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linux-stable/drivers/tty/serial
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Maciej W. Rozycki 9906890c89 serial: 8250: Let drivers request full 16550A feature probing 
A SERIAL_8250_16550A_VARIANTS configuration option has been recently
defined that lets one request the 8250 driver not to probe for 16550A
device features so as to reduce the driver's device startup time in
virtual machines.

Some actual hardware devices require these features to have been fully
determined however for their driver to work correctly, so define a flag
to let drivers request full 16550A feature probing on a device-by-device
basis if required regardless of the SERIAL_8250_16550A_VARIANTS option
setting chosen.

Fixes: dc56ecb81a ("serial: 8250: Support disabling mdelay-filled probes of 16550A variants")
Cc: stable@vger.kernel.org # v5.6+
Reported-by: Anders Blomdell <anders.blomdell@control.lth.se>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209202357520.41633@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-09-22 16:28:47 +02:00
..
8250 serial: 8250: Let drivers request full 16550A feature probing 2022-09-22 16:28:47 +02:00
cpm_uart tty: serial: cpm_uart: remove unused cpm_uart_nr declaration 2022-09-22 16:10:44 +02:00
jsm drivers: serial: jsm: fix some leaks in probe 2022-09-22 16:11:43 +02:00
21285.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
Kconfig tty: serial: fsl_lpuart: adjust SERIAL_FSL_LPUART_CONSOLE config dependency 2022-08-30 14:14:27 +02:00
Makefile serial: remove VR41XX serial driver 2022-07-16 08:16:01 +02:00
altera_jtaguart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
altera_uart.c tty: serial: altera_uart_{r,t}x_chars() need only uart_port 2022-09-22 16:14:08 +02:00
amba-pl010.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
amba-pl011.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
apbuart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
apbuart.h
…
ar933x_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
arc_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
atmel_serial.c Merge 6.0-rc4 into tty-next 2022-09-05 07:59:28 +02:00
atmel_serial.h
…
bcm63xx_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
clps711x.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
digicolor-usart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
dz.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
dz.h
…
earlycon-arm-semihost.c serial: make uart_console_write->putchar()'s character an unsigned char 2022-03-03 15:06:31 +01:00
earlycon-riscv-sbi.c serial: make uart_console_write->putchar()'s character an unsigned char 2022-03-03 15:06:31 +01:00
earlycon.c tty: move from strlcpy with unused retval to strscpy 2022-08-30 14:21:59 +02:00
fsl_linflexuart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
fsl_lpuart.c Merge 6.0-rc4 into tty-next 2022-09-05 07:59:28 +02:00
icom.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
imx.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
imx_earlycon.c serial: make uart_console_write->putchar()'s character an unsigned char 2022-03-03 15:06:31 +01:00
ip22zilog.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
ip22zilog.h
…
kgdb_nmi.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
kgdboc.c serial: kgdboc: Fix typo in comment 2022-06-27 14:37:09 +02:00
lantiq.c tty: serial: extract lqasc_tx_ready() from lqasc_tx_chars() 2022-09-22 16:14:08 +02:00
liteuart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
lpc32xx_hs.c tty: serial: extract tx_ready() from __serial_lpc32xx_tx() 2022-09-22 16:14:08 +02:00
max310x.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
max3100.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
mcf.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
men_z135_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
meson_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
milbeaut_usio.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
mpc52xx_uart.c tty: serial: switch mpc52xx_uart_int_{r,t}x_chars() to bool 2022-09-22 16:14:08 +02:00
mps2-uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
msm_serial.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
mux.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
mvebu-uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
mxs-auart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
omap-serial.c tty: serial: extract serial_omap_put_char() from transmit_chars() 2022-09-22 16:14:08 +02:00
owl-uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
pch_uart.c serial: pch_uart: CIRC_CNT_TO_END() is enough 2022-08-30 14:23:05 +02:00
pic32_uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
pmac_zilog.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
pmac_zilog.h serial: pmac_zilog: remove unused uart_pmac_port::termios_cache 2022-05-19 18:23:19 +02:00
pxa.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
qcom_geni_serial.c tty: serial: qcom-geni-serial: Replace hardcoded icc flags with macros. 2022-09-08 08:19:24 +02:00
rda-uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
rp2.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sa1100.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
samsung_tty.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sb1250-duart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sc16is7xx.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sccnxp.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
serial-tegra.c serial: tegra: Remove custom frame size calculation 2022-08-30 14:28:33 +02:00
serial_core.c tty: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
serial_mctrl_gpio.c Documentation: serial: move GPIO kernel-doc to the functions 2022-07-28 10:37:42 +02:00
serial_mctrl_gpio.h serial: mctrl_gpio: add a new API to enable / disable wake_irq 2022-02-08 11:07:16 +01:00
serial_txx9.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sh-sci.c serial: sh-sci: tail is already on valid range 2022-08-30 14:23:05 +02:00
sh-sci.h serial: sh-sci: Add support for RZ/G2L SoC 2021-06-04 15:12:40 +02:00
sifive.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sprd_serial.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
st-asc.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
stm32-usart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
stm32-usart.h serial: stm32: make info structs static to avoid sparse warnings 2022-07-28 10:35:23 +02:00
suncore.c
…
sunhv.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sunplus-uart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sunsab.c serial: sunsab: Remove frame size calculation dead-code 2022-08-30 14:28:33 +02:00
sunsab.h
…
sunsu.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sunzilog.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
sunzilog.h
…
tegra-tcu.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
timbuart.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
timbuart.h
…
uartlite.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
ucc_uart.c serial: ucc_uart: Remove custom frame size calculation 2022-08-30 14:28:33 +02:00
vt8500_serial.c tty: serial: move and cleanup vt8500_tx_empty() 2022-09-22 16:14:07 +02:00
xilinx_uartps.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
zs.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
zs.h
…