Hans de Goede df1569f200 ASoC: rt5651: Add button press support ...

Enable button press detection for headsets by using the ovcd IRQ to get
notified of button presses.

This is modelled after (almost exactly copied from) the button press code
for the rt5640 which has identical ovcd hardware.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

2018-07-10 18:49:26 +01:00

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