Re: [PATCH] Add support for always enabled watchdog timers

[Alexander Shiyan]

Sat, 23 Aug 2014 10:16:08 -0700 ÐÑ Guenter Roeck <linux@xxxxxxxxxxxx>:
> On 08/16/2014 05:45 PM, Evgeny Boger wrote:
> > From: Evgeny Boger <boger@xxxxxxxxxxxxxx>
> >
> > 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@xxxxxxxxxxxxxx>
> > ---
> >   .../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
 
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