linux-kernel - [PATCH] serial/imx: fix custom-baudrate handling

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Message-Id: <1374166369-20342-1-git-send-email-h.feurstein@gmail.com>
Date:	Thu, 18 Jul 2013 18:52:49 +0200
From:	Hubert Feurstein <h.feurstein@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jslaby@...e.cz>
Cc:	linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
	Hubert Feurstein <h.feurstein@...il.com>
Subject: [PATCH] serial/imx: fix custom-baudrate handling

It was not possible to set custom-baudrates like 62500.

Signed-off-by: Hubert Feurstein <h.feurstein@...il.com>
---
 drivers/tty/serial/imx.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 415cec6..a6671ed 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1020,6 +1020,11 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 		 */
 		div = 1;
 	} else {
+		/* custom-baudrate handling */
+		div = sport->port.uartclk / (baud * 16);
+		if (baud == 38400 && quot != div)
+			baud = sport->port.uartclk / (quot * 16);
+
 		div = sport->port.uartclk / (baud * 16);
 		if (div > 7)
 			div = 7;
-- 
1.7.9.5

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