* Omnivision OV7670 CMOS sensor The Omnivision OV7670 sensor supports multiple resolutions output, such as CIF, SVGA, UXGA. It also can support the YUV422/420, RGB565/555 or raw RGB output formats. Required Properties: - compatible: should be "ovti,ov7670" - clocks: reference to the xclk input clock. - clock-names: should be "xclk". Required Endpoint Properties: - hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively. - vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively. Optional Properties: - reset-gpios: reference to the GPIO connected to the resetb pin, if any. Active is low. - powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any. Active is high. - ov7670,pclk-hb-disable: a boolean property to suppress pixel clock output signal during horizontal blankings. The device node must contain one 'port' child node with one 'endpoint' child sub-node for its digital output video port, in accordance with the video interface bindings defined in: Documentation/devicetree/bindings/media/video-interfaces.txt. Example: i2c1: i2c@f0018000 { ov7670: camera@21 { compatible = "ovti,ov7670"; reg = <0x21>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>; reset-gpios = <&pioE 11 GPIO_ACTIVE_LOW>; powerdown-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>; clocks = <&pck0>; clock-names = "xclk"; assigned-clocks = <&pck0>; assigned-clock-rates = <25000000>; ov7670,pclk-hb-disable; port { ov7670_0: endpoint { hsync-active = <0>; vsync-active = <0>; remote-endpoint = <&isi_0>; }; }; }; };