From: Johan Hovold <jhovold@gmail.com>
Date: Sun, 15 Jan 2012 23:36:50 +0000 (+0100)
Subject: USB: cp210x: do not map baud rates to B0
X-Git-Tag: v3.0.19~5
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bb04bab862c91d0bd75e5c5339039e5444973d16;p=karo-tx-linux.git

USB: cp210x: do not map baud rates to B0

commit be125d9c8d59560e7cc2d6e2b65c8fd233498ab7 upstream.

We do not implement B0 hangup yet so map low baudrates to 300bps.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 60993dc7eb8d..1bac7b9223f2 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -357,8 +357,8 @@ static inline int cp210x_set_config_single(struct usb_serial_port *port,
  * Quantises the baud rate as per AN205 Table 1
  */
 static unsigned int cp210x_quantise_baudrate(unsigned int baud) {
-	if      (baud <= 56)       baud = 0;
-	else if (baud <= 300)      baud = 300;
+	if (baud <= 300)
+		baud = 300;
 	else if (baud <= 600)      baud = 600;
 	else if (baud <= 1200)     baud = 1200;
 	else if (baud <= 1800)     baud = 1800;