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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