linux/drivers/tty/serial
Serge Semin c8dff3aa82 serial: 8250: Skip uninitialized TTY port baud rate update
It is erroneous to update the TTY port baud rate if it hasn't been
initialized yet, because in that case the TTY struct isn't set. So there
is no termios structure to get and re-calculate the baud if the current
baud can't be reached. Let's skip the baud rate update then until the port
is fully initialized.

Note the update UART clock method still sets the uartclk member with a new
ref clock value even if the port is turned off. The new UART ref clock
rate will be used later on the port starting up procedure.

Fixes: 868f3ee6e4 ("serial: 8250: Add 8250 port clock update method")
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Link: https://lore.kernel.org/r/20200923161950.6237-3-Sergey.Semin@baikalelectronics.ru
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-30 14:52:42 +02:00
..
8250 serial: 8250: Skip uninitialized TTY port baud rate update 2020-09-30 14:52:42 +02:00
cpm_uart tty: serial: cpm_uart: Fix behaviour for non existing GPIOs 2020-06-27 13:50:51 +02:00
jsm tty: serial: Replace HTTP links with HTTPS ones 2020-07-21 20:04:54 +02:00
21285.c
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-pl011.c serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt 2020-09-30 14:31:04 +02:00
amba-pl011.h
apbuart.c
apbuart.h
ar933x_uart.c
arc_uart.c
atmel_serial.c Linux 5.9-rc3 2020-08-31 07:19:25 +02:00
atmel_serial.h
bcm63xx_uart.c
clps711x.c
digicolor-usart.c
dz.c
dz.h
earlycon-arm-semihost.c
earlycon-riscv-sbi.c
earlycon.c tty: serial: print earlycon info after match->setup 2020-09-16 13:16:20 +02:00
efm32-uart.c
fsl_linflexuart.c
fsl_lpuart.c tty: serial: fsl_lpuart: fix lpuart32_poll_get_char 2020-09-30 14:29:36 +02:00
icom.c tty: serial: icom: switch from 'pci_' to 'dma_' API 2020-09-04 18:07:20 +02:00
icom.h
ifx6x60.c tty: serial, fix kernel-doc 2020-08-18 13:51:18 +02:00
ifx6x60.h
imx.c tty: serial: imx: disable TXDC IRQ in imx_uart_shutdown() to avoid IRQ storm 2020-09-30 14:31:04 +02:00
imx_earlycon.c tty: serial: imx: add imx earlycon driver 2020-07-29 17:11:02 +02:00
ip22zilog.c
ip22zilog.h
Kconfig tty: serial: imx: fix link error with CONFIG_SERIAL_CORE_CONSOLE=n 2020-09-27 14:17:43 +02:00
kgdb_nmi.c kdb: Switch to use safer dbg_io_ops over console APIs 2020-06-26 15:40:16 +01:00
kgdboc.c Linux 5.8-rc6 2020-07-20 09:39:11 +02:00
lantiq.c
lpc32xx_hs.c
Makefile tty: serial: imx: add dependence and build for earlycon 2020-08-18 13:54:34 +02:00
max310x.c
max3100.c
mcf.c
men_z135_uart.c tty: serial, fix kernel-doc 2020-08-18 13:51:18 +02:00
meson_uart.c
milbeaut_usio.c
mpc52xx_uart.c
mps2-uart.c
msm_serial.c serial: msm_serial: add sparse context annotation 2020-07-24 10:44:27 +02:00
mux.c
mvebu-uart.c serial: mvebu-uart: fix unused variable warning 2020-09-29 12:56:39 +02:00
mxs-auart.c serial: mxs-auart: add missed iounmap() in probe failure and remove 2020-07-10 14:44:46 +02:00
omap-serial.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
owl-uart.c
pch_uart.c pch_uart: drop double zeroing 2020-09-27 14:17:43 +02:00
pic32_uart.c
pic32_uart.h
pmac_zilog.c serial: pmac_zilog: use for_each_child_of_node() macro 2020-09-16 13:20:09 +02:00
pmac_zilog.h
pnx8xxx_uart.c
pxa.c
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 serial: samsung: Removes the IRQ not found warning 2020-08-18 13:53:42 +02:00
sb1250-duart.c
sc16is7xx.c sc16is7xx: Set iobase to device index 2020-09-04 17:14:47 +02:00
sccnxp.c
serial-tegra.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
serial_core.c Merge 5.9.0-rc6 into tty-next 2020-09-21 09:23:55 +02:00
serial_mctrl_gpio.c
serial_mctrl_gpio.h
serial_txx9.c
sh-sci.c Revert "serial: sh-sci: Initialize spinlock for uart console" 2020-07-21 18:21:49 +02:00
sh-sci.h
sifive.c Revert "tty: serial: add missing spin_lock_init for SiFive serial console" 2020-07-21 18:21:49 +02:00
sirfsoc_uart.c
sirfsoc_uart.h
sprd_serial.c
st-asc.c
stm32-usart.c serial: stm32: Add RS485 RTS GPIO control again 2020-09-04 17:16:40 +02:00
stm32-usart.h
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
uartlite.c tty: serial: uartlite: Replace HTTP links with HTTPS ones 2020-07-21 20:04:54 +02:00
ucc_uart.c serial: ucc_uart: make qe_uart_set_mctrl() static 2020-09-16 13:14:58 +02:00
vr41xx_siu.c
vt8500_serial.c
xilinx_uartps.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
zs.c
zs.h