Kernel-4.18.0-80.el8_renesas,rcar-csi2

Renesas R-Car MIPI CSI-2

The R-Car CSI-2 receiver device provides MIPI CSI-2 capabilities for the
Renesas R-Car family of devices. It is used in conjunction with the
R-Car VIN module, which provides the video capture capabilities.

Mandatory properties

• compatible: Must be one or more of the following

  • “renesas,r8a7795-csi2” for the R8A7795 device.
  • “renesas,r8a7796-csi2” for the R8A7796 device.
  • “renesas,r8a77965-csi2” for the R8A77965 device.
  • “renesas,r8a77970-csi2” for the R8A77970 device.

• reg: the register base and size for the device registers

• interrupts: the interrupt for the device

• clocks: reference to the parent clock

The device node shall contain two ‘port’ child nodes according to the
bindings defined in Documentation/devicetree/bindings/media/
video-interfaces.txt. port@0 shall connect to the CSI-2 source. port@1
shall connect to all the R-Car VIN modules that have a hardware
connection to the CSI-2 receiver.

• port@0- Video source (mandatory)

  • endpoint@0 - sub-node describing the endpoint that is the video source

• port@1 - VIN instances (optional)

  • One endpoint sub-node for every R-Car VIN instance which is connected
    to the R-Car CSI-2 receiver.

Example:

csi20: csi2@fea80000 {
    compatible = "renesas,r8a7796-csi2";
    reg = <0 0xfea80000 0 0x10000>;
    interrupts = <0 184 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&cpg CPG_MOD 714>;
    power-domains = <&sysc R8A7796_PD_ALWAYS_ON>;
    resets = <&cpg 714>;

    ports {
        #address-cells = <1>;
        #size-cells = <0>;

        port@0 {
            #address-cells = <1>;
            #size-cells = <0>;

            reg = <0>;

            csi20_in: endpoint@0 {
                reg = <0>;
                clock-lanes = <0>;
                data-lanes = <1>;
                remote-endpoint = <&adv7482_txb>;
            };
        };

        port@1 {
            #address-cells = <1>;
            #size-cells = <0>;

            reg = <1>;

            csi20vin0: endpoint@0 {
                reg = <0>;
                remote-endpoint = <&vin0csi20>;
            };
            csi20vin1: endpoint@1 {
                reg = <1>;
                remote-endpoint = <&vin1csi20>;
            };
            csi20vin2: endpoint@2 {
                reg = <2>;
                remote-endpoint = <&vin2csi20>;
            };
            csi20vin3: endpoint@3 {
                reg = <3>;
                remote-endpoint = <&vin3csi20>;
            };
            csi20vin4: endpoint@4 {
                reg = <4>;
                remote-endpoint = <&vin4csi20>;
            };
            csi20vin5: endpoint@5 {
                reg = <5>;
                remote-endpoint = <&vin5csi20>;
            };
            csi20vin6: endpoint@6 {
                reg = <6>;
                remote-endpoint = <&vin6csi20>;
            };
            csi20vin7: endpoint@7 {
                reg = <7>;
                remote-endpoint = <&vin7csi20>;
            };
        };
    };
};