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Date: Wed, 25 Oct 2017 12:04:21 -0700 From: Andrey Smirnov <andrew.smirnov@...il.com> To: linux-kernel@...r.kernel.org Cc: Andrey Smirnov <andrew.smirnov@...il.com>, devicetree@...r.kernel.org, linux-watchdog@...r.kernel.org, cphealy@...il.com, Lucas Stach <l.stach@...gutronix.de>, Nikita Yushchenko <nikita.yoush@...entembedded.com>, Lee Jones <lee.jones@...aro.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Pavel Machek <pavel@....cz>, Andy Shevchenko <andy.shevchenko@...il.com>, Guenter Roeck <linux@...ck-us.net>, Rob Herring <robh@...nel.org>, Johan Hovold <johan@...nel.org>, Mark Rutland <mark.rutland@....com> Subject: [PATCH v9 5/5] dt-bindings: watchdog: Add bindings for RAVE SP watchdog driver 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: linux-kernel@...r.kernel.org Cc: devicetree@...r.kernel.org Cc: linux-watchdog@...r.kernel.org Cc: cphealy@...il.com Cc: Lucas Stach <l.stach@...gutronix.de> Cc: Nikita Yushchenko <nikita.yoush@...entembedded.com> Cc: Lee Jones <lee.jones@...aro.org> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Pavel Machek <pavel@....cz> Cc: Andy Shevchenko <andy.shevchenko@...il.com> Cc: Guenter Roeck <linux@...ck-us.net> Cc: Rob Herring <robh@...nel.org> Cc: Johan Hovold <johan@...nel.org> Cc: Mark Rutland <mark.rutland@....com> Signed-off-by: Nikita Yushchenko <nikita.yoush@...entembedded.com> Signed-off-by: Andrey Smirnov <andrew.smirnov@...il.com> --- .../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"; + }; + } + -- 2.13.5
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