[alsa-devel] [PATCH 2/3] asoc tlv320aic3x: add GPIO support

[Daniel Mack]

This patch adds support for AIC3x GPIO lines. They can be configured for
many possible functions as well as be driven manually. I also introduced
i2c read functionality since the GPIO state register has to be read from
hardware every time and can not be served from cache.

Signed-off-by: Daniel Mack <daniel at caiaq.de>

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