rtc-m41t80.txt

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    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         };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/rtc/rtc-m41t80.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/rtc/rtc-m41t80.txt