dt-bindings: media: i2c: Document add ov2680

Change-Id: Ib1acb84e4a21a8dc380fc1b556b3b5dfcf6692ae
Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com>

Documentation/devicetree/bindings/media/i2c/ov2680.txt

@@ -0,0 +1,43 @@
+* Omnivision OV2680 MIPI CSI-2 sensor
+
+Required Properties:
+- compatible: should be "ovti,ov2680"
+- clocks: reference to the 24M xvclk input clock.
+- clock-names: should be "xvclk".
+- dovdd-supply: Digital I/O voltage supply, 1.8 volts
+- avdd-supply: Analog voltage supply, 2.8 volts
+- dvdd-supply: Digital core voltage supply, 1.5 volts
+- powerdown-gpios: Low active powerdown gpio
+
+Attention:
+OV2680 device address 0x6c(8bit) or 0x20(8bit) is decided by SID pin;
+
+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:
+	ov2680: ov2680@36 {  // or ov2680: ov2680@10
+		status = "okay";
+		compatible = "ovti,ov2680";
+		reg = <0x36>; //or reg = <0x10>;
+		clocks = <&cru SCLK_CIF_OUT>;
+		clock-names = "xvclk";
+
+		avdd-supply = <&vcc2v8_dvp>;
+		dovdd-supply = <&vcc1v8_dvp>;
+		dvdd-supply = <&vdd1v5_dvp>;
+		pinctrl-names = "rockchip,camera_default";
+		pinctrl-0 = <&cif_clkout_m0>;
+		pwdn-gpios = <&gpio2 13 GPIO_ACTIVE_LOW>;
+		rockchip,camera-module-index = <1>;
+		rockchip,camera-module-facing = "back";
+		rockchip,camera-module-name = "default";
+		rockchip,camera-module-lens-name = "default";
+		port {
+			ucam_out: endpoint {
+				remote-endpoint = <&mipi_in_ucam>;
+				data-lanes = <1>;
+			};
+		};
+	};