]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
fbdev: fix FB console blanking
authorDmitry Baryshkov <dbaryshkov@gmail.com>
Mon, 1 Dec 2008 21:14:05 +0000 (13:14 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 2 Dec 2008 03:55:25 +0000 (19:55 -0800)
commitbca404afdc5206c3bb30168315ee8a98a579ec65
tree82f6e2e5cf775fe576eee4ae2e0ab0aa49e6d510
parent03801553630c4bec6682108800c9b2de64bdbd37
fbdev: fix FB console blanking

The commit aef7db4bd5a3b6068dfa05919a3d685199eed116 fixed the problem with
recursive locking in fb blanking code if blank is caused by user setting
the /sys/class/graphics/fb*/blank.  However this broke the fbcon timeout
blanking.

If you use a driver that defines ->fb_blank operation and at the same time
that driver relies on other driver (e.g.  backlight or lcd class) to blank
the screen, when the fbcon times out and tries to blank the fb, it will
call only fb driver blanker and won't notify the other driver.  Thus FB
output is disabled, but the screen isn't blanked.

Restore fbcon blanking and at the same time apply the proper fix for the
above problem: if fbcon_blank is called with FBINFO_FLAG_USEREVENT, we are
already called through notification from fb_blank, thus we don't have to
blank the fb again.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/console/fbcon.c