1* Omnivision OV7670 CMOS sensor 2 3The Omnivision OV7670 sensor supports multiple resolutions output, such as 4CIF, SVGA, UXGA. It also can support the YUV422/420, RGB565/555 or raw RGB 5output 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 output 22 signal during horizontal blankings. 23 24The device node must contain one 'port' child node with one 'endpoint' child 25sub-node for its digital output video port, in accordance with the video 26interface 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