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USB: cp210x: allow more baud rates above 1Mbaud

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Allow more baud rates to be set in [1M,2M] baud.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Johan Hovold 2012-01-16 00:36:53 +01:00 committed by Greg Kroah-Hartman
parent cdc32fd6f7
commit d1620ca9e7
1 changed files with 6 additions and 5 deletions
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11
drivers/usb/serial/cp210x.c
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@ -394,10 +394,10 @@ static unsigned int cp210x_quantise_baudrate(unsigned int baud) {
else if (baud <= 491520) baud = 460800;
else if (baud <= 567138) baud = 500000;
else if (baud <= 670254) baud = 576000;
else if (baud <= 1053257) baud = 921600;
else if (baud <= 1474560) baud = 1228800;
else if (baud <= 2457600) baud = 1843200;
else baud = 3686400;
else if (baud < 1000000)
baud = 921600;
else if (baud > 2000000)
baud = 2000000;
return baud;
}
@ -615,7 +615,8 @@ static void cp210x_change_speed(struct tty_struct *tty,
baud = tty->termios->c_ospeed;
/* This maps the requested rate to a rate valid on cp2102 or cp2103.
/* This maps the requested rate to a rate valid on cp2102 or cp2103,
* or to an arbitrary rate in [1M,2M].
*
* NOTE: B0 is not implemented.
*/