[PATCH] nvidiafb: PPC & mode setting fixes (#2)

[Antonino A. Daplas]

Benjamin Herrenschmidt wrote:
> (This version removes a useless bit that slipped in the previous one)
> 
> This patch fixes a couple of things in nvidiafb:
> 
>  - The code for retreiving the mode from Open Firmware was broken. It
> would crash at boot and was copied from the old rivafb code that didn't
> work very well (I'll update rivafb too one of these days).

What do you think of making EDID retrieval from the OF generic?  Or is
it too much hassle?

> 
>  - The mode setting code produced weird results on the 5200 card in the
> iMac G5 here. X "nv" code works fine though. After comparing them, I
> found out that we aren't really manipulating some VGA bits the same way
> and X code seemed better, so I slightly changed the mode setting to do
> the same and that fixed the problem. (The display was strangely shifted
> with garbage in the margin but not on all lines, and not in bpp 32)
> 
> Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>

Thanks for the fix :-)  

Acked-by: Antonino Daplas <adaplas at pol.net>