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Commit 495f014d authored by Hugues Fruchet's avatar Hugues Fruchet Committed by Mauro Carvalho Chehab
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media: dt-bindings: ov5640: refine CSI-2 and add parallel interface 



Refine CSI-2 endpoint documentation and add bindings
for DVP parallel interface support.

Signed-off-by: default avatarHugues Fruchet <hugues.fruchet@st.com>
Signed-off-by: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 0f7acb52

Documentation/devicetree/bindings/media/i2c/ov5640.txt

+44 −2
Original line number Diff line number Diff line 
* Omnivision OV5640 MIPI CSI-2 sensor

* Omnivision OV5640 MIPI CSI-2 / parallel sensor



Required Properties:

- compatible: should be "ovti,ov5640"
@@ -18,7 +18,25 @@ The device node must contain one 'port' child node for its digital output 
video port, in accordance with the video interface bindings defined in

Documentation/devicetree/bindings/media/video-interfaces.txt.



Example:

OV5640 can be connected to a MIPI CSI-2 bus or a parallel bus endpoint.



Endpoint node required properties for CSI-2 connection are:

- remote-endpoint: a phandle to the bus receiver's endpoint node.

- clock-lanes: should be set to <0> (clock lane on hardware lane 0)

- data-lanes: should be set to <1> or <1 2> (one or two CSI-2 lanes supported)



Endpoint node required properties for parallel connection are:

- remote-endpoint: a phandle to the bus receiver's endpoint node.

- bus-width: shall be set to <8> for 8 bits parallel bus

	     or <10> for 10 bits parallel bus

- data-shift: shall be set to <2> for 8 bits parallel bus

	      (lines 9:2 are used) or <0> for 10 bits parallel bus

- 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.

- pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock

	       signal.



Examples:



&i2c1 {

	ov5640: camera@3c {
@@ -35,6 +53,7 @@ Example: 
		reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;



		port {

			/* MIPI CSI-2 bus endpoint */

			ov5640_to_mipi_csi2: endpoint {

				remote-endpoint = <&mipi_csi2_from_ov5640>;

				clock-lanes = <0>;
@@ -43,3 +62,26 @@ Example: 
		};

	};

};



&i2c1 {

	ov5640: camera@3c {

		compatible = "ovti,ov5640";

		pinctrl-names = "default";

		pinctrl-0 = <&pinctrl_ov5640>;

		reg = <0x3c>;

		clocks = <&clk_ext_camera>;

		clock-names = "xclk";



		port {

			/* Parallel bus endpoint */

			ov5640_to_parallel: endpoint {

				remote-endpoint = <&parallel_from_ov5640>;

				bus-width = <8>;

				data-shift = <2>; /* lines 9:2 are used */

				hsync-active = <0>;

				vsync-active = <0>;

				pclk-sample = <1>;

			};

		};

	};

};