Re: pchb@acpi again

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

On Sat, Apr 13, 2013 at 06:26:19PM -0700, Chuck Silvers wrote:
> anyway, there are more problems with the new pchb,
> it's unhappy with the other two PCI root bridges in this system:
> 
> pchb7 at acpi0 (PCI1, PNP0A03-8): ACPI Host-PCI Bridge
> pchb7: Can't get _PRT
> pchb8 at acpi0 (PCI2, PNP0A03-9): ACPI Host-PCI Bridge
> pchb8: Can't get _PRT
> 
> these really don't have a _PRT method, but the rest of the code doesn't mind.
> they still attach fine with the mainbus attachment:
> 
> I guess that's because even though these root bridges themselves don't have
> _PRT methods, the PCI bridges directly under them do have them.
> so we'll need to accomodate that somehow.

Why not just probe _PRT in the match()? According to the spec, _PRT should
be mandatory for all PCI root bridges.

- Jukka.