USB: serial: ftdi_sio: fix FTX sub-integer prescaler

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The most-significant bit of the sub-integer-prescaler index is set in
the high byte of the baudrate request wIndex also for FTX devices.

This fixes rates like 1152000 which got mapped to 1.2 MBd.

Reported-by: Vladimir <svv75@mail.ru>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=210351
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>

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Johan Hovold 2021-01-26 14:59:17 +01:00

parent e2f2dea34c

commit 528222d0c8

1 changed files with 3 additions and 2 deletions

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drivers/usb/serial/ftdi_sio.c

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