FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/mfd/bfticu.txt

     KEYMILE bfticu Chassis Management FPGA
     
     The bfticu is a multifunction device that manages the whole chassis.
     Its main functionality is to collect IRQs from the whole chassis and signals
     them to a single controller.
     
     Required properties:
     - compatible: "keymile,bfticu"
     - interrupt-controller: the bfticu FPGA is an interrupt controller
    - interrupts: the main IRQ line to signal the collected IRQs
    - #interrupt-cells : is 2 and their usage is compliant to the 2 cells variant
      of Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
    - reg: access on the parent local bus (chip select, offset in chip select, size)
    
    Example:
    
            chassis-mgmt@3,0 {
                    compatible = "keymile,bfticu";
                    interrupt-controller;
                    #interrupt-cells = <2>;
                    reg = <3 0 0x100>;
                    interrupt-parent = <&mpic>;
                    interrupts = <6 1 0 0>;
            };

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