Phantom Lake UART support

[Vladimir Ratnikov]

Hello!

At current point we have an opportunity to have CONFIG_SERIAL_8250_MID
being compiled into kernel in order to be available as serial
console(according to debian, there was such problem before and current
kernels has 'CONFIG_SERIAL_8250_MID=y' instead of
'CONFIG_SERIAL_8250_MID=m'

ticket: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=864368
patch:
https://salsa.debian.org/kernel-team/linux/-/commit/7618511643be57b5587f66729e1c0121eb4617f6

So I'm wondering if there's a way of getting this module being compiled
into the kernel and being accepted in upstream or if there is something
cons about it ?

We've rebuilt the kernel with  'CONFIG_SERIAL_8250_MID=y' instead of
'CONFIG_SERIAL_8250_MID=m' and haven't seen any problems and it worked as
expected. I believe, it'll be better for everyone having this module to be
the part of kernel.


Thanks!
-Vladimir
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