Documentation/devicetree/bindings/rtc/rtc-m41t80.txt

   1 ST M41T80 family of RTC and compatible
   2
   3 Required properties:
   4 - compatible: should be one of:
   5         "st,m41t62",
   6         "st,m41t65",
   7         "st,m41t80",
   8         "st,m41t81",
   9         "st,m41t81s",
  10         "st,m41t82",
  11         "st,m41t83",
  12         "st,m41t84",
  13         "st,m41t85",
  14         "st,m41t87",
  15         "microcrystal,rv4162",
  16 - reg: I2C bus address of the device
  17
  18 Optional properties:
  19 - interrupts: rtc alarm interrupt.
  20 - clock-output-names: From common clock binding to override the default output
  21                       clock name
  22 - wakeup-source: Enables wake up of host system on alarm
  23
  24 Optional child node:
  25 - clock: Provide this if the square wave pin is used as boot-enabled fixed clock.
  26
  27 Example:
  28         rtc@68 {
  29                 compatible = "st,m41t80";
  30                 reg = <0x68>;
  31                 interrupt-parent = <&UIC0>;
  32                 interrupts = <0x9 0x8>;
  33
  34                 clock {
  35                         compatible = "fixed-clock";
  36                         #clock-cells = <0>;
  37                         clock-frequency = <32768>;
  38                 };
  39         };