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* TWL4030 Monitoring Analog to Digital Converter (MADC)

The MADC subsystem in the TWL4030 consists of a 10-bit ADC
combined with a 16-input analog multiplexer.

Required properties:
  - compatible: Should contain "ti,twl4030-madc".
  - interrupts: IRQ line for the MADC submodule.
  - #io-channel-cells: Should be set to <1>.

Optional properties:
  - ti,system-uses-second-madc-irq: boolean, set if the second madc irq register
				    should be used, which is intended to be used
				    by Co-Processors (e.g. a modem).

Example:

&twl {
	madc {
		compatible = "ti,twl4030-madc";
		interrupts = <3>;
		#io-channel-cells = <1>;
	};
};