USB: cp210x: do not map baud rates to B0
Johan Hovold [Sun, 15 Jan 2012 23:36:50 +0000 (00:36 +0100)]
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>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Change-Id: I207291b93446265c4469ce1475040ee12927ae10
Reviewed-on: http://git-master/r/79701
Reviewed-by: Automatic_Commit_Validation_User

drivers/usb/serial/cp210x.c

index 60993dc..1bac7b9 100644 (file)
@@ -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;