12:05 <xdarklight> jbrunet: regarding my problem where I get some I2S output from the "previous playback buffer" when starting playback (speaker-test -c2 can reproduce it for me: when it starts outputting to the right channel I still hear some left-channel audio at the very beginning). I found that setting AIU_FIFO_I2S_BLOCK = 64 (which is what the vendor driver chooses for 2-channel audio) "fixes" that problem but only outputs noise now...

12:06 <xdarklight> jbrunet: also is there a specific reason why you set AIU_MEM_MASK_CH_RD and AIU_MEM_MASK_CH_MEM to 0xff unconditionally? I tried setting it to 0x3 for 2-channel audio (like the vendor driver does) and that also seems to fix the problem mentioned above - but also it breaks the audio output and I only hear noise now

12:07 <xdarklight> jbrunet: I'm happy to do any experiments or join a discussion - for now it seems like I'm stuck though :/