* Texas Instruments Dual, 12-Bit Serial Input Digital-to-Analog Converter

The DAC7612 is a dual, 12-bit digital-to-analog converter (DAC) with guaranteed
12-bit monotonicity performance over the industrial temperature range.
Is is programmable through an SPI interface.

The internal DACs are loaded when the LOADDACS pin is pulled down.

http://www.ti.com/lit/ds/sbas106/sbas106.pdf

Required Properties:
- compatible: Should be one of:
		"ti,dac7612"
		"ti,dac7612u"
		"ti,dac7612ub"
- reg: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt

Optional Properties:
- ti,loaddacs-gpios: GPIO descriptor for the LOADDACS pin.
- spi-*: Definition as per Documentation/devicetree/bindings/spi/spi-bus.txt

Example:

	dac@1 {
		compatible = "ti,dac7612";
		reg = <0x1>;
		ti,loaddacs-gpios = <&msmgpio 25 GPIO_ACTIVE_LOW>;
	};