Hi Geert > Thanks for your patch, which is now commit f28dbaa958fbd8fb ("ASoC: > ak4613: add TDM256 support") in v5.19-rc1. (snip) > This WARN_ON() is triggered on Ebisu-4D, as sdti_num = 0. > It can be reproduced by booting renesas-devel-2022-06-07-v5.19-rc1 > using renesas_defconfig. Thank you for your reporting ! The patch assumed ak4613 is probed via Audio-Graph-Card, but Ebisu-4D is probing ak4613 via Simple-Audio-Card. I will post fixup patch, I hope it can solve the issue. Please check and send Tested-by to it. Thank you for your help !! Best regards --- Kuninori Morimoto