backlight: Rework backlight/fb interaction simplifying, lots

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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>

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Richard Purdie 2007-02-10 14:10:33 +00:00

parent b5c6916b31

commit 37ce69a57f

9 changed files with 68 additions and 184 deletions

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include/linux/fb.h

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