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1* Omnivision OV7670 CMOS sensor2 3The Omnivision OV7670 sensor supports multiple resolutions output, such as4CIF, SVGA, UXGA. It also can support the YUV422/420, RGB565/555 or raw RGB5output formats.6 7Required Properties:8- compatible: should be "ovti,ov7670"9- clocks: reference to the xclk input clock.10- clock-names: should be "xclk".11 12Required Endpoint Properties:13- hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.14- vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.15 16Optional Properties:17- reset-gpios: reference to the GPIO connected to the resetb pin, if any.18 Active is low.19- powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any.20 Active is high.21- ov7670,pclk-hb-disable: a boolean property to suppress pixel clock output22 signal during horizontal blankings.23 24The device node must contain one 'port' child node with one 'endpoint' child25sub-node for its digital output video port, in accordance with the video26interface bindings defined in:27Documentation/devicetree/bindings/media/video-interfaces.txt.28 29Example:30 31 i2c1: i2c@f0018000 {32 ov7670: camera@21 {33 compatible = "ovti,ov7670";34 reg = <0x21>;35 pinctrl-names = "default";36 pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;37 reset-gpios = <&pioE 11 GPIO_ACTIVE_LOW>;38 powerdown-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;39 clocks = <&pck0>;40 clock-names = "xclk";41 assigned-clocks = <&pck0>;42 assigned-clock-rates = <25000000>;43 44 ov7670,pclk-hb-disable;45 46 port {47 ov7670_0: endpoint {48 hsync-active = <0>;49 vsync-active = <0>;50 51 remote-endpoint = <&isi_0>;52 };53 };54 };55 };56