media: dt-bindings: marvell,mmp2-ccic: Add Marvell MMP2 camera

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 */

			};

		};

	};