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