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>
diff --git a/MAINTAINERS b/MAINTAINERS
index ddb9ac8..f1eb40f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -10628,6 +10628,7 @@
L: linux-xtensa@linux-xtensa.org
S: Maintained
F: drivers/spi/spi-xtensa-xtfpga.c
+F: sound/soc/xtensa/xtfpga-i2s.c
YAM DRIVER FOR AX.25
M: Jean-Paul Roubelat <jpr@f6fbb.org>
