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ST-Ericsson U300 apptimer

Required properties:

- compatible : should be "stericsson,u300-apptimer"
- reg : Specifies base physical address and size of the registers.
- interrupts : A list of 4 interrupts; one for each subtimer. These
  are, in order: OS (operating system), DD (device driver) both
  adopted for EPOC/Symbian with two specific IRQs for these tasks,
  then GP1 and GP2, which are general-purpose timers.

Example:

timer {
	compatible = "stericsson,u300-apptimer";
	reg = <0xc0014000 0x1000>;
	interrupts = <24 25 26 27>;
};
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