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viafb: fix LCD hardware cursor regression

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Although I'd consider this a hardware bug, as there is hardware out that
for whatever reason does not support hardware cursors on LCD output we
have to care about it in the driver.  This fixes a regression (invisible
cursor) introduced by:

    viafb: cleanup viafb_cursor

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Reported-by: Julian Wollrath <jwollrath@web.de>
Tested-by: Julian Wollrath <jwollrath@web.de>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Florian Tobias Schandinat 2010-01-15 17:01:03 -08:00 committed by Linus Torvalds
parent 7e105057a3
commit 0b94190e1e
1 changed files with 3 additions and 1 deletions
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4
drivers/video/via/viafbdev.c
View file

@ -872,7 +872,9 @@ static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
return -ENODEV;
if (chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2)
/* LCD ouput does not support hw cursors (at least on VN896) */
if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
viafb_LCD_ON)
return -ENODEV;
viafb_show_hw_cursor(info, HW_Cursor_OFF);