tree 47b18cb770849ee173e9d6c306e42581917a8425
parent 5cf138457af20b0ef79d8c249381927718ca1417
author Krzysztof Helt <krzysztof.h1@wp.pl> 1216873866 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1216921656 -0700

tridentfb: fix console freeze when switching from X11

This patch fixes two problems when acceleration is enabled:

 - console switch from the Xorg locks up the computer
   because the Xorg code locks some registers and disables
   the mmio mode, so reenable these in the
   tridentfb_set_par() and enable_mmio()

 - blacklist the Image975 chipset from setting PCI burst
   mode. This helps with random lock ups of the
   framebuffer on this chip. The same fix is probably
   needed for the Xorg as well.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>