diff options
| author | Johan Hovold <jhovold@gmail.com> | 2012-01-16 03:36:53 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 23:58:46 +0400 |
| commit | d1620ca9e7bb0030068c3b45b653defde8839dac (patch) | |
| tree | 57d4cb2495f0a6e3aea9aa1635a4112a86f3378a /drivers/usb/serial/cp210x.c | |
| parent | cdc32fd6f7b2b2580d7f1b74563f888e4dd9eb8a (diff) | |
| download | linux-d1620ca9e7bb0030068c3b45b653defde8839dac.tar.xz | |
USB: cp210x: allow more baud rates above 1Mbaud
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>
Diffstat (limited to 'drivers/usb/serial/cp210x.c')
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 5c3e8592fd22..8dbf51a43c45 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -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. */ |