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(parent: d496aab) | patch
drivers/video/backlight/adp88x0_bl.c: fix bit testing logic
authorAxel Lin <axel.lin@gmail.com>
Fri, 20 Jan 2012 22:34:05 +0000 (14:34 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Mon, 23 Jan 2012 16:38:48 +0000 (08:38 -0800)
commit36c3e75907c8cb515fad260190ca1beb7e53df96
tree101610ceccbcd0956f7b7d1799af1e357d81ed79tree | snapshot
parentd496aab567e7e52b3e974c9192a5de6e77dce32ccommit | diff
drivers/video/backlight/adp88x0_bl.c: fix bit testing logic

We need to write new value if the bit mask fields of new value is not
equal to old value.  It does not make sense to write new value only when
all the bit_mask bits are zero.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Michael Hennerich <michael.hennerich@analog.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/video/backlight/adp8860_bl.c diff | blob | history
drivers/video/backlight/adp8870_bl.c diff | blob | history
Domain: System / Kernel;