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

[Török Edvin]

On 6/11/07, Kristen Carlson Accardi <kristen.c.accardi at intel.com> wrote:
> > >
> > > I thought ICH7M did support ahci...  but maybe I'm very wrong there...
> > >
> >
> > It does - regular ICH7 does not, but ICH7M does.
> >
> >
>
> Oops - I mean regular ICH7 does not support ALPM... it does support AHCI.

I tried to force AHCI, by adding my PCI id (8086:27c4) to the ahci.c
pci_id list.
However:
ahci 0000:00:1f.2: version 2.2
ahci: probe of 0000:00:1f.2 failed with error -22

Is there anything else I can try to enable AHCI? (if it is after all
supported...)

Although I have in my BIOS (as of a new BIOS update) a new option:
SATA DIPM option.
Is it possible to support SATA DIPM without AHCI?

Thanks,
--Edwin