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@@ -0,0 +1,46 @@
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+* OmniVision OV490 CSI2 Image Signal Processor (ISP)
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+
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+The Omnivision OV490 is a Image Signal Processor which is a companion
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+processor for the Raw image sensors. This device can process the raw images
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+and apply multiple algorithms to correct/transform/enhance the image quality.
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+
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+It needs programming lot of registers are most of them are written from
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+a flash memory. The output is a CSI2 MIPI interface which can work with
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+configurable number of lanes.
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+
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+Required Properties:
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+- compatible : "ovti,ov490"
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+
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+Optional Properties:
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+- mux-gpios : A list of gpios with active high/low flags for enabling the sensor.
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+ This may contain gpios for power, board muxes, etc. Driver would
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+ set all of them as specified by the active high/low flag.
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+
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+ There are no custom optional properties supported for this device.
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+ Although all the CSI2 endpoint properties documented in
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+ Documentation/devicetree/bindings/media/video-interfaces.txt are supported.
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+
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+Example:
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+
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+ &i2c2 {
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+ ...
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+ ...
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+ ov490@cam0 {
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+ compatible = "ovti,ov490";
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+ reg = <0x24>;
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+
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+ mux-gpios = <&gpio_csi2_adap 0 GPIO_ACTIVE_LOW>,
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+ <&gpio_csi2_adap 1 GPIO_ACTIVE_HIGH>,
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+ <&gpio_csi2_adap 3 GPIO_ACTIVE_HIGH>,
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+ <&gpio_csi2_adap 4 GPIO_ACTIVE_LOW>;
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+
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+ port {
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+ csi2_cam0: endpoint@0 {
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+ clock-lanes = <0>;
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+ data-lanes = <1 2 3 4>;
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+ remote-endpoint = <&csi2_phy0>;
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+ };
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+ };
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+ };
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+ ...
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+ };
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Benoit Parrot