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linux-stable/drivers/tty/serial
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Douglas Anderson c5e7467d92 serial: 8250_early: Support kgdboc_earlycon 
Implement the read() function in the early console driver.  With
recent kgdb patches this allows you to use kgdb to debug fairly early
into the system boot.

We only bother implementing this if polling is enabled since kgdb
can't be enabled without that.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lore.kernel.org/r/20200507130644.v4.11.I8f668556c244776523320a95b09373a86eda11b7@changeid
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
2020-06-02 15:15:46 +01:00
..
8250
serial: 8250_early: Support kgdboc_earlycon
2020-06-02 15:15:46 +01:00
cpm_uart
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
jsm
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
21285.c
tty: serial: 21285: stop using the unused[] variable from struct uart_port
2019-12-19 20:10:28 +01:00
altera_jtaguart.c
tty: serial: Remove redundant license text
2017-11-08 13:08:12 +01:00
altera_uart.c
serial: altera: set RRDY flag also without irq
2018-02-28 13:30:09 +01:00
amba-pl010.c
tty/serial: Migrate amba-pl01* to use has_sysrq
2019-12-18 15:04:44 +01:00
amba-pl011.c
tty/serial: Migrate amba-pl01* to use has_sysrq
2019-12-18 15:04:44 +01:00
amba-pl011.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
apbuart.c
tty/serial: Migrate apbuart to use has_sysrq
2019-12-18 15:04:44 +01:00
apbuart.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ar933x_uart.c
serial: ar933x_uart: add RS485 support
2020-03-06 13:26:26 +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
tty/serial: atmel: Use uart_console() helper
2020-03-12 10:00:22 +01:00
atmel_serial.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
bcm63xx_uart.c
tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart
2020-04-23 15:48:53 +02:00
clps711x.c
tty/serial: Migrate clps711x to use has_sysrq
2019-12-18 15:04:46 +01:00
digicolor-usart.c
tty/serial: digicolor: Fix digicolor-usart already registered warning
2019-06-10 19:08:31 +02:00
dz.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
dz.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
earlycon-arm-semihost.c
tty: serial: Remove redundant license text
2017-11-08 13:08:12 +01:00
earlycon-riscv-sbi.c
tty/serial: use uart_console_write in the RISC-V SBL early console
2019-01-23 15:41:50 -08:00
earlycon.c
serial: earlycon: prefer EARLYCON_DECLARE() variant
2020-03-07 09:52:01 +01:00
efm32-uart.c
tty: serial: efm32: fix spelling mistake "reserverd" -> "reserved"
2020-02-19 11:38:58 +01:00
fsl_linflexuart.c
tty/serial: Migrate fsl_linflexuart to use has_sysrq
2019-12-18 15:04:48 +01:00
fsl_lpuart.c
tty: serial: fsl_lpuart: fix return value checking
2020-03-26 15:34:05 +01:00
icom.c
tty: serial: Remove call to memset after pci_alloc_consistent
2019-09-04 12:43:44 +02:00
icom.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
ifx6x60.c
tty: serial: ifx6x60: Convert to GPIO descriptors
2020-03-12 10:03:54 +01:00
ifx6x60.h
tty: serial: ifx6x60: Convert to GPIO descriptors
2020-03-12 10:03:54 +01:00
imx.c
tty: imx serial: Implement support for reversing TX and RX polarity
2020-03-06 13:26:26 +01:00
ip22zilog.c
tty/serial: Migrate ip22zilog to use has_sysrq
2019-12-18 15:04:50 +01:00
ip22zilog.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
Kconfig
Char/Misc driver patches for 5.7-rc1
2020-04-03 13:22:40 -07:00
kgdb_nmi.c
tty/serial: kgdb_nmi: use true,false for bool variable
2020-01-14 14:34:04 +01:00
kgdboc.c
serial: kgdboc: Allow earlycon initialization to be deferred
2020-06-02 15:15:45 +01:00
lantiq.c
tty: serial: lantiq: Drop GPIO include
2020-03-06 13:16:16 +01:00
lpc32xx_hs.c
TTY/Serial driver changes for 5.4-rc1
2019-09-18 10:50:47 -07:00
Makefile
{tty: serial, nand: onenand}: samsung: rename to fix build warning
2019-11-18 18:49:11 +01:00
max310x.c
serial: max310x: turn off transmitter before activating AutoCTS or auto transmitter flow control
2019-09-05 09:57:44 +02:00
max3100.c
treewide: setup_timer() -> timer_setup()
2017-11-21 15:57:07 -08:00
mcf.c
tty: serial: Remove redundant license text
2017-11-08 13:08:12 +01:00
men_z135_uart.c
drivers: mcb: use symbol namespaces
2019-11-03 19:54:53 +01:00
meson_uart.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
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
serial: mps2-uart: Add parentheses around conditional in mps2_uart_shutdown
2019-01-31 19:34:10 +01:00
msm_serial.c
tty: serial: msm_serial: RX SW/FIFO mode fallback
2020-01-14 14:07:51 +01:00
mux.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
mvebu-uart.c
tty:serial:mvebu-uart:fix a wrong return
2020-03-05 21:26:34 +01:00
mxs-auart.c
tty/serial: Migrate mxs-auart to use has_sysrq
2019-12-18 15:04:53 +01:00
omap-serial.c
TTY/Serial patches for 5.7-rc1
2020-03-31 16:18:55 -07:00
owl-uart.c
tty: serial: owl: add "much needed" clk_prepare_enable()
2020-04-23 15:46:30 +02:00
pch_uart.c
tty: serial: pch_uart: Use scnprintf() for avoiding potential buffer overflow
2020-03-18 12:59:29 +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
tty/serial: Migrate pmac_zilog to use has_sysrq
2019-12-18 15:04:56 +01:00
pmac_zilog.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pnx8xxx_uart.c
tty/serial: Migrate pnx8xxx_uart to use has_sysrq
2019-12-18 15:04:57 +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: Support kgdboc_earlycon
2020-06-02 15:15:46 +01:00
rda-uart.c
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
rp2.c
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
sa1100.c
tty/serial: Migrate sa1100 to use has_sysrq
2019-12-18 15:04:59 +01:00
samsung_tty.c
serial: samsung: Rename Exynos to lowercase
2020-01-06 20:22:33 +01:00
sb1250-duart.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
sc16is7xx.c
serial: sc16is7xx: Replace zero-length array with flexible-array member
2020-02-13 12:00:23 -08:00
sccnxp.c
tty/serial: Migrate sccnxp to use has_sysrq
2019-12-18 15:05:00 +01:00
serial_core.c
serial: core: Allow detach and attach serial device for console
2020-03-17 15:57:59 +01:00
serial_mctrl_gpio.c
serial: mctrl_gpio: Check for NULL pointer
2019-10-07 13:21:54 +02:00
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
tty/serial: Migrate serial_txx9 to use has_sysrq
2019-12-18 15:05:01 +01:00
serial-tegra.c
tty: serial: tegra: Handle RX transfer in PIO mode if DMA wasn't started
2020-02-10 12:32:13 -08:00
sh-sci.c
serial: sh-sci: Make sure status register SCxSR is read in correct sequence
2020-04-16 16:16:52 +02:00
sh-sci.h
serial: sh-sci: Support for HSCIF RX sampling point adjustment
2018-04-23 10:08:18 +02:00
sifive.c
tty: serial: Add CONSOLE_POLL support to SiFive UART
2020-03-18 11:07:13 +01:00
sirfsoc_uart.c
serial: sirf: Fix out-of-bounds access through DT alias
2018-02-28 15:30:00 +01:00
sirfsoc_uart.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
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
tty/serial: Migrate stm32-usart to use has_sysrq
2019-12-18 15:05:04 +01:00
stm32-usart.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
suncore.c
tty: Use of_node_name_{eq,prefix} for node name comparisons
2018-12-17 16:12:17 +01:00
sunhv.c
serial: sunhv: Initialize lock for non-registered console
2020-04-16 16:16:52 +02:00
sunsab.c
tty/serial: Migrate sunsab to use has_sysrq
2019-12-18 15:05:05 +01:00
sunsab.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sunsu.c
tty/serial: Migrate sunsu to use has_sysrq
2019-12-18 15:05:06 +01:00
sunzilog.c
tty/serial: Migrate sunzilog to use has_sysrq
2019-12-18 15:05:08 +01:00
sunzilog.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
tegra-tcu.c
serial: Add Tegra Combined UART driver
2019-01-30 09:31:31 +01:00
timbuart.c
tty: serial: Remove redundant license text
2017-11-08 13:08:12 +01:00
timbuart.h
tty: serial: Use the correct style for SPDX License Identifier
2020-03-07 09:52:01 +01:00
uartlite.c
Revert "serial-uartlite: Move the uart register"
2019-11-14 06:29:08 +08:00
ucc_uart.c
ARM: SoC-related driver updates
2020-02-08 14:04:19 -08:00
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
Revert "serial: uartps: Register own uart console and driver structures"
2020-04-16 16:00:48 +02:00
zs.c
TTY/Serial driver updates for 5.6-rc1
2020-01-29 10:13:27 -08:00
zs.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00