commit 4242a23c9e6b8e2462bb49bf78b76bfdf32158b5
author Krzysztof Helt <krzysztof.h1@wp.pl> Tue Mar 31 15:25:17 2009 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> Wed Apr 01 08:59:29 2009 -0700
tree 9339a9380bc5ae2f4eb0cf63444ffb02946a89c4
parent df3aafd57d590d6f3d95310fc3430f3a536d1e59

cirrusfb: fix threshold register mask for Laguna chips

Fix threshold register mask for Laguna chips otherwise some 8bpp modes are
garbled after selecting a 24bpp mode.

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>

drivers/video/cirrusfb.c

diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index a364e1b..9bb811d 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -875,7 +875,7 @@
 		threshold = fb_readw(cinfo->laguna_mmio + 0xea);
 		control &= ~0x6800;
 		format = 0;
-		threshold &= 0xffe0 & 0x3fbf;
+		threshold &= 0xffc0 & 0x3fbf;
 	}
 	if (nom) {
 		tmp = den << 1;