regulator: wm8994: Use main I2C device as struct device
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 8 May 2012 16:45:31 +0000 (17:45 +0100)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 8 May 2012 17:41:07 +0000 (18:41 +0100)
This makes logging a bit clearer as it gives the actual bus location and
makes things like board hookup a bit smoother.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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