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Matthias Schiffer e828e56684 serial: 8250_omap: remove wait loop from Errata i202 workaround 
We were occasionally seeing the "Errata i202: timedout" on an AM335x
board when repeatedly opening and closing a UART connected to an active
sender. As new input may arrive at any time, it is possible to miss the
"RX FIFO empty" condition, forcing the loop to wait until it times out.

Nothing in the i202 Advisory states that such a wait is even necessary;
other FIFO clear functions like serial8250_clear_fifos() do not wait
either. For this reason, it seems safe to remove the wait, fixing the
mentioned issue.

Fixes: 61929cf0169d ("tty: serial: Add 8250-core based omap driver")
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/20221013112339.2540767-1-matthias.schiffer@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-03 03:44:35 +01:00
..
accessibility
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acpi
ACPI and device properties fixes for 6.1-rc3
2022-10-28 16:48:29 -07:00
amba
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android
Scheduler changes for v6.1:
2022-10-10 09:10:28 -07:00
ata
ata: ahci_qoriq: Fix compilation warning
2022-10-18 08:02:14 +09:00
atm
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auxdisplay
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base
ACPI and device properties fixes for 6.1-rc3
2022-10-28 16:48:29 -07:00
bcma
Interrupt subsystem updates:
2022-10-12 10:23:24 -07:00
block
block-6.1-2022-10-28
2022-10-29 18:06:52 -07:00
bluetooth
…
bus
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
cdrom
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char
random: use arch_get_random*_early() in random_init()
2022-10-29 00:24:03 +02:00
clk
This is the final part of the clk patches for this merge window.
2022-10-16 11:08:19 -07:00
clocksource
A boring time, timekeeping, timers update:
2022-10-10 10:16:00 -07:00
comedi
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connector
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counter
counter: 104-quad-8: Fix race getting function mode and direction
2022-10-23 20:39:26 -04:00
cpufreq
cpufreq: intel_pstate: hybrid: Use known scaling factor for P-cores
2022-10-25 15:09:23 +02:00
cpuidle
RISC-V Patches for the 6.1 Merge Window, Part 1
2022-10-09 13:24:01 -07:00
crypto
This update includes the following changes:
2022-10-10 13:04:25 -07:00
cxl
…
dax
libnvdimm for 6.1
2022-10-14 18:41:41 -07:00
dca
…
devfreq
PM / devfreq: rockchip-dfi: Fix an error message
2022-09-26 03:59:43 +09:00
dio
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dma
treewide: use get_random_bytes() when possible
2022-10-11 17:42:58 -06:00
dma-buf
whack-a-mole: cropped up open-coded file_inode() uses...
2022-10-06 17:22:11 -07:00
edac
Merge patch series "Use composable cache instead of L2 cache"
2022-10-13 11:07:13 -07:00
eisa
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extcon
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
firewire
…
firmware
efi: runtime: Don't assume virtual mappings are missing if VA == PA == 0
2022-10-21 11:09:41 +02:00
fpga
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
fsi
fsi: core: Check error number after calling ida_simple_get
2022-09-28 21:10:57 +09:30
gnss
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gpio
gpio: tegra: Convert to immutable irq chip
2022-10-20 13:47:54 +02:00
gpu
drm-misc-fixes for v6.1-rc3:
2022-10-28 13:00:15 +10:00
greybus
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hid
for-linus-2022102101
2022-10-21 17:41:57 -07:00
hsi
…
hte
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hv
hyperv-next for 6.1
2022-10-10 13:59:01 -07:00
hwmon
- Use the correct CPU capability clearing function on the error path in
2022-10-23 10:01:34 -07:00
hwspinlock
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hwtracing
coresight: cti: Fix hang in cti_disable_hw()
2022-10-25 19:08:07 +02:00
i2c
i2c: mlxbf: depend on ACPI; clean away ifdeffage
2022-10-21 07:59:35 +02:00
i3c
i3c: master: Remove the wrong place of reattach.
2022-10-12 23:45:29 +02:00
idle
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iio
iio: bmc150-accel-core: Fix unsafe buffer attributes
2022-10-17 08:51:26 +01:00
infiniband
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
input
Input updates for 6.1 merge window:
2022-10-11 10:53:25 -07:00
interconnect
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iommu
iommu/vt-d: Clean up si_domain in the init_dmars() error path
2022-10-21 10:49:35 +02:00
ipack
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
irqchip
Interrupt subsystem updates:
2022-10-12 10:23:24 -07:00
isdn
mISDN: hfcpci: Fix use-after-free bug in hfcpci_softirq
2022-10-09 19:11:54 +01:00
leds
leds: simatic-ipc-leds-gpio: fix incorrect LED to GPIO mapping
2022-10-24 11:32:10 +02:00
macintosh
powerpc updates for 6.1
2022-10-09 14:05:15 -07:00
mailbox
mailbox: qcom-ipcc: flag IRQ NO_THREAD
2022-10-05 21:51:58 -05:00
mcb
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md
dm clone: Fix typo in block_device format specifier
2022-10-18 17:17:48 -04:00
media
media: vivid: set num_in/outputs to 0 if not supported
2022-10-25 16:43:34 +01:00
memory
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memstick
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message
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mfd
Revert "mfd: syscon: Remove repetition of the regmap_get_val_endian()"
2022-10-23 12:04:56 -07:00
misc
misc: sgi-gru: use explicitly signed char
2022-10-25 19:12:10 +02:00
mmc
mmc: sdhci_am654: 'select', not 'depends' REGMAP_MMIO
2022-10-26 11:48:03 +02:00
most
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mtd
mtd: parsers: bcm47xxpart: Fix halfblock reads
2022-10-18 11:20:12 +02:00
mux
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net
net: enetc: survive memory pressure without crashing
2022-10-27 11:32:25 -07:00
nfc
nfc: virtual_ncidev: Fix memory leak in virtual_nci_send()
2022-10-20 21:13:04 -07:00
ntb
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nubus
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nvdimm
libnvdimm for 6.1
2022-10-14 18:41:41 -07:00
nvme
block-6.1-2022-10-28
2022-10-29 18:06:52 -07:00
nvmem
nvmem: u-boot-env: fix crc32 casting type
2022-09-24 14:56:37 +02:00
of
Devicetree updates for v6.1:
2022-10-10 13:13:51 -07:00
opp
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parisc
parisc architecture fixes and updates for kernel v6.1-rc1:
2022-10-14 12:10:01 -07:00
parport
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pci
Revert "PCI: tegra: Use PCI_CONF1_EXT_ADDRESS() macro"
2022-10-17 12:11:09 -05:00
pcmcia
pcmcia: remove AT91RM9200 Compact Flash driver
2022-09-27 08:12:16 +02:00
peci
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perf
arm64 fixes:
2022-10-14 12:38:03 -07:00
phy
pci-v6.1-changes
2022-10-11 11:08:18 -07:00
pinctrl
pinctrl: ocelot: Fix incorrect trigger of the interrupt.
2022-10-18 10:42:10 +02:00
platform
LoongArch fixes for v6.1-rc3
2022-10-30 09:44:06 -07:00
pnp
Merge branches 'acpi-apei', 'acpi-wakeup', 'acpi-reboot' and 'acpi-thermal'
2022-10-10 18:11:11 +02:00
power
power supply and reset changes for the v6.1 series
2022-10-07 11:48:30 -07:00
powercap
Scheduler changes for v6.1:
2022-10-10 09:10:28 -07:00
pps
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ps3
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ptp
] ptp: ocp: remove symlink for second GNSS
2022-10-10 08:37:24 +01:00
pwm
pwm: Changes for v6.1-rc1
2022-10-07 11:32:10 -07:00
rapidio
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ras
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regulator
- Core Frameworks
2022-10-07 11:24:20 -07:00
remoteproc
remoteproc: virtio: Fix warning on bindings by removing the of_match_table
2022-10-05 09:20:44 -06:00
reset
Here's the main clk pull request for this merge window. We have some
2022-10-08 10:06:48 -07:00
rpmsg
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rtc
rtc: cmos: fix build on non-ACPI platforms
2022-10-18 22:36:54 +02:00
s390
s390/vfio-ap: Fix memory allocation for mdev_types array
2022-10-26 14:47:31 +02:00
sbus
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scsi
SCSI fixes on 20221028
2022-10-29 18:12:45 -07:00
sh
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siox
…
slimbus
slimbus: qcom-ngd: Add error handling in of_qcom_slim_ngd_register
2022-09-24 14:53:06 +02:00
soc
Merge patch series "Use composable cache instead of L2 cache"
2022-10-13 11:07:13 -07:00
soundwire
soundwire updates for 6.1-rc1
2022-10-07 16:13:55 -07:00
spi
spi: Fixes for v6.1
2022-10-26 17:38:46 -07:00
spmi
spmi: pmic-arb: increase SPMI transaction timeout delay
2022-09-30 14:33:23 +02:00
ssb
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staging
media fixes for v6.1-rc2
2022-10-22 15:30:15 -07:00
target
Merge branch '6.1/scsi-queue' into 6.1/scsi-fixes
2022-10-21 01:10:34 +00:00
tc
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tee
- Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
2022-10-10 17:53:04 -07:00
thermal
thermal: intel_powerclamp: Use first online CPU as control_cpu
2022-10-15 19:33:57 +02:00
thunderbolt
treewide: use get_random_u32() when possible
2022-10-11 17:42:58 -06:00
tty
serial: 8250_omap: remove wait loop from Errata i202 workaround
2022-11-03 03:44:35 +01:00
ufs
scsi: ufs: core: Fix typo in comment
2022-10-22 03:29:32 +00:00
uio
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usb
fbdev fixes for kernel 6.1-rc3:
2022-10-30 11:31:14 -07:00
vdpa
virtio: fixes, features
2022-10-10 14:02:53 -07:00
vfio
VFIO updates for v6.1-rc1
2022-10-12 14:46:48 -07:00
vhost
virtio: fixes, features
2022-10-10 14:02:53 -07:00
video
fbdev fixes for kernel 6.1-rc3:
2022-10-30 11:31:14 -07:00
virt
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
virtio
virtio_pci: use irq to detect interrupt support
2022-10-13 09:33:03 -04:00
vlynq
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w1
Char/Misc and other driver changes for 6.1-rc1
2022-10-08 08:56:37 -07:00
watchdog
linux-watchdog 6.1-rc2 tag
2022-10-21 12:25:39 -07:00
xen
xen: branch for v6.1-rc2
2022-10-21 14:43:09 -07:00
zorro
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Kconfig
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Makefile
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