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extcon: arizona: Simplify HPDET based identification
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Mon, 25 Feb 2013 23:42:31 +0000 (23:42 +0000)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 2 Apr 2013 10:54:02 +0000 (11:54 +0100)
Rather than measuring both HP channels we can simply directly measure the
microphone impedance and then rely on MICDET for final confirmation of the
presence of a suitable microphone. This improves the overall performance
of the identification process.

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

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