Messages in this thread | | | Date | Sat, 06 Sep 2014 20:49:14 +0400 | From | Evgeny Boger <> | Subject | Re: [PATCH] Add support for always enabled watchdog timers |
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On 08/23/2014 09:33 PM, Guenter Roeck wrote: > On 08/23/2014 10:25 AM, Alexander Shiyan wrote: >> Sat, 23 Aug 2014 10:16:08 -0700 от Guenter Roeck <linux@roeck-us.net>: >>> On 08/16/2014 05:45 PM, Evgeny Boger wrote: >>>> From: Evgeny Boger <boger@contactless.ru> >>>> >>>> Add option to use with watchdog timers which are always enabled >>>> in hardware, i.e. there is no way to enable/disable it via GPIO pin. >>>> The driver will start pinging WDT immediately upon loading >>>> and will continue to do so even after stopping the watchdog. >>>> >>> The headline needs a reference to the affected driver. >>> >>> Also, please copy the dt mailing list and maintainers. >>> >>>> Signed-off-by: Evgeny Boger <boger@contactless.ru> >>>> --- >>>> .../devicetree/bindings/watchdog/gpio-wdt.txt | 14 ++++++- >>>> drivers/watchdog/gpio_wdt.c | 45 >>>> +++++++++++++++++----- >>>> 2 files changed, 48 insertions(+), 11 deletions(-) >>>> >>>> diff --git >>>> a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt >>>> b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt >>>> index 37afec1..1f8ca46 100644 >>>> --- a/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt >>>> +++ b/Documentation/devicetree/bindings/watchdog/gpio-wdt.txt >>>> @@ -12,8 +12,11 @@ Required Properties: >>>> the opposite level disables the WDT. Active level is determined >>>> by the GPIO flags. >>>> - hw_margin_ms: Maximum time to reset watchdog circuit >>>> (milliseconds). >>>> +- always-enabled: Use with wathdog timer which is always enabled >> >> Similar to NOWAYOUT? >> > I think this one is different. NOWAYOUT is a software flag, while > the flag here is supposed to mean that the hardware watchdog > is always enabled and running, and can not be disabled. Or at least > this is my understanding.
exactly
> > Guenter >
-- С уважением, Евгений Богер ООО Бесконтактные устройства http://contactless.ru +7 (919) 965 88 36
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