From: Axel Lin <axel.lin@gmail.com>
Date: Mon, 31 Oct 2011 03:00:06 +0000 (+0800)
Subject: mfd: Set adp5520 bits if new value is different from the old one
X-Git-Tag: v3.2-rc7~14^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=890c98e3746fa8705cc9c70979e64360cf2d8a31;p=pandora-kernel.git

mfd: Set adp5520 bits if new value is different from the old one

Current code checks if all the bit_mask bits are all zero is wrong.
We need to write new value if the bit mask fields of new value is
not equal to old value.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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