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ALSA DMA or ISA not working on IMX6Q

Question asked by John Turnur on Mar 8, 2013
Latest reply on Dec 19, 2013 by Vasan V S



We are having a hardware with IMX6Q and TAS5706 audio amplifier chip.


Its configuration is different than standard SABRE SD board.


I have written a driver which works with ALSA.


I am able to communicat IC with I2C commands.


But i am not able to tranfer data .


getting follwoing error


"playback write error (DMA or IRQ trouble?)"

"aplay: pcm_write"

"write error: I/O error"


At this time state is in SNDRV_PCM_STATE_RUNNING.