Re: How to kick a secondary watchdog? (Re: [PATCH 1/3] watchdog:sync linux-omap changes)

[Alan Cox]

> Some omap devices like Nokia 770, N800 and N810 have also a secondary
> watchdog on the retu chip connected via cbus. This watchdog needs
> to be kicked as it cannot be disabled.

If you have a chip that runs continually then the easiest approach I've
seen is to have kernel code that manages it and the watchdog driver just
keeps a time value indicating whether it should be refreshed.

We've got a few watchdogs like that in the watchdog tree.

If it can be user started but then not stopped that is fine - the API
doesn't require you can stop it
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