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* ST SPEAr ADC device driver
Required properties:
- compatible: Should be "st,spear600-adc"
- reg: Address and length of the register set for the device
- interrupts: Should contain the ADC interrupt
- sampling-frequency: Default sampling frequency
Optional properties:
- vref-external: External voltage reference in milli-volts. If omitted
the internal voltage reference will be used.
- average-samples: Number of samples to generate an average value. If
omitted, single data conversion will be used.
Examples:
adc: adc@d8200000 {
compatible = "st,spear600-adc";
reg = <0xd8200000 0x1000>;
interrupt-parent = <&vic1>;
interrupts = <6>;
sampling-frequency = <5000000>;
vref-external = <2500>; /* 2.5V VRef */
};
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