1* NXP LPC32xx SoC ADC controller
2
3Required properties:
4- compatible: must be "nxp,lpc3220-adc"
5- reg: physical base address of the controller and length of memory mapped
6  region.
7- interrupts: The ADC interrupt
8
9Optional:
10 - vref-supply: The regulator supply ADC reference voltage, optional
11   for legacy reason, but highly encouraging to us in new device tree
12
13Example:
14
15	adc@40048000 {
16		compatible = "nxp,lpc3220-adc";
17		reg = <0x40048000 0x1000>;
18		interrupt-parent = <&mic>;
19		interrupts = <39 0>;
20		vref-supply = <&vcc>;
21	};
22