From 3ae5a60fe9ff53c14caee09090954b8551a6707c Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 16 Jan 2012 00:36:53 +0100 Subject: [PATCH] USB: cp210x: allow more baud rates above 1Mbaud commit d1620ca9e7bb0030068c3b45b653defde8839dac upstream. Allow more baud rates to be set in [1M,2M] baud. Signed-off-by: Johan Hovold Cc: Preston Fick Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 07d297f5fe4..a5152379cb4 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -388,10 +388,10 @@ 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; } @@ -611,7 +611,8 @@ 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. */ -- 2.11.4.GIT