These properties "reset-assert-us" and "reset-deassert-us" are the
general properties from mdio.yaml, which are used when the MDIO
bus driver is registered by the MDIO framework.
The general DT property already supports to do the correct config,
then compatible string is not needed to be checked for doing the
configs.
Given the complexity of your device, i doubt you can make it work
without using a compatible containing the ID register values. That
will get your driver loaded, and the probe method called which can
then deal with all the clocks and resets in whatever way it wants.
Andrew