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ASoC: Support GPIO based microphone detection for WM8904
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 16 Mar 2010 14:26:45 +0000 (14:26 +0000)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 16 Mar 2010 16:03:30 +0000 (16:03 +0000)
The WM8904 allows microphone detection signals to be brought out as
alternate functions of the GPIO signals which can be detected using
interrupt inputs on the CPU. Allow this to be configured using
platform data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>

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