This patch adds Cygnus audio DMA driver. It supports playback
and capture modes and uses ringbuffers for data transfer.
Signed-off-by: Lori Hikichi
Signed-off-by: Simran Rai
Reviewed-by: Ray Jui
Reviewed-by: Arun Parameswaran
Reviewed-by: Scott Branden
Signed-off-by: Mark Brown