I also wish to try to implement the wandboard with 3 audios (AUD3, AUD4, AUD5) that expands from the original Wandboard with one additional codec with pin connections like edsut found. For the software part, I have found it tough to do the resource allocation (SSI, DMA) and the ALSA/ASoc registration - how the system recognizse these three codecs. These tasks should be done with device tree and kernel driver modifications.
I am wondering if you have made any progress on this implementation, and if possible, can you please share some experiences here. I would be grateful for this