Re: [linux-pm] [PATCH] i2c: OMAP: fix static suspend vs. runtime suspend

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On Mon, 31 Jan 2011, Kevin Hilman wrote:

> I understand how this works, but frankly I'm still a bit fuzzy on why.
> 
> I guess I'm still missing a good understanding of what "interfering with a
> system power transition" means, and why a runtime suspend qualifies as
> interfering but not a runtime resume.

These are good questions.  Rafael implemented this design originally; 
my contribution was only to warn him of the potential for problems.  
Therefore he should explain the rationale for the design.

> More specifically, the reason for $SUBJECT patch is precisely because a
> runtime resume is allowed, a runtime suspend is not, and thus a system
> power transititon is prevented.

Alan Stern

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