hello moshe.arad,
please also refer to Topic 241898 and apply kernel patch to configure CPHY mode by device tree instead of hardcode values.
so, is the port binding correct? are you now able to register video node to linux kernel?
please try to verify the port binding result, as following. $ sudo media-ctl -p -d /dev/media0
please share capture pipeline you’re using, you may also share the kernel logs for reference,
thanks