“failed to load overlay i2s-mmap” on 84 Kernel RPI Z2W

[ramfish]

Hopefully posting this in the right place:
Testing using RPI Z2W and SeeedStudio 2mic WM8690 audio board
Was running well before the latest kernel upgrade which was performed as part of clean install of SeedStudio (https://github.com/respeaker/seeed-voicecard)
No getting the MMA I2S fail to load
checked and enabled I2C in Config.txt - makes no difference (And was working on previous Kernel)
If somebody needs more debug info be happy to provide

[pelwell]

Wow - that overlay (and the driver change that supports it) hasn't existed since rpi-4.4.y, i.e. around 2017. My understanding based on this comment (#1004 (comment)) is that MMAP is enabled by default so there is no need for the overlay.

Having looked now, rpi-5.15.y still contains code in dmaengine_pcm_set_runtime_hwparams that sets SNDRV_PCM_INFO_MMAP and SNDRV_PCM_INFO_MMAP_VALID, so there should be no need for the overlay and driver patch.

[pelwell]

Hmmm - I see you've already opened an indentical issue in the respeaker/seeed-voicecard repo, a better home for it. I'll post the above comment (and follow) there, in case there is any fallout.