linux/Documentation
Darwin Dingel bdb48e4c7d dt-bindings: serial: 8250: Add rate limit for serial port input overruns
When a serial port continuously experiences input overrun from
(1) continuous receive characters from remote and or (2) hardware
issues, its interrupt handler can preempt other tasks especially
when the system is busy (ie. boot up period). This can cause other
tasks to get starved of processing time from the CPU.

When this dts binding is enabled and input overrun on the serial port
is detected, serial port receive will be throttled to give some breathing
room for processing other tasks. Value provided will be in milliseconds.

&serial0{
	overrun-throttle-ms = <500>;
};

Signed-off-by: Darwin Dingel <darwin.dingel@alliedtelesis.co.nz>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-17 16:02:57 +01:00
..
ABI net: dsa: Fix tagging attribute location 2018-11-30 17:17:39 -08:00
EDID
PCI pci-v4.20-changes 2018-10-25 06:50:48 -07:00
RCU This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
accelerators
accounting psi: cgroup support 2018-10-26 16:26:32 -07:00
acpi
admin-guide Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-12-01 12:35:48 -08:00
aoe
arm ARM: SoC device tree updates for 4.20 2018-10-29 15:05:20 -07:00
arm64 arm64: Add workaround for Cortex-A76 erratum 1286807 2018-11-29 16:45:45 +00:00
auxdisplay
backlight
block
blockdev This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
bpf
bus-devices
cdrom
cgroup-v1 Merge branch 'for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 2018-10-25 17:15:46 -07:00
cma
connector
console
core-api XArray: Fix Documentation 2018-11-05 16:38:10 -05:00
cpu-freq Documentation: cpu-freq: Frequencies aren't always sorted 2018-11-07 13:29:04 +01:00
cpuidle
crypto KEYS: Implement PKCS#8 RSA Private Key parser [ver #2] 2018-10-26 09:30:46 +01:00
dev-tools
device-mapper This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
devicetree dt-bindings: serial: 8250: Add rate limit for serial port input overruns 2018-12-17 16:02:57 +01:00
doc-guide
driver-api Char/Misc driver patches for 4.20-rc1 2018-10-26 09:11:43 -07:00
driver-model
early-userspace
extcon
fault-injection
fb This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
features
filesystems This pull request contains updates for UBIFS: 2018-11-04 14:46:04 -08:00
firmware_class
fmc
fpga
gpio
gpu Merge branch 'drm-next-4.20' of git://people.freedesktop.org/~agd5f/linux into drm-next 2018-09-21 09:52:53 +10:00
hid
hwmon hwmon: (ina3221) Read channel input source info from DT 2018-10-10 20:37:13 -07:00
i2c i2c: add i2c bus driver for NVIDIA GPU 2018-11-09 17:46:43 +01:00
ia64
ide
iio
infiniband
input Revert "Input: Add the `REL_WHEEL_HI_RES` event code" 2018-11-22 08:57:44 +01:00
ioctl drm pull for 4.20-rc1 2018-10-28 17:49:53 -07:00
isdn
kbuild kbuild: remove unused cc-fullversion variable 2018-11-02 00:15:26 +09:00
kdump
kernel-hacking
laptops platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
leds
lightnvm
livepatch
locking This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
m68k
maintainer
md
media media: mediactl docs: Fix licensing message 2018-11-27 13:52:46 -05:00
memory-devices
mic
mips
misc-devices
mmc
mtd
namespaces
netlabel
networking rxrpc: Fix life check 2018-11-15 11:35:40 -08:00
nfc
nios2
nvdimm
nvmem Documentation: nvmem: document cell tables and lookup entries 2018-09-28 15:14:54 +02:00
openrisc
parisc
pcmcia
perf
phy
platform
power This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
powerpc
pps
process The Compiler Attributes series 2018-11-01 18:34:46 -07:00
pti
ptp
rapidio
riscv
s390 KVM updates for v4.20 2018-10-25 17:57:35 -07:00
scheduler This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
scsi SCSI misc on 20181024 2018-10-25 07:40:30 -07:00
security Merge branch 'next-keys2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2018-11-01 15:23:59 -07:00
serial TTY/Serial patches for 4.20-rc1 2018-10-29 10:42:20 -07:00
sh
sound ALSA: doc: Brush up the old writing-an-alsa-driver 2018-10-18 10:30:01 +02:00
sparc
sphinx
sphinx-static docs: improve readability for people with poorer eyesight 2018-10-07 09:16:50 -06:00
spi
sysctl New gcc plugin: stackleak 2018-11-01 11:46:27 -07:00
target
thermal
timers
trace The biggest change here is the updates to kprobes 2018-10-30 09:49:56 -07:00
translations
usb
userspace-api x86/speculation: Add prctl() control for indirect branch speculation 2018-11-28 11:57:13 +01:00
virtual KVM updates for v4.20 2018-10-25 17:57:35 -07:00
vm slub: extend slub debug to handle multiple slabs 2018-10-26 16:25:19 -07:00
w1
watchdog documentation: watchdog: add documentation for armada-37xx-wdt 2018-10-13 15:19:40 +02:00
wimax
x86 x86/boot: Mostly revert commit ae7e1238e6 ("Add ACPI RSDP address to setup_header") 2018-11-20 09:43:10 +01:00
xilinx Documentation: xilinx: Add documentation for eemi APIs 2018-10-09 13:26:05 +02:00
xtensa
.gitignore
Changes
CodingStyle
DMA-API-HOWTO.txt
DMA-API.txt
DMA-ISA-LPC.txt
DMA-attributes.txt
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
Intel-IOMMU.txt
Makefile
SAK.txt
SM501.txt
SubmittingPatches
atomic_bitops.txt
atomic_t.txt
bt8xxgpio.txt
btmrvl.txt
bus-virt-phys-mapping.txt
clearing-warn-once.txt
conf.py This is a fairly typical cycle for documentation. There's some welcome 2018-10-24 18:01:11 +01:00
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
digsig.txt
docutils.conf
dontdiff
efi-stub.txt
eisa.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcc-plugins.txt
highuid.txt
hw_random.txt
hwspinlock.txt
index.rst
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt
irqflags-tracing.txt
isa.txt
isapnp.txt
kernel-per-CPU-kthreads.txt
kobject.txt
kprobes.txt
kref.txt
ldm.txt
lockup-watchdogs.txt
logo.gif
logo.txt
lsm.txt
lzo.txt
mailbox.txt
memory-barriers.txt locking/memory-barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() 2018-10-02 10:28:05 +02:00
men-chameleon-bus.txt
nommu-mmap.txt
ntb.txt
numastat.txt
padata.txt
parport-lowlevel.txt
percpu-rw-semaphore.txt
phy.txt
pi-futex.txt
pnp.txt
preempt-locking.txt Documentation: preempt-locking: Use better example 2018-10-12 11:35:47 -06:00
pwm.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rtc.txt
sgi-ioc4.txt
siphash.txt
smsc_ece1099.txt
speculation.txt
static-keys.txt
svga.txt
switchtec.txt NTB: switchtec_ntb: Update switchtec documentation with prerequisites for NTB 2018-10-11 11:28:53 -05:00
sync_file.txt
tee.txt
this_cpu_ops.txt
unaligned-memory-access.txt
vfio-mediated-device.txt
vfio.txt
video-output.txt
xillybus.txt
xz.txt
zorro.txt