Re: [PATCH] serial: 8250: probe all 16550A variants by default

[Maxim Kochetkov]

This change breaks all my devices: OMAP-L138 (davinci based), LS1021A, 
T1040, Marvell (kirkwood2 based). Only enabling VARIANTS on all my 
devices fix the issue.

25.05.2020 20:28, Josh Triplett wrote:
> On Mon, May 25, 2020 at 04:02:38PM +0300, Vladimir Oltean wrote:
> > On NXP T1040, the UART is typically detected as 16550A_FSL64. After said
> > patch, it gets detected as plain 16550A and the Linux console is
> > completely garbled and missing characters.
> Interesting that there's*new*  powerpc hardware that needs these
> variants. I based the patch on the fact that, on x86 at least, hardware
> using these variants hasn't been made for a long time.