diff options
author | Max Filippov <jcmvbkbc@gmail.com> | 2014-12-26 20:19:38 +0300 |
---|---|---|
committer | Mark Brown <broonie@kernel.org> | 2015-01-08 19:52:11 +0000 |
commit | 57b7068de5d0cca8ac6e21085b843c1bbd49d3f4 (patch) | |
tree | 7f967c6eada43604a8dd30e88141f70bbc4e91b5 | |
parent | 97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff) |
ASoC: add xtensa xtfpga I2S interface and platform
XTFPGA boards provides an audio subsystem that consists of TI CDCE706
clock synthesizer, I2S transmitter and TLV320AIC23 audio codec.
I2S transmitter has MMIO-based interface that resembles that of the
OpenCores I2S transmitter. I2S transmitter is always a master on I2S
bus. There's no specialized audio DMA, sample data are transferred to
I2S transmitter FIFO by CPU through memory-mapped queue interface.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>