Documentation/devicetree/bindings/media/i2c/ovti,ov7740.txt

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/media/i2c/ovti,ov7740.txt

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Linux kernel
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Documentation/devicetree/bindings/media/i2c/ovti,ov7740.txt
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.txt
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Support Tooling And Documentation
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Documentation
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Support Tooling And Documentation: documentation
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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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The Omnivision OV7740 image sensor supports multiple output image
size, such as VGA, and QVGA, CIF and any size smaller. It also
supports the RAW RGB and YUV output formats.

The common video interfaces bindings (see video-interfaces.txt) should
be used to specify link to the image data receiver. The OV7740 device
node should contain one 'port' child node with an 'endpoint' subnode.

Required Properties:
- compatible:	"ovti,ov7740".
- reg:		I2C slave address of the sensor.
- clocks:	Reference to the xvclk input clock.
- clock-names:	"xvclk".

Optional Properties:
- reset-gpios: Rreference to the GPIO connected to the reset_b pin,
  if any. Active low with pull-ip resistor.
- powerdown-gpios: Reference to the GPIO connected to the pwdn pin,
  if any. Active high with pull-down resistor.

Endpoint node mandatory properties:
- remote-endpoint: A phandle to the bus receiver's endpoint node.

Example:

	i2c1: i2c@fc028000 {
		ov7740: camera@21 {
			compatible = "ovti,ov7740";
			reg = <0x21>;
			pinctrl-names = "default";
			pinctrl-0 = <&pinctrl_sensor_power &pinctrl_sensor_reset>;
			clocks = <&isc>;
			clock-names = "xvclk";
			assigned-clocks = <&isc>;
			assigned-clock-rates = <24000000>;
			reset-gpios = <&pioA 43 GPIO_ACTIVE_LOW>;
			powerdown-gpios = <&pioA 44 GPIO_ACTIVE_HIGH>;

			port {
				ov7740_0: endpoint {
					remote-endpoint = <&isc_0>;
				};
			};
		};
	};

Annotation

Implementation Notes