Re: [Update][PATCH 7/8] PM / Domains: System-wide transitions support for generic domains (v3)

Kevin Hilman
2011-06-22T21:50:51Z

"Rafael J. Wysocki" <rjw@sisk.pl> writes:

> From: Rafael J. Wysocki <rjw@sisk.pl>
>
> Make generic PM domains support system-wide power transitions
> (system suspend and hibernation). Add suspend, resume, freeze, thaw,
> poweroff and restore callbacks to be associated with struct
> generic_pm_domain objects and make pm_genpd_init() use them as
> appropriate.
>
> The new callbacks do nothing for devices belonging to power domains
> that were powered down at run time (before the transition).

Great, this is the approach I prefer too, but...

Now I'm confused. Leaving runtime suspended devices alone is what I was
doing in my subsystem but was told not to. According to

http://www.mail-archive.com/linux-omap@vger.kernel.org/msg50690.html

"it's generally agreed that _all_ devices should return to full
power during system resume -- even if they were runtime suspended
before the system sleep."

Kevin