Kernel-4.18.0-80.el8_cdns,csi2tx

Cadence MIPI-CSI2 TX controller

The Cadence MIPI-CSI2 TX controller is a CSI-2 bridge supporting up to
4 CSI lanes in output, and up to 4 different pixel streams in input.

Required properties:

• compatible: must be set to “cdns,csi2tx”
• reg: base address and size of the memory mapped region
• clocks: phandles to the clocks driving the controller
• clock-names: must contain:
  • esc_clk: escape mode clock
  • p_clk: register bank clock
  • pixel_if[0-3]_clk: pixel stream output clock, one for each stream

                   implemented in hardware, between 0 and 3
    

Optional properties

• phys: phandle to the D-PHY. If it is set, phy-names need to be set
• phy-names: must contain “dphy”

Required subnodes:

• ports: A ports node with one port child node per device input and output

     port, in accordance with the video interface bindings defined in
     Documentation/devicetree/bindings/media/video-interfaces.txt. The
     port nodes are numbered as follows.
  
     Port Description
     -----------------------------
     0    CSI-2 output
     1    Stream 0 input
     2    Stream 1 input
     3    Stream 2 input
     4    Stream 3 input
  
     The stream input port nodes are optional if they are not
     connected to anything at the hardware level or implemented
     in the design. Since there is only one endpoint per port,
     the endpoints are not numbered.
  

Example:

csi2tx: csi-bridge@0d0e1000 {
compatible = “cdns,csi2tx”;
reg = <0x0d0e1000 0x1000>;
clocks = <&byteclock>, <&byteclock>,
<&coreclock>, <&coreclock>,
<&coreclock>, <&coreclock>;
clock-names = “p_clk”, “esc_clk”,
“pixel_if0_clk”, “pixel_if1_clk”,
“pixel_if2_clk”, “pixel_if3_clk”;

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

    port@0 {
        reg = <0>;

        csi2tx_out: endpoint {
            remote-endpoint = <&remote_in>;
            clock-lanes = <0>;
            data-lanes = <1 2>;
        };
    };

    port@1 {
        reg = <1>;

        csi2tx_in_stream0: endpoint {
            remote-endpoint = <&stream0_out>;
        };
    };

    port@2 {
        reg = <2>;

        csi2tx_in_stream1: endpoint {
            remote-endpoint = <&stream1_out>;
        };
    };

    port@3 {
        reg = <3>;

        csi2tx_in_stream2: endpoint {
            remote-endpoint = <&stream2_out>;
        };
    };

    port@4 {
        reg = <4>;

        csi2tx_in_stream3: endpoint {
            remote-endpoint = <&stream3_out>;
        };
    };
};

};