Any update on this? I'm also working on i2s for this board. Maybe it is easier to just program the i2s directly from the user guide https://linux-sunxi.org/images/2/24/H616_User_Manual_V1.0_cleaned.pdf (page 469) ? My device tree knowledge is limited, but programming the registers directly seems like it would work on any h61x soc ? If interested maybe we can take offline to slack or discord and post some possible solution here since this thread ranks high on google for i2s orange pi zero 2w