Re: [RFC PATCH 13/16] net: dsa: mv88e6xxx: Refactor MDIO so driver registers mdio bus

Hi Andrew,

I like the s/phy/mdio/ renaming, but please move it in its own
non-functional patch for easier reviewing.

Also, we may want to use this opportunity to get rid of some _ prefixed
functions. It is hard to following the distinction between these two
following signatures:

    int _mv88e6xxx_mdio_read(struct mv88e6xxx_priv_state *ps, int addr, int reg_num)

and

    int mv88e6xxx_mdio_read(struct mii_bus *bus, int port, int regnum)

(which take different first argument.)

It would be great to introduce here the two low-level, bus-agnostic,
SMI unlocked functions: mv88e6xxx_read() and mv88e6xxx_write().

Thanks,

        Vivien