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SubjectRe: [PATCH] ata: ahci: power off unused ports
Hi!

> > > As far as I know the patch has gone nowhere. I believe that
> > > Jeff wanted something more flexible than the module parameter that
> > > I provided to override the BIOS options. I am not working on this,
> > > I figured he had a pretty firm idea what he wanted so he was better
> > > equipped to write the patch.
> >
> > Thanks Kristen,
> >
> > Can you say which laptops you had tested this on where it saved power?
> > (Did you test any Thinkpads, in particular?) I'm wondering if it's
> > worth trying to forward port your patch as a private mod to my kernel;
> > 30 to 40 minutes of extra battery life is nothing to sneeze at!
> >
> > - Ted
> >
>
> I tested this on an Intel mobile software development platform
> with a newer mobile ICH - the power savings were measured at the actual
> component (via probes on the ICH), so I did not measure the power
> savings at the wall socket, although I would expect the power savings
> to be even greater on the other side of the power supply. So in short,
> yes, I think it's worth it to give it a try - the patch is pretty
> unintrusive, so it should be that difficult a port to do.

Can you repost the patch? I believe we should push it and only add
complex enable/disable functionality if someone needs it...

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


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