Hi Vinod > > This rcar-audmapp driver is very limited usage, and user is only sound device/driver. > > Sound driver configures both 1st/2nd DMAC if needed (it depends on platform). > > Sound driver knows all reg address / mem address which are needed for 1st/2nd DMAC settings. > > 1st/2nd DMAC needs general DMAEngine settings method, not special. > > Now, sound driver + 1st/2nd DMAC works well on my local environment. > Are you not using the sound dmaengine library then, right? At this point, yes. But, I got request from Mark to use it # current dmaengine "method" on my driver is same as library. # but I need to fix non-dmaengine area > One more question, audio data will be in system memory and then it needs to > be transfered to periphral FIFO, how will data travel thru these two DMAs? like this 1st DMA 2nd DMA [mem] -> [periphral IP-A] -> [periphral IP-B] -> speaker Best regards --- Kuninori Morimoto -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html