On Thu, Jul 14, 2005 at 02:53:27PM +0100, Russell King wrote:
> On Thu, Jul 14, 2005 at 03:53:44PM +0400, Ivan Kokshaysky wrote:
> > The setup-bus code doesn't work correctly for configurations
> > with more than one display adapter in the same PCI domain.
> > This stuff actually is a leftover of an early 2.4 PCI setup code
> > and apparently it stopped working after some "bridge_ctl" changes.
> > So the best thing we can do is just to remove it and rely on the fact
> > that any firmware *has* to configure VGA port forwarding for the boot
> > display device properly.
>
> What happens when there is no firmware?
I helped test/add bridge_ctl patch but PARISC general does NOT
support VGA at this time.
> I'm sure this code would not have been added had there not been a reason
> for it. Do we know why it was added?
It was a replacement for the previous hacks and should represent essentially
the same functionality. I suspect we just didn't care about (or test)
multiheaded gfx at the time. Certainly not on parisc. This was in 2000/2001
timeframe originally.
grant
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