Johan Hovold 7c3d02285a USB: serial: ch341: fix receiver regression ... While assumed not to make a difference, not using the factor-2 prescaler makes the receiver more susceptible to errors. Specifically, there have been reports of problems with devices that cannot generate a 115200 rate with a smaller error than 2.1% (e.g. 117647 bps). But this can also be reproduced with a low-speed RS232 tranceiver at 115200 when the input rate matches the nominal rate. So whenever possible, enable the factor-2 prescaler and halve the divisor in order to use settings closer to that of the previous algorithm. Fixes: 3571456508 ("USB: serial: ch341: reimplement line-speed handling") Cc: stable <stable@vger.kernel.org> # 5.5 Reported-by: Jakub Nantl <jn@forever.cz> Tested-by: Jakub Nantl <jn@forever.cz> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>		2020-02-10 10:10:35 +01:00
..
aircable.c
ark3116.c	USB: serial: ark3116: drop redundant init_termios	2019-04-26 08:37:53 +02:00
belkin_sa.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
belkin_sa.h	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
bus.c
ch341.c	USB: serial: ch341: fix receiver regression	2020-02-10 10:10:35 +01:00
console.c
cp210x.c	usb-serial: cp201x: support Mark-10 digital force gauge	2019-11-18 12:24:29 +01:00
cyberjack.c	USB: serial: cyberjack: fix spelling mistake "To" -> "Too"	2020-01-23 09:14:52 +01:00
cypress_m8.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
cypress_m8.h
digi_acceleport.c	USB: serial: digi_acceleport: clean up set_termios	2019-04-21 14:24:12 +02:00
empeg.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
ezusb_convert.pl
f81232.c	USB: serial: f81232: implement break control	2019-05-03 09:19:55 +02:00
f81534.c
ftdi_sio_ids.h	USB: serial: ftdi_sio: add device IDs for U-Blox C099-F9P	2019-11-14 18:55:31 +01:00
ftdi_sio.c	USB: serial: ftdi_sio: add device IDs for U-Blox C099-F9P	2019-11-14 18:55:31 +01:00
ftdi_sio.h
garmin_gps.c	USB: serial: garmin_gps: Use flexible-array member	2020-01-17 11:44:23 +01:00
generic.c	USB: serial: drop unnecessary goto	2019-04-30 10:25:04 +02:00
io_16654.h
io_edgeport.c	USB: serial: io_edgeport: add missing active-port sanity check	2020-01-17 16:22:57 +01:00
io_edgeport.h
io_ionsp.h
io_ti.c
io_ti.h
io_usbvend.h
ipaq.c
ipw.c
ir-usb.c	USB: serial: ir-usb: Silence harmless uninitialized variable warning	2020-02-10 10:06:51 +01:00
iuu_phoenix.c	USB: serial: iuu_phoenix: simplify init_termios	2019-04-26 08:38:00 +02:00
iuu_phoenix.h
Kconfig	usb: drop comment about 2 uhci drivers	2019-12-10 11:34:28 +01:00
keyspan_pda.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
keyspan_usa26msg.h	USB: serial: keyspan_usa: add proper SPDX lines for .h files	2019-01-18 11:09:32 +01:00
keyspan_usa28msg.h	USB: serial: keyspan_usa: add proper SPDX lines for .h files	2019-01-18 11:09:32 +01:00
keyspan_usa49msg.h	USB: serial: keyspan_usa: add proper SPDX lines for .h files	2019-01-18 11:09:32 +01:00
keyspan_usa67msg.h	USB: serial: keyspan_usa: add proper SPDX lines for .h files	2019-01-18 11:09:32 +01:00
keyspan_usa90msg.h	USB: serial: keyspan_usa: add proper SPDX lines for .h files	2019-01-18 11:09:32 +01:00
keyspan.c	USB: serial: keyspan: handle unbound ports	2020-01-17 16:22:58 +01:00
kl5kusb105.c
kl5kusb105.h
kobil_sct.c
kobil_sct.h
Makefile
Makefile-keyspan_pda_fw
mct_u232.c
mct_u232.h
metro-usb.c
mos7720.c	USB: serial: mos7720: fix remote wakeup	2019-11-12 09:53:07 +01:00
mos7840.c	USB: serial: mos7840: drop port open flag	2019-11-12 09:57:32 +01:00
mxuport.c
navman.c
omninet.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
opticon.c	Here are the USB-serial updates for 5.6-rc1, including:	2020-01-27 10:21:22 +01:00
option.c	USB: serial: option: add support for Quectel RM500Q in QDL mode	2020-01-16 16:54:34 +01:00
oti6858.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
oti6858.h
pl2303.c	USB: serial: pl2303: add support for PL2303HXN	2019-10-23 10:52:16 +02:00
pl2303.h	USB: serial: pl2303: add support for PL2303HXN	2019-10-23 10:52:16 +02:00
qcaux.c
qcserial.c
quatech2.c	USB: serial: quatech2: handle unbound ports	2020-01-17 16:22:59 +01:00
safe_serial.c
sierra.c
spcp8x5.c	USB: serial: spcp8x5: simplify init_termios	2019-04-26 08:38:02 +02:00
ssu100.c
symbolserial.c
ti_usb_3410_5052.c	USB: serial: ti_usb_3410_5052: clean up serial data access	2019-10-16 10:29:23 +02:00
upd78f0730.c
usb_debug.c
usb_wwan.c	USB: serial: option: add ZLP support for 0x1bc7/0x9010	2019-12-20 12:07:12 +01:00
usb-serial-simple.c	USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx	2020-01-13 15:04:35 +01:00
usb-serial.c	USB: serial: suppress driver bind attributes	2020-01-17 11:11:26 +01:00
usb-wwan.h	USB: serial: option: add ZLP support for 0x1bc7/0x9010	2019-12-20 12:07:12 +01:00
visor.c	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
visor.h	docs: usb: rename files to .rst and add them to drivers-api	2019-06-20 14:28:36 +02:00
whiteheat.c	USB: serial: whiteheat: fix line-speed endianness	2019-10-30 10:06:32 +01:00
whiteheat.h	USB: serial: whiteheat: fix line-speed endianness	2019-10-30 10:06:32 +01:00
wishbone-serial.c
xsens_mt.c