ASoC: dt-bindings: add dt bindings for adau1977 audio codec

Add device-tree bindings documentation file for ADAU1977 audio codec.
This describes device-tree fields that are already supported by the driver.

The driver supports both I2C AND and SPI, and this doc covers both aspects
of the DT configuration.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexandru Ardelean 2018-10-02 15:06:30 +03:00 • committed by Mark Brown
commit d5a5dcd3f8
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