ov7670.txt

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    1 * Omnivision OV7670 CMOS sensor
    2 
    3 The Omnivision OV7670 sensor supports multiple resolutions output, such as
    4 CIF, SVGA, UXGA. It also can support the YUV422/420, RGB565/555 or raw RGB
    5 output formats.
    6 
    7 Required Properties:
    8 - compatible: should be "ovti,ov7670"
    9 - clocks: reference to the xclk input clock.
   10 - clock-names: should be "xclk".
   11 
   12 Required 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 
   16 Optional 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 
   24 The device node must contain one 'port' child node with one 'endpoint' child
   25 sub-node for its digital output video port, in accordance with the video
   26 interface bindings defined in:
   27 Documentation/devicetree/bindings/media/video-interfaces.txt.
   28 
   29 Example:
   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         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/media/i2c/ov7670.txt

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sys/contrib/device-tree/Bindings/media/i2c/ov7670.txt