Mark Brown 18996db262 mfd: Cache wm8994 chip revision ...

There's no need to mark the chip revision registers as volatile, it won't
change at runtime so we can cache it from the device at startup.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2012-05-01 12:00:21 +02:00

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