From: Stefan Smietanowski <stesmi@stesmi.com>
To: Mathias Adam <a2@adamis.de>
Cc: linux-kernel@vger.kernel.org, rmk+serial@arm.linux.org.uk
Subject: Re: [PATCH] 8250.c: Fix to make 16C950 UARTs work
Date: Fri, 09 Sep 2005 03:58:29 +0200 [thread overview]
Message-ID: <4320EC45.1080108@stesmi.com> (raw)
In-Reply-To: <20050909013144.GA6660@adamis.de>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Mathias Adam wrote:
> Currently serial8250_set_termios() refuses to program a baud rate larger
> than uartclk/16. However the 16C950 supports baud rates up to uartclk/4.
> This worked already with Linux 2.4 so the biggest part of this patch was
> simply taken from there and adapted to 2.6.
> - unsigned int baud, quot;
> + unsigned int baud, quot, max_baud;
^^^^^^^^
> - baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
> + MAX_baud = (up->port.type == PORT_16C950 ? port->uartclk/4 : port->uartclk/16);
^^^^^^^^
Did you even compile test this?
// Stefan
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (MingW32)
iD8DBQFDIOxFBrn2kJu9P78RAnG3AJ9EJKl6q4Q4+jXRdMifvmOEdO+HewCfUPd8
T2qQREDAgUq2C7j9yfaPemQ=
=hGK0
-----END PGP SIGNATURE-----
next prev parent reply other threads:[~2005-09-09 1:50 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-09 1:31 [PATCH] 8250.c: Fix to make 16C950 UARTs work Mathias Adam
2005-09-09 1:58 ` Stefan Smietanowski [this message]
2005-09-09 2:49 ` Mathias Adam
2005-09-09 10:18 ` Russell King
2005-09-09 14:42 ` Mathias Adam
2005-09-16 12:11 ` Mathias Adam
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4320EC45.1080108@stesmi.com \
--to=stesmi@stesmi.com \
--cc=a2@adamis.de \
--cc=linux-kernel@vger.kernel.org \
--cc=rmk+serial@arm.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.