linux-kernel - RE: [PATCH] tty: serial: Use fifo in 8250 console driver

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Date:   Fri, 12 Nov 2021 11:58:02 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     'Wander Costa' <wcosta@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
CC:     "wander@...hat.com" <wander@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>,
        "Maciej W. Rozycki" <macro@...am.me.uk>,
        Johan Hovold <johan@...nel.org>,
        Andrew Jeffery <andrew@...id.au>,
        "open list:SERIAL DRIVERS" <linux-serial@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] tty: serial: Use fifo in 8250 console driver

> > Here is a translation of my comment to a roadmap.
> >
> > 1. Introduce yet another UART quirk or capability (see corresponding
> > UART_CAP_* or UART_*_QUIRK definitions)
> > 2. Add your patch conditionally based on the above
> > 3. Enable it on UART(s) you _have tested_
> >
> Thank you for the feedback, I submitted a v2 patch with your proposed changes,

Or put the UART into loopback and see how many characters will
actually fit in the fifos.

	David

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