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>
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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
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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
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