mfd: Set da903x bits if new value is different from the old one
authorAxel Lin <axel.lin@gmail.com>
Mon, 31 Oct 2011 06:23:03 +0000 (14:23 +0800)
committerSamuel Ortiz <sameo@linux.intel.com>
Tue, 20 Dec 2011 17:50:56 +0000 (18:50 +0100)
commitaf65e6cef488be0bd15932c8ce9801a47a183051
tree2d499cce07dc1d618ed273df3b368e332a3e3e45
parent890c98e3746fa8705cc9c70979e64360cf2d8a31
mfd: Set da903x bits if new value is different from the old one

It does not make sense to write new value only when all the bit_mask
bits are zero.
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>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
drivers/mfd/da903x.c