linux/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt
<<
>>
Prefs
   1Allwinner Sunxi Interrupt Controller
   2
   3Required properties:
   4
   5- compatible : should be "allwinner,sun4i-ic"
   6- reg : Specifies base physical address and size of the registers.
   7- interrupt-controller : Identifies the node as an interrupt controller
   8- #interrupt-cells : Specifies the number of cells needed to encode an
   9  interrupt source. The value shall be 1.
  10
  11For the valid interrupt sources for your SoC, see the documentation in
  12sunxi/<soc>.txt
  13
  14Example:
  15
  16intc: interrupt-controller {
  17        compatible = "allwinner,sun4i-ic";
  18        reg = <0x01c20400 0x400>;
  19        interrupt-controller;
  20        #interrupt-cells = <2>;
  21};
  22