Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt

   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