Calling rtl822x_probe() on phy devices which uses the rtl822x_read_mmd()
and rtl822x_write_mmd() functions makes no sense and the probe ends with
an EOPNOTSUPP error.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Early versions (?) of the RTL8221B PHY cannot be identified in a regular
Clause-45 bus scan as the PHY doesn't report the implemented MMDs
correctly but returns 0 instead.
Implement custom identify function using the PKGID instead of iterating
over the implemented MMDs to work-around this problem.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
