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linux/drivers/tty/serial
History
Jiaqing Zhao ed60e0031c Revert "8250: add support for ASIX devices with a FIFO bug" 
commit a82d62f708 upstream.

This reverts commit eb26dfe8aa.

Commit eb26dfe8aa ("8250: add support for ASIX devices with a FIFO
bug") merged on Jul 13, 2012 adds a quirk for PCI_VENDOR_ID_ASIX
(0x9710). But that ID is the same as PCI_VENDOR_ID_NETMOS defined in
1f8b061050c7 ("[PATCH] Netmos parallel/serial/combo support") merged
on Mar 28, 2005. In pci_serial_quirks array, the NetMos entry always
takes precedence over the ASIX entry even since it was initially
merged, code in that commit is always unreachable.

In my tests, adding the FIFO workaround to pci_netmos_init() makes no
difference, and the vendor driver also does not have such workaround.
Given that the code was never used for over a decade, it's safe to
revert it.

Also, the real PCI_VENDOR_ID_ASIX should be 0x125b, which is used on
their newer AX99100 PCIe serial controllers released on 2016. The FIFO
workaround should not be intended for these newer controllers, and it
was never implemented in vendor driver.

Fixes: eb26dfe8aa ("8250: add support for ASIX devices with a FIFO bug")
Cc: stable <stable@kernel.org>
Signed-off-by: Jiaqing Zhao <jiaqing.zhao@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230619155743.827859-1-jiaqing.zhao@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-07-23 13:54:08 +02:00
..
8250 Revert "8250: add support for ASIX devices with a FIFO bug" 2023-07-23 13:54:08 +02:00
cpm_uart serial: cpm_uart: Fix a COMPILE_TEST dependency 2023-05-30 12:25:47 +01:00
jsm drivers: serial: jsm: fix some leaks in probe 2022-09-22 16:11:43 +02:00
21285.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
altera_jtaguart.c tty: serial: altera_jtaguart: remove struct altera_jtaguart 2022-11-22 17:51:42 +01:00
altera_uart.c serial: altera_uart: fix locking in polling mode 2022-11-23 09:38:42 +01:00
amba-pl010.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
amba-pl011.c serial: amba-pl011: fix high priority character transmission in rs486 mode 2023-01-19 14:54:58 +01:00
apbuart.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +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: Use uart_xmit_advance() 2022-11-03 03:35:41 +01:00
arc_uart.c serial: arc_uart: fix of_iomap leak in arc_serial_probe 2023-05-13 19:55:46 +09:00
atmel_serial.c serial: atmel: don't enable IRQs prematurely 2023-07-23 13:54:05 +02:00
atmel_serial.h tty: serial: atmel: Use FIELD_PREP/FIELD_GET 2022-09-22 16:32:25 +02:00
bcm63xx_uart.c serial: bcm63xx-uart: add polling support 2023-03-29 10:54:23 +02:00
clps711x.c serial: clps711x: Use uart_xmit_advance() 2022-11-03 03:35:41 +01:00
digicolor-usart.c serial: digicolor: Use uart_xmit_advance() 2022-11-03 03:35:41 +01:00
dz.c serial: dz: Use uart_xmit_advance() 2022-11-03 03:35:40 +01:00
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-riscv-sbi.c serial: make uart_console_write->putchar()'s character an unsigned char 2022-03-03 15:06:31 +01:00
earlycon-semihost.c serial: Rename earlycon semihost driver 2023-01-19 14:58:19 +01:00
earlycon.c earlycon: Let users set the clock frequency 2023-01-19 14:56:44 +01:00
fsl_linflexuart.c serial: linflexuart: Use uart_xmit_advance() 2022-11-03 03:35:41 +01:00
fsl_lpuart.c tty: serial: fsl_lpuart: add earlycon for imx8ulp platform 2023-07-19 16:37:02 +02:00
icom.c serial: Make ->set_termios() old ktermios const 2022-08-30 14:22:35 +02:00
imx.c tty: serial: imx: fix rs485 rx after tx 2023-07-23 13:54:05 +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: ip22zilog: Use uart_xmit_advance() 2022-11-03 03:35:41 +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 serial: cpm_uart: Fix a COMPILE_TEST dependency 2023-05-30 12:25:47 +01:00
kgdb_nmi.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
kgdboc.c tty: serial: kgdboc: fix mutex locking order for configure_kgdboc() 2023-01-16 16:44:53 +01:00
lantiq.c serial: lantiq: add missing interrupt ack 2023-06-06 14:45:34 +02:00
liteuart.c serial: liteuart: Remove a copy of UART id in private structure 2023-01-31 10:59:48 +01:00
lpc32xx_hs.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
Makefile serial: Rename earlycon semihost driver 2023-01-19 14:58:19 +01:00
max310x.c serial: max310x: fix IO data corruption in batched operations 2023-04-20 13:46:13 +02:00
max3100.c serial: Make uart_handle_cts_change() status param bool active 2023-01-19 16:04:35 +01:00
mcf.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
men_z135_uart.c serial: men_z135_uart: Use uart_xmit_advance() 2022-11-03 03:35:41 +01:00
meson_uart.c tty: serial: meson: Add a new compatible string for the G12A SoC 2023-03-09 17:21:02 +01:00
milbeaut_usio.c serial: milbeaut_usio: Use uart_xmit_advance() 2022-11-03 03:35:42 +01:00
mpc52xx_uart.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
mps2-uart.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
msm_serial.c serial: msm: add lock annotation to msm_set_baud_rate() 2023-01-19 15:53:09 +01:00
mux.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
mvebu-uart.c serial: mvebu-uart: Use uart_xmit_advance() 2022-11-03 03:35:42 +01:00
mxs-auart.c serial: Use of_property_read_bool() for boolean properties 2023-03-16 13:02:14 +01:00
omap-serial.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
owl-uart.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
pch_uart.c tty: pcn_uart: fix memory leak with using debugfs_lookup() 2023-02-08 13:09:55 +01:00
pic32_uart.c serial: pic32: Add checks for devm_clk_get() in pic32_uart_probe() 2023-01-19 16:02:23 +01:00
pmac_zilog.c serial: pmac_zilog: Use uart_xmit_advance() 2022-11-03 03:35:42 +01:00
pmac_zilog.h serial: pmac_zilog: remove unused uart_pmac_port::termios_cache 2022-05-19 18:23:19 +02:00
pxa.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
qcom_geni_serial.c serial: qcom-geni: fix enabling deactivated interrupt 2023-05-13 20:00:54 +09:00
rda-uart.c serial: rda: Use uart_xmit_advance() 2022-11-03 03:35:42 +01:00
rp2.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
sa1100.c tty: serial: use uart_port_tx() helper 2022-11-03 03:32:40 +01:00
samsung_tty.c tty: serial: samsung_tty: Fix a memory leak in s3c24xx_serial_getclk() when iterating clk 2023-07-23 13:54:05 +02:00
sb1250-duart.c serial: sb1250-duart: clean up after SIBYTE_BCM1x55 removal 2023-03-29 10:54:39 +02:00
sc16is7xx.c serial: sc16is7xx: Convert to i2c's .probe_new() 2023-03-09 21:58:53 +01:00
sccnxp.c serial: sccnxp: Use devm_clk_get_enabled() helper 2023-01-19 15:51:28 +01:00
serial-tegra.c serial: tegra: Add missing clk_disable_unprepare() in tegra_uart_hw_init() 2023-01-19 15:54:01 +01:00
serial_core.c serial: core: lock port for start_rx() in uart_resume_port() 2023-07-19 16:36:32 +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 tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
sh-sci.c tty: serial: sh-sci: Fix end of transmission on SCI 2023-04-20 13:47:33 +02:00
sh-sci.h tty: serial: sh-sci: Add support for tx end interrupt handling 2023-04-20 13:47:33 +02:00
sifive.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
sprd_serial.c serial: sprd: Drop of_match_ptr for ID table 2023-03-16 13:02:17 +01:00
st-asc.c tty: serial: use uart_port_tx_limited() 2022-11-03 03:32:40 +01:00
stm32-usart.c serial: stm32: Re-assert RTS/DE GPIO in RS485 mode only if more data are transmitted 2023-03-09 17:16:11 +01:00
stm32-usart.h serial: stm32: Remove unused struct stm32_port txdone element 2023-03-09 17:16:11 +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 tty/serial: Make ->dcd_change()+uart_handle_dcd_change() status bool active 2023-01-19 16:04:35 +01:00
sunplus-uart.c serial: sunplus-uart: Use uart_xmit_advance() 2022-11-03 03:35:43 +01:00
sunsab.c serial: sunsab: Fix error handling in sunsab_init() 2022-11-23 09:38:50 +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 serial: sunsu: Use uart_xmit_advance() 2022-11-03 03:35:43 +01:00
sunzilog.c serial: Use of_property_present() for testing DT property presence 2023-03-16 13:02:11 +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 Merge 7e2cd21e02 ("Merge tag 'tty-6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty") into tty-next 2022-09-25 09:22:13 +02:00
timbuart.c serial: timbuart: Use uart_xmit_advance() 2022-11-03 03:35:43 +01:00
timbuart.h tty: serial: Use the correct style for SPDX License Identifier 2020-03-07 09:52:01 +01:00
uartlite.c serial: uartlite: Use uart_xmit_advance() 2022-11-03 03:35:43 +01:00
ucc_uart.c serial: ucc_uart: Use uart_circ_empty() 2023-03-29 10:53:57 +02:00
vt8500_serial.c serial: Fix a typo ("ignorning") 2022-11-09 13:03:12 +01:00
xilinx_uartps.c TTY/Serial driver changes for 6.2-rc1 2022-12-16 03:31:56 -08:00
zs.c serial: zs: Use uart_xmit_advance() 2022-11-03 03:35:43 +01:00
zs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00