sa1100fb: fix color component length for pseudocolor modes

sa1100fb incorrectly sets the length of the color fields to 8 bits for
PSEUDOCOLOR modes for which only 4 bits are used per pixel.  Fix this by
setting the length to 4 bits for these modes.

Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 3 deletions

diff --git a/drivers/video/sa1100fb.h b/drivers/video/sa1100fb.h
index 86831db9a042..1c3b459865d8 100644
--- a/drivers/video/sa1100fb.h
+++ b/drivers/video/sa1100fb.h
@@ -57,9 +57,10 @@ struct sa1100fb_lcd_reg {
         unsigned long lccr3;
 };
 
-#define RGB_8   (0)
-#define RGB_16  (1)
-#define NR_RGB  2
+#define RGB_4   (0)
+#define RGB_8   (1)
+#define RGB_16  (2)
+#define NR_RGB  3
 
 struct sa1100fb_info {
         struct fb_info          fb;