Add Device Tree bindings for RAVE SP watchdog drvier - an MFD cell of parent RAVE SP driver (documented in Documentation/devicetree/bindings/mfd/zii,rave-sp.txt).
Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Lucas Stach <[email protected]> Cc: Nikita Yushchenko <[email protected]> Cc: Lee Jones <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Pavel Machek <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: Guenter Roeck <[email protected]> Cc: Rob Herring <[email protected]> Cc: Johan Hovold <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Sebastian Reichel <[email protected]> Acked-by: Rob Herring <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Nikita Yushchenko <[email protected]> Signed-off-by: Andrey Smirnov <[email protected]> --- .../bindings/watchdog/zii,rave-sp-wdt.txt | 39 ++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt diff --git a/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt new file mode 100644 index 000000000000..ab16659e781d --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/zii,rave-sp-wdt.txt @@ -0,0 +1,39 @@ +Zodiac Inflight Innovations RAVE Supervisory Processor Watchdog Bindings + +RAVE SP watchdog device is a "MFD cell" device corresponding to +watchdog functionality of RAVE Supervisory Processor. It is expected +that its Device Tree node is specified as a child of the node +corresponding to the parent RAVE SP device (as documented in +Documentation/devicetree/bindings/mfd/zii,rave-sp.txt) + +Required properties: +- compatible: Should be "zii,rave-sp-watchdog" + +Optional properties: + +- wdt-timeout: Two byte nvmem cell specified as per + Documentation/devicetree/bindings/nvmem/nvmem.txt + +Example: + + rave-sp { + compatible = "zii,rave-sp-rdu1"; + current-speed = <38400>; + + eeprom { + compatible = "zii,pic-main-eeprom"; + #address-cells = <1>; + #size-cells = <1>; + + wdt_timeout: wdt-timeout@8E { + reg = <0x8E 2>; + }; + }; + + watchdog { + compatible = "zii,rave-sp-watchdog"; + nvmem-cells = <&wdt_timeout>; + nvmem-cell-names = "wdt-timeout"; + }; + } + -- 2.14.3
