Thread (1 message) 1 message, 1 author, 2011-06-22

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

From: Kevin Hilman <hidden>
Date: 2011-06-22 21:50:51

"Rafael J. Wysocki" [off-list ref] writes:
From: Rafael J. Wysocki <redacted>

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
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