Re: calling runtime PM from system PM methods

On Fri, 10 Jun 2011, Mark Brown wrote:

quoted

No, 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.  This also is explained in the Documentation 
files.

What is the reasoning behind this agreement?  It's not immediately
obvious why this is useful.

See section 6 of Documentation/power/runtime_pm.txt.

Alan Stern