I think AP6256 firmware should be submitted to linux-firmware. The mainline kernel driver supports AP6256, but linux-firmware has no corresponding firmware, which is not good.
I think this is a good ideas, any volunteer can help us to submit the AP6256 firmware to upstream?
As far as I know, if you don’t know some maintainer, the process is long…
We get the Kr00k fixed firmware for AP6256 on ROCK Pi 4.