56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
|
* 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>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|