93 lines
3 KiB
Plaintext
Executable file
93 lines
3 KiB
Plaintext
Executable file
* Omnivision OV5640 MIPI CSI-2 / parallel sensor
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Required Properties:
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- compatible: should be "ovti,ov5640"
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- clocks: reference to the xclk input clock.
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- clock-names: should be "xclk".
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- DOVDD-supply: Digital I/O voltage supply, 1.8 volts
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- AVDD-supply: Analog voltage supply, 2.8 volts
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- DVDD-supply: Digital core voltage supply, 1.5 volts
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Optional Properties:
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- reset-gpios: reference to the GPIO connected to the reset pin, if any.
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This is an active low signal to the OV5640.
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- powerdown-gpios: reference to the GPIO connected to the powerdown pin,
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if any. This is an active high signal to the OV5640.
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- rotation: as defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt,
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valid values are 0 (sensor mounted upright) and 180 (sensor
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mounted upside down).
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The device node must contain one 'port' child node for its digital output
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video port, in accordance with the video interface bindings defined in
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Documentation/devicetree/bindings/media/video-interfaces.txt.
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OV5640 can be connected to a MIPI CSI-2 bus or a parallel bus endpoint.
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Endpoint node required properties for CSI-2 connection are:
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- remote-endpoint: a phandle to the bus receiver's endpoint node.
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- clock-lanes: should be set to <0> (clock lane on hardware lane 0)
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- data-lanes: should be set to <1> or <1 2> (one or two CSI-2 lanes supported)
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Endpoint node required properties for parallel connection are:
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- remote-endpoint: a phandle to the bus receiver's endpoint node.
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- bus-width: shall be set to <8> for 8 bits parallel bus
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or <10> for 10 bits parallel bus
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- data-shift: shall be set to <2> for 8 bits parallel bus
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(lines 9:2 are used) or <0> for 10 bits parallel bus
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- hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
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- vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
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- pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
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signal.
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Examples:
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&i2c1 {
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ov5640: camera@3c {
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compatible = "ovti,ov5640";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_ov5640>;
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reg = <0x3c>;
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clocks = <&clks IMX6QDL_CLK_CKO>;
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clock-names = "xclk";
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DOVDD-supply = <&vgen4_reg>; /* 1.8v */
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AVDD-supply = <&vgen3_reg>; /* 2.8v */
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DVDD-supply = <&vgen2_reg>; /* 1.5v */
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powerdown-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
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reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
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rotation = <180>;
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port {
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/* MIPI CSI-2 bus endpoint */
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ov5640_to_mipi_csi2: endpoint {
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remote-endpoint = <&mipi_csi2_from_ov5640>;
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clock-lanes = <0>;
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data-lanes = <1 2>;
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};
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};
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};
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};
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&i2c1 {
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ov5640: camera@3c {
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compatible = "ovti,ov5640";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_ov5640>;
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reg = <0x3c>;
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clocks = <&clk_ext_camera>;
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clock-names = "xclk";
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port {
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/* Parallel bus endpoint */
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ov5640_to_parallel: endpoint {
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remote-endpoint = <¶llel_from_ov5640>;
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bus-width = <8>;
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data-shift = <2>; /* lines 9:2 are used */
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hsync-active = <0>;
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vsync-active = <0>;
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pclk-sample = <1>;
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};
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};
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};
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};
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