linux/Documentation/devicetree/bindings/rtc/lpc32xx-rtc.txt
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   1* NXP LPC32xx SoC Real Time Clock controller
   2
   3Required properties:
   4- compatible: must be "nxp,lpc3220-rtc"
   5- reg: physical base address of the controller and length of memory mapped
   6  region.
   7- interrupts: The RTC interrupt
   8
   9Example:
  10
  11        rtc@40024000 {
  12                compatible = "nxp,lpc3220-rtc";
  13                reg = <0x40024000 0x1000>;
  14                interrupts = <52 0>;
  15        };
  16