| * 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>; |
| }; |
| }; |
| }; |
| }; |