[parisc-linux] [RFC] Patch to handle parisc-device quirks/bugs.

[Ryan Bradetich]

On Sun, 2002-11-17 at 13:00, Matthew Wilcox wrote:
> On Sun, Nov 17, 2002 at 12:05:09PM -0700, Ryan Bradetich wrote:
> > The following patch fixes this problem by adding a HP hardare
> > quirks table, and fixing up the device early on in the discovery
> > process so everything else just works.
> 
> We have some other occurrences of this kind of problem:
> 
> Graphics cards are frequently wrong.
> HSC-PCI cards show up with the wrong sversion in 715/Mirage machines.
> One of the Dinos in the J2240 has the wrong sversion.

These could easily be added to the quirks list also :)

> We ignore the problem for gfx cards since we don't use the IDs anyway.
> The Dino problems are solved by additional IDs in the Dino driver.

ditto.

> It is legitimate for a driver to refuse to claim a device that it's
> advertised for.  So my personl preference is to advertise for all BC
> ports, and then refuse to claim the ones which are actually lower ports.
> That confines the knowledge to one driver.


So for this case, you would rather see the U2 GSC+ port added to the
hppb.c driver, and simply not-claim any driver that does not reside on
the central bus?  This would work because ccio only claims devices for
the U2 runway side, not the GSC side.

> This scheme doesn't fix the device name printout, but that seems less
> important.

The quirks fixes the print-outs, plus all these problems are fixed in
one place, drivers do not even to know there was a problem.

Either way works for me really, just pointing out the reason I built it
as a quirk table to begin with.

Thanks,

-Ryan

> -- 
> Revolutions do not require corporate support.
>