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linux/drivers/tty/serial
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Erwan Le Ray f264c6f6ae serial: stm32: fix incorrect characters on console 
Incorrect characters are observed on console during boot. This issue occurs
when init/main.c is modifying termios settings to open /dev/console on the
rootfs.

This patch adds a waiting loop in set_termios to wait for TX shift register
empty (and TX FIFO if any) before stopping serial port.

Fixes: 48a6092fb41f ("serial: stm32-usart: Add STM32 USART Driver")
Signed-off-by: Erwan Le Ray <erwan.leray@foss.st.com>
Link: https://lore.kernel.org/r/20210304162308.8984-4-erwan.leray@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-10 09:34:10 +01:00
..
8250
serial: 8250_exar: Constify the software nodes
2021-03-10 09:34:10 +01:00
cpm_uart
tty: cpm_uart, use port->flags instead of low_latency
2021-01-07 16:17:31 +01:00
jsm
tty: jsm_tty, make char+error handling readable
2021-03-10 09:34:07 +01:00
21285.c
tty: serial: 21285: fix lockup on open
2020-10-28 13:39:14 +01:00
altera_jtaguart.c
serial: altera_jtaguart: Replace HTTP links with HTTPS ones
2020-07-21 20:04:54 +02:00
altera_uart.c
…
amba-pl010.c
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
amba-pl011.c
amba: Make the remove callback return void
2021-02-02 14:25:50 +01:00
amba-pl011.h
…
apbuart.c
tty/serial: Migrate apbuart to use has_sysrq
2019-12-18 15:04:44 +01:00
apbuart.h
…
ar933x_uart.c
serial: ar933x_uart: disable clk on error handling path in probe
2020-11-12 09:41:07 +01:00
arc_uart.c
tty/serial: Migrate arc_uart to use has_sysrq
2019-12-18 15:04:45 +01:00
atmel_serial.c
Linux 5.9-rc3
2020-08-31 07:19:25 +02:00
atmel_serial.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
bcm63xx_uart.c
Revert "tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart"
2020-05-04 11:49:57 +02:00
clps711x.c
tty/serial: Migrate clps711x to use has_sysrq
2019-12-18 15:04:46 +01:00
digicolor-usart.c
…
dz.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
dz.h
…
earlycon-arm-semihost.c
…
earlycon-riscv-sbi.c
…
earlycon.c
earlycon: simplify earlycon-table implementation
2020-12-04 15:49:48 +01:00
fsl_linflexuart.c
tty: serial: linflexuart: Remove unnecessary '|' operation and add error count
2020-11-06 17:12:30 +01:00
fsl_lpuart.c
serial: fsl_lpuart: Use of_device_get_match_data()
2021-01-20 18:48:15 +01:00
icom.c
tty: serial: icom: Use DEFINE_SPINLOCK() for spinlock
2020-12-28 16:14:01 +01:00
icom.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
imx_earlycon.c
tty: serial: imx: add imx earlycon driver
2020-07-29 17:11:02 +02:00
imx.c
tty: imx, use ms_to_ktime
2021-03-10 09:34:06 +01:00
ip22zilog.c
tty/serial: Migrate ip22zilog to use has_sysrq
2019-12-18 15:04:50 +01:00
ip22zilog.h
…
Kconfig
tty: serial: samsung_tty: Add support for Apple UARTs
2021-03-10 09:34:10 +01:00
kgdb_nmi.c
tty: do not check tty_unregister_driver's return value
2021-03-10 09:34:09 +01:00
kgdboc.c
Linux 5.8-rc6
2020-07-20 09:39:11 +02:00
lantiq.c
tty/serial/lantiq: convert comma to semicolon
2020-12-28 16:10:50 +01:00
liteuart.c
serial: liteuart: fix return value check in liteuart_probe()
2021-03-10 09:34:10 +01:00
lpc32xx_hs.c
tty: serial: lpc32xx_hs: Remove unused variable 'tmp'
2020-11-06 10:54:04 +01:00
Makefile
serial: ifx6x60: Remove driver for deprecated platform
2021-01-26 19:21:49 +01:00
max310x.c
serial: max310x: Use devm_clk_get_optional() to get the input clock
2020-10-28 13:31:32 +01:00
max3100.c
tty_port: drop last traces of low_latency
2021-01-07 16:17:32 +01:00
mcf.c
serial: mcf: add sysrq capability
2020-10-05 13:32:30 +02:00
men_z135_uart.c
tty: serial, fix kernel-doc
2020-08-18 13:51:18 +02:00
meson_uart.c
tty: serial: meson: enable console as module
2020-12-11 17:14:22 +01:00
milbeaut_usio.c
tty/serial: Migrate milbeaut_usio to use has_sysrq
2019-12-18 15:04:51 +01:00
mpc52xx_uart.c
tty/serial: mpc52xx_uart: Don't zero port->sysrq
2019-12-18 15:04:52 +01:00
mps2-uart.c
…
msm_serial.c
tty: serial: msm_serial: Constify msm_uart_pops
2020-11-06 17:16:36 +01:00
mux.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
mvebu-uart.c
serial: mvebu-uart: fix tx lost characters at power off
2020-12-28 16:17:34 +01:00
mxs-auart.c
serial: mxs-auart: Remove <asm/cacheflush.h>
2021-01-20 18:48:19 +01:00
omap-serial.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
owl-uart.c
tty: serial: owl: Add support for kernel debugger
2021-01-13 17:16:54 +01:00
pch_uart.c
tty: serial: pch_uart.c: remove debugfs dentry pointer
2021-03-10 09:34:05 +01:00
pic32_uart.c
serial: pic32_uart: Use uart_console() helper
2020-03-12 10:00:22 +01:00
pic32_uart.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
pmac_zilog.c
m68k: Fix WARNING splat in pmac_zilog driver
2020-11-23 11:31:00 +01:00
pmac_zilog.h
tty: serial: pmac_zilog: Remove unused disposable variable 'garbage'
2020-11-13 15:28:27 +01:00
pxa.c
tty/serial: Migrate pxa to use has_sysrq
2019-12-18 15:04:57 +01:00
qcom_geni_serial.c
serial: qcom_geni_serial: To correct QUP Version detection logic
2020-09-30 09:12:03 +02:00
rda-uart.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
rp2.c
…
sa1100.c
serial: sa1100: use platform_get_resource()
2020-08-18 15:02:06 +02:00
samsung_tty.c
tty: serial: samsung_tty: Add earlycon support for Apple UARTs
2021-03-10 09:34:10 +01:00
sb1250-duart.c
MIPS: Replace SIBYTE_1956_WAR by CONFIG_SB1_PASS_2_WORKAROUNDS
2020-09-07 22:24:51 +02:00
sc16is7xx.c
sc16is7xx: Set iobase to device index
2020-09-04 17:14:47 +02:00
sccnxp.c
tty/serial: Migrate sccnxp to use has_sysrq
2019-12-18 15:05:00 +01:00
serial_core.c
serial: core: Remove BUG_ON(in_interrupt()) check
2021-02-09 11:45:04 +01:00
serial_mctrl_gpio.c
serial: mctrl_gpio: Fix passing zero to 'ERR_PTR' warning
2020-11-06 17:12:05 +01:00
serial_mctrl_gpio.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
serial_txx9.c
serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
2020-11-06 17:24:41 +01:00
serial-tegra.c
tty: serial: serial-tegra: Provide some missing struct member descriptions
2020-11-06 10:54:05 +01:00
sh-sci.c
Revert "serial: sh-sci: Initialize spinlock for uart console"
2020-07-21 18:21:49 +02:00
sh-sci.h
serial: sh-sci: Drop unused include
2020-04-16 16:13:34 +02:00
sifive.c
riscv: Fix sifive serial driver
2021-01-07 18:02:13 -08:00
sprd_serial.c
serial: sprd: remove redundant sprd_port cleanup
2020-03-18 12:20:04 +01:00
st-asc.c
tty: st-asc: switch to using devm_gpiod_get()
2020-01-10 14:01:33 +01:00
stm32-usart.c
serial: stm32: fix incorrect characters on console
2021-03-10 09:34:10 +01:00
stm32-usart.h
serial: stm32: Use of_device_get_match_data()
2021-01-26 12:17:32 -06:00
suncore.c
…
sunhv.c
Revert "serial: sunhv: Initialize lock for non-registered console"
2020-07-21 18:21:49 +02:00
sunsab.c
serial: sunsab: Return proper error code from console ->setup() hook
2020-06-25 14:21:28 +02:00
sunsab.h
…
sunsu.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
sunzilog.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
sunzilog.h
…
tegra-tcu.c
…
timbuart.c
tty: timbuart: convert tasklets to use new tasklet_setup() API
2020-08-18 13:33:13 +02:00
timbuart.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
uartlite.c
tty: serial: uartlite: Support probe deferral
2020-12-04 16:51:40 +01:00
ucc_uart.c
serial: ucc_uart: make qe_uart_set_mctrl() static
2020-09-16 13:14:58 +02:00
vr41xx_siu.c
tty/serial: Migrate vr41xx_siu to use has_sysrq
2019-12-18 15:05:09 +01:00
vt8500_serial.c
tty/serial: Migrate vt8500_serial to use has_sysrq
2019-12-18 15:05:09 +01:00
xilinx_uartps.c
tty: serial: xilinx_uartps: Supply description for missing member 'cts_override'
2020-11-06 10:54:05 +01:00
zs.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
zs.h
…