commit 37ce69a57ff217a4ca0871e9ee5aa58c052b7d86
author Richard Purdie <rpurdie@rpsys.net> Sat Feb 10 14:10:33 2007 +0000
committer Richard Purdie <rpurdie@rpsys.net> Tue Feb 20 08:38:46 2007 +0000
tree 21cdbb8c988eed585437bb502ca15c2998ea7fbc
parent b5c6916b3118d4301dc2f8cf8d33f13e5324a3a5

backlight: Rework backlight/fb interaction simplifying, lots

fb_info->bl_mutex is badly thought out and the backlight class doesn't
need it if the framebuffer/backlight register/unregister order is
consistent, particularly after the backlight locking fixes.

Fix the drivers to use the order:

backlight_device_register()
register_framebuffer()
unregister_framebuffer()
backlight_device_unregister()

and turn bl_mutex into a lock for the bl_curve data only.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>