Re: [RFC/RFT][PATCH -mm 1/4] PM: Introduce set_target method in pm_ops

[Pavel Machek <pavel@ucw.cz>]

On Mon 2007-06-25 23:28:06, Johannes Berg wrote:
> On Sun, 2007-06-24 at 22:40 +0200, Rafael J. Wysocki wrote:
> 
> > + * @set_target: Tell the platform which system sleep state is going to be
> > + *	entered.  The information passed to @set_target should be disregarded
> > + *	by the platform as soon as @finish() is executed and if	@prepare()
> > + *	fails.
> > + *	This callback is optional.  However, if it is implemented, the
> > + *	argument passed to @prepare(), @enter and @finish() must be ignored.
> 
> I don't understand the point in mandating that then the argument to
> enter() is to be ignored, why bother? It doesn't look as though we can
> possibly do anything with the semantics here that would mean the state
> set by set_target is different to the state passed to enter(), can we?

That's what 4/4 does, AFAICT.



-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html