[PATCH v2 00/10] rt2x00: rt2x00: improve calling conventions for register accessors

[Arnd Bergmann]

I've managed to split up my long patch into a series of reasonble
steps now.

The first two are required to fix a regression from commit 41977e86c984
("rt2x00: add support for MT7620"), the rest are just cleanups to
have a consistent state across all the register access functions.

     Arnd