Hi,
up until recently, my Wolfson Pi audio card worked flawlessly with all the AIF1 audio outputs (I didn't test the SPDIF output). Now since I came back from vacation, audio output doesn't work anymore. I can record things from the DMIC and Line in just fine. But trying to play back anything only results in silence. I tried all possible ports (Headset, Line Out, Speakers) and everywhere it's the same.
Routing the tone generator to any of the outputs works, however. Also routing the DMIC input to any of the outputs works flawlessly. Only the actual audio input via AIF1 (i.e. the R-Pi) seems to be broken.
Running debug_output.sh, everything seems to be alright. I've attached the 3 debug output files in case anyone wants to look.
Any help would be appreciated.
P.S.: I've done some kernel hackery before to make the card output four channel audio on the line out and speaker output, which has worked fine. (Mainly modifying some files to accept 4 instead of only 2 channels). I doubt that this could have broken anything, since it only changed the data that was sent over I2S. Anyway, I've switched back to the provided wolfson kernel just to be sure my changes didn't introduce any unwanted behaviour. Just thought I'd also mention it for completeness.




