On Fri, Mar 20, 2020 at 11:41 AM Lubomir Rintel [off-list ref] wrote:

There are separate compatible strings for ns16550 and ns16550a and the
Freescale serial port is compatible with the latter one, with working
FIFO.

I don't think changing this is right. First, 'ns16550' is what's
documented in the DT spec (and ePAPR which it's based on).

Second, these dts files are pretty mature/stable, so I'm less inclined
to change them. AFAICT, this change either enables the fifo (which
would be an untested change in behavior) or has no effect because the
fifo is auto-detected.

Use the appropriate compatible string that is also consistent with ARM64
Freescale boards and thus avoiding one special case in the binding schema.

Well, that's annoying...

Rob