This is the rivafb equivalent of 238576e1.
It fixes rivafb having a default backlight brightness of 0 (no picture at
all) on a PBook 6,1.
Signed-off-by: NGuido Guenther <agx@sigxcpu.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Acked-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>