Axel Lin 26bc4e0cc5 mfd: Set tps6586x 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>

2011-12-20 18:50:56 +01:00

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