[PATCH] AHCI powersaving and port-stopping (2.6.22-rc4)

[Kristen Carlson Accardi]

On Mon, 11 Jun 2007 13:13:19 -0700
Arjan van de Ven <arjan at linux.intel.com> wrote:

> Török Edvin wrote:
> > On 6/11/07, Kristen Carlson Accardi <kristen.c.accardi at intel.com> wrote:
> >> > -
> >>
> >> I've updated the hardware based patches and posted to the mailing list -
> >> they do indeed save anywhere from .6-1.5 watts depending on the system,
> >> on my X60 they save about a watt.  I don't think that a hardware based
> >> solution is irrelevant at all - it will usually be able to make faster
> >> and more accurrate decisions about when to place the link into lower
> >> power state than software could.
> >>
> > 
> > Is there any chance non-AHCI chipsets will be supported too in the
> > future? Like an Intel ICH7-M...
> 
> I thought ICH7M did support ahci...  but maybe I'm very wrong there...
> 

It does - regular ICH7 does not, but ICH7M does.