Messages in this thread | | | Date | Fri, 1 Jul 2011 10:45:02 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH 7/10 v6] PM / Domains: Don't stop wakeup devices during system sleep transitions |
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On Fri, 1 Jul 2011, Rafael J. Wysocki wrote:
> So the only way forward I can see is to add a special PM domain callback, > say .active_wakeup(), that will return "true" if the device is to be left > active if wakeup-enabled. So the check you don't like will become > something like: > > if (device_may_wakeup(dev) && genpd->active_wakeup > && genpd->active_wakeup(dev)) > return 0; > > Would that be better?
Another option, less flexible but perhaps easier to use, would be to set a couple of bitflags indicating whether the device needs power or clocks to handle wakeup signals.
Alan Stern
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