel bus interface port with a single endpoint linked to

         the sensor's endpoint as described in

         Documentation/devicetree/bindings/media/video-interfaces.txt.

Required endpoint properties:

 - bus-type: data bus type, <5> or <6> for Parallel or Bt.656 respectively

 - pclk-sample: pixel clock polarity

 - hsync-active: horizontal synchronization polarity (only required for

   parallel bus)

 - vsync-active: vertical synchronization polarity (only required for

   parallel bus)

Example:

	camera0: camera@d420a000 {

		compatible = "marvell,mmp2-ccic";

		reg = <0xd420a000 0x800>;

		interrupts = <42>;

		clocks = <&soc_clocks MMP2_CLK_CCIC0>;

		clock-names = "axi";

		#clock-cells = <0>;

		clock-output-names = "mclk";

		port {

			camera0_0: endpoint {

				remote-endpoint = <&ov7670_0>;

                                bus-type = <5>;      /* Parallel */

                                hsync-active = <1>;  /* Active high */

                                vsync-active = <1>;  /* Active high */

                                pclk-sample = <0>;   /* Falling */

			};

		};

	};

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

# Copyright 2019,2020 Lubomir Rintel <lkundrak@v3.sk>

%YAML 1.2

---

$id: http://devicetree.org/schemas/media/marvell,mmp2-ccic.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Marvell MMP2 camera host interface bindings

maintainers:

  - Lubomir Rintel <lkundrak@v3.sk>

properties:

  $nodename:

    pattern: '^camera@[a-f0-9]+$'

  compatible:

    const: marvell,mmp2-ccic

  reg:

    maxItems: 1

  interrupts:

    maxItems: 1

  port:

    type: object

    additionalProperties: false

    properties:

      endpoint:

        type: object

        additionalProperties: false

        # Properties described in

        # Documentation/devicetree/bindings/media/video-interfaces.txt

        properties:

          remote-endpoint: true

          hsync-active: true

          vsync-active: true

          pclk-sample: true

          bus-type: true

        required:

          - remote-endpoint

    required:

      - endpoint

  clocks:

    minItems: 1

    maxItems: 3

    items:

      - description: AXI bus interface clock

      - description: Peripheral clock

      - description: Parallel video bus interface clock

  clock-names:

    const: axi

  '#clock-cells':

    const: 0

  clock-output-names:

    const: mclk

required:

  - compatible

  - reg

  - interrupts

  - port

additionalProperties: false

examples:

  - |

    #include <dt-bindings/clock/marvell,mmp2.h>

    camera@d420a000 {

      compatible = "marvell,mmp2-ccic";

      reg = <0xd420a000 0x800>;

      interrupts = <42>;

      clocks = <&soc_clocks MMP2_CLK_CCIC0>;

      clock-names = "axi";

      #clock-cells = <0>;

      clock-output-names = "mclk";

      port {

        camera0_0: endpoint {

          remote-endpoint = <&ov7670_0>;

          bus-type = <5>;      /* Parallel */

          hsync-active = <1>;  /* Active high */

          vsync-active = <1>;  /* Active high */

          pclk-sample = <0>;   /* Falling */

        };

      };

    };

...