aha/drivers/video/riva
Richard Purdie 28ee086d5b backlight: Fix external uses of backlight internal semaphore
backlight_device->sem has a very specific use as documented in the
header file. The external users of this are using it for a different
reason, to serialise access to the update_status() method.

backlight users were supposed to implement their own internal
serialisation of update_status() if needed but everyone is doing
things differently and incorrectly. Therefore add a global mutex to
take care of serialisation for everyone, once and for all.

Locking for get_brightness remains optional since most users don't
need it.

Also update the lcd class in a similar way.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-02-20 08:38:45 +00:00
..
fbdev.c backlight: Fix external uses of backlight internal semaphore 2007-02-20 08:38:45 +00:00
Makefile Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nv4ref.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nv_driver.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nv_type.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
nvreg.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
riva_hw.c [PATCH] atyfb, rivafb: minor fixes 2006-12-08 08:29:05 -08:00
riva_hw.h [PATCH] atyfb, rivafb: minor fixes 2006-12-08 08:29:05 -08:00
riva_tbl.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
rivafb-i2c.c [PATCH] remove many unneeded #includes of sched.h 2007-02-14 08:09:54 -08:00
rivafb.h [PATCH] Video: fb, add true ref_count atomicity 2007-02-12 09:48:42 -08:00