ASoC: codecs: msm8916-wcd-analog: add MBHC support

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MBHC (MultiButton Headset Control) support is available in pm8921 in two
blocks, one to detect mechanical headset insertion and removal and other
block to support headset type detection and 5 button detection and othe
features like impedance calculation.

This patch adds support to:
1> Support to NC and NO type of headset Jacks.
2> Mechanical insertion and detection of headset jack.
3> Detect a 3 pole Headphone and a 4 pole Headset.
4> Detect 5 buttons.

Tested it on DB410c with Audio Mezz board with 4 pole and 3 pole
headset/headphones.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Tested-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Srinivas Kandagatla 2017-08-17 10:02:10 +02:00 • committed by Mark Brown

parent e269998d58

commit de66b34550

2 changed files with 388 additions and 2 deletions

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17

Documentation/devicetree/bindings/sound/qcom,msm8916-wcd-analog.txt

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373

sound/soc/codecs/msm8916-wcd-analog.c

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