linux/Documentation/devicetree/bindings/timer/allwinner,sun4i-timer.txt
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   1Allwinner A1X SoCs Timer Controller
   2
   3Required properties:
   4
   5- compatible : should be "allwinner,sun4i-timer"
   6- reg : Specifies base physical address and size of the registers.
   7- interrupts : The interrupt of the first timer
   8- clocks: phandle to the source clock (usually a 24 MHz fixed clock)
   9
  10Example:
  11
  12timer {
  13        compatible = "allwinner,sun4i-timer";
  14        reg = <0x01c20c00 0x400>;
  15        interrupts = <22>;
  16        clocks = <&osc>;
  17};
  18