AuxXxilium/linux_dsm_epyc7002
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c14b65feac
linux_dsm_epyc7002/drivers/tty/serial
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Andy Shevchenko c14b65feac serial: 8250_dw: Revert "Improve clock rate setting" 
The commit

  de9e33bdfa ("serial: 8250_dw: Improve clock rate setting")

obviously tries to cure symptoms, and not a root cause.

The root cause is the non-flexible rate calculation inside the
corresponding clock driver. What we need is to provide maximum UART
divisor value to the clock driver to allow it do the job transparently
to the caller.

Since from the initial commit message I have got no clue which clock
driver actually needs to be amended, I leave this exercise to the people
who know better the case.

Moreover, it seems [1] the fix introduced a regression. And possible
even one more [2].

Taking above, revert the commit de9e33bdfa for now.

[1]: https://www.spinics.net/lists/linux-serial/msg28872.html
[2]: https://github.com/Dunedan/mbp-2016-linux/issues/29#issuecomment-357583782

Fixes: de9e33bdfa ("serial: 8250_dw: Improve clock rate setting")
Cc: stable <stable@vger.kernel.org> # 4.15
Cc: Ed Blake <ed.blake@sondrel.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-22 14:13:40 +01:00
..
8250 serial: 8250_dw: Revert "Improve clock rate setting" 2018-01-22 14:13:40 +01:00
cpm_uart TTY/Serial patches for 4.15-rc1 2017-11-13 21:05:31 -08:00
jsm tty: serial: jsm: Add one check against NULL pointer dereference 2018-01-09 16:37:03 +01:00
21285.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
altera_jtaguart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
altera_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
amba-pl010.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
amba-pl011.c serial: pl011: Use cached copy of IMSC register 2017-11-28 15:35:51 +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: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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 tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
arc_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
atmel_serial.c serial: Make retrieval of rs485 properties platform-agnostic 2017-11-28 16:04:57 +01:00
atmel_serial.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
bcm63xx_uart.c MIPS changes for 4.15 2017-11-15 11:36:08 -08:00
bfin_sport_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
bfin_sport_uart.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
bfin_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
clps711x.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
crisv10.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
crisv10.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
digicolor-usart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
dz.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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-arm-semihost.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
earlycon.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
efm32-uart.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
etraxfs-uart.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fsl_lpuart.c serial: fsl_lpuart: Support common rs485 binding for RTS polarity 2017-11-28 16:05:20 +01:00
icom.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
icom.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
ifx6x60.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ifx6x60.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
imx.c serial: imx: Only wakeup via RTSDEN bit if the system has RTS/CTS 2018-01-09 16:45:17 +01:00
ioc3_serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
ioc4_serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
ip22zilog.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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 tty: serial: sh-sci: Add default for number of ports for compile-testing 2017-12-18 10:28:31 +01:00
kgdb_nmi.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
kgdboc.c Modules updates for v4.15 2017-11-15 13:46:33 -08:00
lantiq.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
lpc32xx_hs.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
m32r_sio_reg.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
m32r_sio.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
max310x.c gpio: serial: max310x: Support open-drain configuration for GPIOs 2018-01-09 19:36:51 +01:00
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 tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
meson_uart.c tty: serial: meson: fix typo in the "stop bit" register definition 2017-11-28 15:32:33 +01:00
mpc52xx_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
mps2-uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
mpsc.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
msm_serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
mux.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
mvebu-uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
mxs-auart.c tty: serial: mxs-auart: fix error handling in mxs_auart_probe 2017-12-15 20:27:44 +01:00
netx-serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
omap-serial.c tty: omap-serial: Fix initial on-boot RTS GPIO level 2018-01-09 16:45:17 +01:00
owl-uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
pch_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
pic32_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
pic32_uart.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
pmac_zilog.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +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 treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
pxa.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
rp2.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sa1100.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
samsung.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
samsung.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sb1250-duart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sc16is7xx.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sccnxp.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial_core.c serial: core: Make uart_parse_options take const char* argument 2018-01-09 16:46:26 +01:00
serial_ks8695.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial_mctrl_gpio.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial_mctrl_gpio.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial_txx9.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
serial-tegra.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sh-sci.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
sh-sci.h TTY/Serial patches for 4.15-rc1 2017-11-13 21:05:31 -08:00
sirfsoc_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sirfsoc_uart.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
sn_console.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
sprd_serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
st-asc.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
stm32-usart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
stm32-usart.h serial: stm32: fix name conflict with 8250 2017-12-15 20:27:43 +01:00
suncore.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
sunhv.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
sunsab.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +01:00
sunzilog.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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
tilegx.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
timbuart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
timbuart.h tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
uartlite.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
ucc_uart.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
vr41xx_siu.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
vt8500_serial.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
xilinx_uartps.c tty: serial: Remove redundant license text 2017-11-08 13:08:12 +01:00
zs.c tty: add SPDX identifiers to all remaining files in drivers/tty/ 2017-11-08 13:08:12 +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