* BF20A2 1/10-Inch 0.3Mp SOC Camera

The BYD BF20A2 is a 1/10-inch SOC camera, with an active array size of
640H x 480V. It is programmable through a SCCB. The BF20A2 sensor supports
SVGA. It also can support YUV422 or raw RGB output formats.

Required Properties:
- compatible: Must be "byd,bf20a2"
- reg: I2C slave address
- clocks: reference to the xvclk input clock.
- clock-names: should be "xvclk".
- dovdd-supply: Digital I/O voltage supply, 1.7~3.1 volts
- avdd-supply: Analog voltage supply, 2.8 volts
- powerdown-gpios: High active powerdown gpio

The device node must contain one 'port' child node for its digital output
video port, in accordance with the video interface bindings defined in
Documentation/devicetree/bindings/media/video-interfaces.txt.

Example:
&i2c2 {
	status = "okay";

	bf20a2: bf20a2@6e {
		status = "okay";
		compatible = "byd,bf20a2";
		reg = <0x6e>;
		clocks = <&cru SCLK_CIF_OUT>;
		clock-names = "xvclk";

		avdd-supply = <&vcc2v8_dvp>;
		dovdd-supply = <&vcc2v8_dvp>;
		pinctrl-names = "default";
		pinctrl-0 = <&cif_clkout_m0>;
		pwdn-gpios = <&gpio2 13 GPIO_ACTIVE_HIGH>;
		rockchip,camera-module-index = <0>;
		rockchip,camera-module-facing = "back";
		rockchip,camera-module-name = "default";
		rockchip,camera-module-lens-name = "default";

		port {
			bf20a2_out: endpoint {
				remote-endpoint = <&dvp_in_bcam>;
			};
		};
	};
};
