dt-bindings: media: i2c: Document add os05a20

Signed-off-by: Zefa Chen <zefa.chen@rock-chips.com>
Change-Id: Ic36a7c6dca137309ff7649d9a7227200babbcfd1

Documentation/devicetree/bindings/media/i2c/os05a20.txt

@@ -0,0 +1,48 @@
+* Ovti os05a20 MIPI sensor
+
+Required Properties:
+- compatible: should be "ovti,os05a20"
+- 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, 1.2 volts
+- reset-gpios: Low active reset gpio
+
+Attention:
+os05a20 device address 0x36(7bit) or 0x10(7bit) 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:
+//rv1126 evb13 board
+&i2c1 {
+	status = "okay";
+	os05a20: os05a20@36 {
+		compatible = "ovti,os05a20";
+		reg = <0x36>;
+		clocks = <&cru CLK_MIPICSI_OUT>;
+		clock-names = "xvclk";
+		power-domains = <&power RV1126_PD_VI>;
+		pinctrl-names = "rockchip,camera_default";
+		pinctrl-0 = <&mipicsi_clk0>;
+		avdd-supply = <&vcc_avdd>;
+		dovdd-supply = <&vcc_dovdd>;
+		dvdd-supply = <&vcc_dvdd>;
+		power-gpios = <&gpio3 RK_PA6 GPIO_ACTIVE_HIGH>;
+		pwdn-gpios = <&gpio1 RK_PD4 GPIO_ACTIVE_HIGH>;
+		rockchip,camera-module-index = <1>;
+		rockchip,camera-module-facing = "front";
+		rockchip,camera-module-name = "JSD3425-C1";
+		rockchip,camera-module-lens-name = "JSD3425-C1-36IRC-4M-F20";
+		ir-cut = <&cam_ircut0>;
+		port {
+			ucam_out0: endpoint {
+				remote-endpoint = <&mipi_in_ucam0>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+	};
+};