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Commit d1620ca9 authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
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USB: cp210x: allow more baud rates above 1Mbaud 



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

Signed-off-by: default avatarJohan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent cdc32fd6

drivers/usb/serial/cp210x.c

+6 −5
Original line number Diff line number Diff line
@@ -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.

	 */