From: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Date: Sat, 16 Jan 2010 01:01:03 +0000 (-0800)
Subject: viafb: fix LCD hardware cursor regression
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=0b94190e1e60f96962b82d35729d7d44cf298ef8;p=deliverable%2Flinux.git

viafb: fix LCD hardware cursor regression

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>
---

diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c
index d8df17a7d5fc..a0004c17af6c 100644
--- a/drivers/video/via/viafbdev.c
+++ b/drivers/video/via/viafbdev.c
@@ -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);