serial drivers polishing

Enrico Weigelt, metux IT consult
2019-04-27T12:53:22Z

Hello folks,

here's another attempt of polishing the serial drivers:

* lots of minor cleanups to make checkpatch happier
(eg. formatting, includes, inttypes, ...)

* use appropriate logging helpers instead of printk()

* consequent use of mapsize/mapbase fields:
the basic idea is, all drivers should fill mapbase/mapbase fields at
init time and later only use those fields, instead of hardcoded values
(later on, we can add generic helpers for the map/unmap stuff, etc)

* untwisting serial8250_port_size() at all:
move the iomem size probing to initialization time, move out some
platform specific magic to corresponding platform code, etc.

Unfortunately, I don't have the actual hardware to really test all
the code, so please let me know if there's something broken in here.

have fun,

--mtx