1* Maxim DS3231 Real Time Clock
2
3Required properties:
4- compatible: Should contain "maxim,ds3231".
5- reg: I2C address for chip.
6
7Optional property:
8- #clock-cells: Should be 1.
9- clock-output-names:
10  overwrite the default clock names "ds3231_clk_sqw" and "ds3231_clk_32khz".
11
12Each clock is assigned an identifier and client nodes can use this identifier
13to specify the clock which they consume. Following indices are allowed:
14    - 0: square-wave output on the SQW pin
15    - 1: square-wave output on the 32kHz pin
16
17- interrupts: rtc alarm/event interrupt. When this property is selected,
18  clock on the SQW pin cannot be used.
19
20Example:
21
22ds3231: ds3231@51 {
23	compatible = "maxim,ds3231";
24	reg = <0x68>;
25	#clock-cells = <1>;
26};
27
28device1 {
29...
30	clocks = <&ds3231 0>;
31...
32};
33
34device2 {
35...
36	clocks = <&ds3231 1>;
37...
38};
39