linux/drivers/tty
Steven Liu 307b69d178 serial: 8250_port: reset LSR DLAB before set MCR
When setting the 16550 serial port baud rate, you need
to configure the UART to loopback mode. After setting
the DLL and DLH, you need to reset the LSR first,
and then configure the MCR to make the UART return
to the normal mode. If you do not reset the LSR
first, an error will occur when the UART RX is still
receiving data.

Signed-off-by: Steven Liu <steven.liu@rock-chips.com>
Change-Id: Ia940b278554ef1d4e7a6c4550fe4a4600407a57e
2021-07-27 17:47:21 +08:00
..
hvc ANDROID: tty: hvc_dcc: Save irq flags when locking 2020-12-14 18:20:14 +00:00
ipwireless
serdev
serial serial: 8250_port: reset LSR DLAB before set MCR 2021-07-27 17:47:21 +08:00
vt tty: vt: always invoke vc->vc_sw->con_resize callback 2021-05-26 12:06:56 +02:00
amiserial.c tty: amiserial: fix TIOCSSERIAL permission check 2021-05-14 09:49:55 +02:00
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c tty: moxa: fix TIOCSSERIAL permission check 2021-05-14 09:49:56 +02:00
moxa.h
mxser.c
mxser.h
n_gsm.c tty: n_gsm: check error while registering tty devices 2021-05-11 14:47:21 +02:00
n_hdlc.c tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
n_null.c tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
n_r3964.c tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
n_tracerouter.c tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
n_tracesink.c tty: convert tty_ldisc_ops 'read()' function to take a kernel pointer 2021-03-04 11:37:36 +01:00
n_tracesink.h
n_tty.c tty: teach the n_tty ICANON case about the new "cookie continuations" too 2021-03-07 12:34:16 +01:00
nozomi.c
pty.c
rocket_int.h
rocket.c
rocket.h
synclink_gt.c
synclink.c
synclinkmp.c
sysrq.c Merge 3e4fb4346c ("Merge tag 'spdx-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx") into android-mailine 2020-10-26 07:05:05 +01:00
tty_audit.c
tty_baudrate.c
tty_buffer.c
tty_io.c tty: fix return value for unsupported ioctls 2021-05-14 09:50:18 +02:00
tty_ioctl.c tty: fix return value for unsupported termiox ioctls 2021-05-14 09:50:19 +02:00
tty_jobctrl.c tty: Fix ->session locking 2020-12-04 17:39:58 +01:00
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c