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+* AT91's Analog to Digital Converter (ADC)
+
+Required properties:
+ - compatible: Should be "atmel,at91sam9260-adc"
+ - reg: Should contain ADC registers location and length
+ - interrupts: Should contain the IRQ line for the ADC
+ - atmel,adc-channel-base: Offset of the first channel data register
+ - atmel,adc-channels-used: Bitmask of the channels muxed and enable for this
+ device
+ - atmel,adc-drdy-mask: Mask of the DRDY interruption in the ADC
+ - atmel,adc-num-channels: Number of channels available in the ADC
+ - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
+ defined in the datasheet
+ - atmel,adc-status-register: Offset of the Interrupt Status Register
+ - atmel,adc-trigger-register: Offset of the Trigger Register
+ - atmel,adc-vref: Reference voltage in millivolts for the conversions
+
+Optional properties:
+ - atmel,adc-use-external: Boolean to enable of external triggers
+
+Optional trigger Nodes:
+ - Required properties:
+ * trigger-name: Name of the trigger exposed to the user
+ * trigger-value: Value to put in the Trigger register
+ to activate this trigger
+ - Optional properties:
+ * trigger-external: Is the trigger an external trigger?
+
+Examples:
+adc0: adc@fffb0000 {
+ compatible = "atmel,at91sam9260-adc";
+ reg = <0xfffb0000 0x100>;
+ interrupts = <20 4>;
+ atmel,adc-channel-base = <0x30>;
+ atmel,adc-channels-used = <0xff>;
+ atmel,adc-drdy-mask = <0x10000>;
+ atmel,adc-num-channels = <8>;
+ atmel,adc-startup-time = <40>;
+ atmel,adc-status-register = <0x1c>;
+ atmel,adc-trigger-register = <0x08>;
+ atmel,adc-use-external;
+ atmel,adc-vref = <3300>;
+
+ trigger@0 {
+ trigger-name = "external-rising";
+ trigger-value = <0x1>;
+ trigger-external;
+ };
+ trigger@1 {
+ trigger-name = "external-falling";
+ trigger-value = <0x2>;
+ trigger-external;
+ };
+
+ trigger@2 {
+ trigger-name = "external-any";
+ trigger-value = <0x3>;
+ trigger-external;
+ };
+
+ trigger@3 {
+ trigger-name = "continuous";
+ trigger-value = <0x6>;
+ };
+};