Kernel-4.18.0-80.el8_ov7251

• Omnivision 1/7.5-Inch B&W VGA CMOS Digital Image Sensor

The Omnivision OV7251 is a 1/7.5-Inch CMOS active pixel digital image sensor
with an active array size of 640H x 480V. It is programmable through a serial
I2C interface.

Required Properties:

• compatible: Value should be “ovti,ov7251”.
• clocks: Reference to the xclk clock.
• clock-names: Should be “xclk”.
• clock-frequency: Frequency of the xclk clock.
• enable-gpios: Chip enable GPIO. Polarity is GPIO_ACTIVE_HIGH. This corresponds
  to the hardware pin XSHUTDOWN which is physically active low.
• vdddo-supply: Chip digital IO regulator.
• vdda-supply: Chip analog regulator.
• vddd-supply: Chip digital core regulator.

The device node shall contain one ‘port’ child node with a single ‘endpoint’
subnode for its digital output video port, in accordance with the video
interface bindings defined in
Documentation/devicetree/bindings/media/video-interfaces.txt.

Example:

&i2c1 {
    ...

    ov7251: camera-sensor@60 {
        compatible = "ovti,ov7251";
        reg = <0x60>;

        enable-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
        pinctrl-names = "default";
        pinctrl-0 = <&camera_bw_default>;

        clocks = <&clks 200>;
        clock-names = "xclk";
        clock-frequency = <24000000>;

        vdddo-supply = <&camera_dovdd_1v8>;
        vdda-supply = <&camera_avdd_2v8>;
        vddd-supply = <&camera_dvdd_1v2>;

        port {
            ov7251_ep: endpoint {
                clock-lanes = <1>;
                data-lanes = <0>;
                remote-endpoint = <&csi0_ep>;
            };
        };
    };
};