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     1 Zodiac Inflight Innovations RAVE Supervisory Processor Watchdog Bindings
    2 
    3 RAVE SP watchdog device is a "MFD cell" device corresponding to
    4 watchdog functionality of RAVE Supervisory Processor. It is expected
    5 that its Device Tree node is specified as a child of the node
    6 corresponding to the parent RAVE SP device (as documented in
    7 Documentation/devicetree/bindings/mfd/zii,rave-sp.txt)
    8 
    9 Required properties:
   10 
   11 - compatible: Depending on wire protocol implemented by RAVE SP
   12   firmware, should be one of:
   13         - "zii,rave-sp-watchdog"
   14         - "zii,rave-sp-watchdog-legacy"
   15 
   16 Optional properties:
   17 
   18 - wdt-timeout:  Two byte nvmem cell specified as per
   19                 Documentation/devicetree/bindings/nvmem/nvmem.txt
   20 
   21 Example:
   22 
   23         rave-sp {
   24                 compatible = "zii,rave-sp-rdu1";
   25                 current-speed = <38400>;
   26 
   27                 eeprom {
   28                         wdt_timeout: wdt-timeout@8E {
   29                                 reg = <0x8E 2>;
   30                         };
   31                 };
   32 
   33                 watchdog {
   34                         compatible = "zii,rave-sp-watchdog";
   35                         nvmem-cells = <&wdt_timeout>;
   36                         nvmem-cell-names = "wdt-timeout";
   37                 };
   38         }
   39 
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