1Freescale i.MX25 ADC GCQ device
2
3This is a generic conversion queue device that can convert any of the
4analog inputs using the ADC unit of the i.MX25.
5
6Required properties:
7 - compatible: Should be "fsl,imx25-gcq".
8 - reg: Should be the register range of the module.
9 - interrupts: Should be the interrupt number of the module.
10   Typically this is <1>.
11 - #address-cells: Should be <1> (setting for the subnodes)
12 - #size-cells: Should be <0> (setting for the subnodes)
13
14Optional properties:
15 - vref-ext-supply: The regulator supplying the ADC reference voltage.
16   Required when at least one subnode uses the this reference.
17 - vref-xp-supply: The regulator supplying the ADC reference voltage on pin XP.
18   Required when at least one subnode uses this reference.
19 - vref-yp-supply: The regulator supplying the ADC reference voltage on pin YP.
20   Required when at least one subnode uses this reference.
21
22Sub-nodes:
23Optionally you can define subnodes which define the reference voltage
24for the analog inputs.
25
26Required properties for subnodes:
27 - reg: Should be the number of the analog input.
28     0: xp
29     1: yp
30     2: xn
31     3: yn
32     4: wiper
33     5: inaux0
34     6: inaux1
35     7: inaux2
36Optional properties for subnodes:
37 - fsl,adc-refp: specifies the positive reference input as defined in
38     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
39 - fsl,adc-refn: specifies the negative reference input as defined in
40     <dt-bindings/iio/adc/fsl-imx25-gcq.h>
41
42Example:
43
44	adc: adc@50030800 {
45		compatible = "fsl,imx25-gcq";
46		reg = <0x50030800 0x60>;
47		interrupt-parent = <&tscadc>;
48		interrupts = <1>;
49		#address-cells = <1>;
50		#size-cells = <0>;
51
52		inaux@5 {
53			reg = <5>;
54			fsl,adc-refp = <MX25_ADC_REFP_INT>;
55			fsl,adc-refn = <MX25_ADC_REFN_NGND>;
56		};
57	};
58