1mcp3021 properties
2
3Required properties:
4- compatible: Must be one of the following:
5	- "microchip,mcp3021" for mcp3021
6	- "microchip,mcp3221" for mcp3221
7- reg: I2C address
8
9Optional properties:
10
11- reference-voltage-microvolt
12	Reference voltage in microvolt (uV)
13
14Example:
15
16mcp3021@4d {
17	compatible = "microchip,mcp3021";
18	reg = <0x4d>;
19
20	reference-voltage-microvolt = <4500000>; /* 4.5 V */
21};
22