[PATCH] at91sam9_wdt: Allow watchdog to reset device at early boot

Alexandre Belloni alexandre.belloni at free-electrons.com
Thu Nov 27 16:30:02 PST 2014

On 27/11/2014 at 11:31:36 -0800, Guenter Roeck wrote :
> On 11/27/2014 11:06 AM, Boris Brezillon wrote:
> >>As for DT not supposed to be used for configuration, that is really a
> >>tricky problem which is hard to solve. I seem to recall, though, that
> >>it may be now acceptable under certain conditions. A module parameter
> >>might be easier.
> >
> >I'm not a big fan of passing these kind information through module
> >params, cause it's kind of hard to assign parameters when you have
> >multiple device instances (it might not be applicable to watchdog
> >devices though).
> >Moreover, adding more module parameters will just expand the cmdline
> >and make it less and less readable.
> >
> Agreed but ...
> >Anyway, this is not my call to make :-).
> it isn't us who restrict the DT scope (though of course timeout-sec
> _is_ configuration, but that was before things got more restrictive).

My understanding is that it is OK if this is something you need at boot
time versus something you can configure from userspace later. But I'm
not a DT expert ;)

Alexandre Belloni, Free Electrons
Embedded Linux, Kernel and Android engineering

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