Sherry Sun 3b939a5579 tty: serial: fsl_lpuart: avoid idle preamble pending if CTS is enabled ... commit 74cb7e0355fae9641f825afa389d3fba3b617714 upstream. If the remote uart device is not connected or not enabled after booting up, the CTS line is high by default. At this time, if we enable the flow control when opening the device(for example, using “stty -F /dev/ttyLP4 crtscts” command), there will be a pending idle preamble(first writing 0 and then writing 1 to UARTCTRL_TE will queue an idle preamble) that cannot be sent out, resulting in the uart port fail to close(waiting for TX empty), so the user space stty will have to wait for a long time or forever. This is an LPUART IP bug(idle preamble has higher priority than CTS), here add a workaround patch to enable TX CTS after enabling UARTCTRL_TE, so that the idle preamble does not get stuck due to CTS is deasserted. Fixes: 380c966c093e ("tty: serial: fsl_lpuart: add 32-bit register interface support") Cc: stable <stable@kernel.org> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Link: https://lore.kernel.org/r/20240305015706.1050769-1-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-11-19 09:22:39 +01:00
..
accessibility	speakup: Fix 8bit characters from direct synth	2024-11-19 09:22:34 +01:00
acpi	ACPI: scan: Fix device check notification handling	2024-11-19 08:44:47 +01:00
amba
android	binder: signal epoll threads of self-work	2024-11-18 12:13:30 +01:00
ata	ahci: asm1064: asm1166: don't limit reported ports	2024-11-19 09:22:37 +01:00
atm	atm: idt77252: fix a memleak in open_card_ubr0	2024-11-18 12:13:24 +01:00
auxdisplay
base	PM: sleep: wakeirq: fix wake irq warning in system suspend	2024-11-19 09:22:17 +01:00
battery
bcma
block	aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts	2024-11-19 08:44:37 +01:00
bluetooth	Bluetooth: qca: Set both WIDEBAND_SPEECH and LE_STATES quirks for QCA2066	2024-11-18 12:13:17 +01:00
bts
bus	bus: tegra-aconnect: Update dependency to ARCH_TEGRA	2024-11-19 08:44:45 +01:00
cdrom
char	hwrng: core - Fix page fault dead lock on mmap-ed hwrng	2024-11-18 12:12:55 +01:00
clk	clk: qcom: mmcc-msm8974: fix terminating of frequency table arrays	2024-11-19 09:22:17 +01:00
clocksource	clocksource/drivers/timer-atmel-tcb: Fix initialization on SAM9 hardware	2024-11-18 11:43:12 +01:00
connector
counter
cpufreq	cpufreq: brcmstb-avs-cpufreq: fix up "add check for cpufreq_cpu_get's return value"	2024-11-19 09:22:38 +01:00
cpuidle
crypto	crypto: qat - resolve race condition during AER recovery	2024-11-19 09:22:15 +01:00
dax
dca
devfreq	PM / devfreq: Synchronize devfreq_monitor_[start/stop]	2024-11-18 12:13:09 +01:00
dio
dma	dmaengine: tegra210-adma: Update dependency to ARCH_TEGRA	2024-11-19 08:44:51 +01:00
dma-buf
edac	EDAC/thunderx: Fix possible out-of-bounds string access	2024-11-18 12:12:19 +01:00
eisa
extcon
fingerprint
firewire	firewire: core: use long bus reset on gap count error	2024-11-19 08:44:36 +01:00
firmware	efi/capsule-loader: fix incorrect allocation size	2024-11-18 23:18:29 +01:00
fpga
fsi
gnss
gpio	gpio: fix resource unwinding order in error path	2024-11-18 23:18:30 +01:00
gpu	drm/amd/display: Fix noise issue on HDMI AV mute	2024-11-19 09:22:37 +01:00
greybus
gud
hid	HID: lenovo: Add middleclick_workaround sysfs knob for cptkbd	2024-11-19 08:44:51 +01:00
hsi
hv	Drivers: hv: vmbus: Drop error message when 'No request id available'	2024-11-18 23:19:53 +01:00
hwmon	hwmon: (amc6821) add of_match table	2024-11-19 09:22:33 +01:00
hwspinlock
hwtracing	coresight: etm4x: Fix width of CCITMIN field	2024-11-18 12:12:19 +01:00
i2c	i2c: i801: Fix block process call transactions	2024-11-18 12:13:29 +01:00
i3c	i3c: master: cdns: Update maximum prescaler value for i2c clock	2024-11-18 12:13:19 +01:00
ide
idle
ifconn
iio	iio: accel: bma400: Fix a compilation problem	2024-11-18 12:13:31 +01:00
infiniband	RDMA/device: Fix a race between mad_client and cm_client init	2024-11-19 08:44:57 +01:00
input	Input: gpio_keys_polled - suppress deferred probe error for gpio	2024-11-19 08:44:36 +01:00
interconnect	interconnect: Treat xlate() returning NULL node as an error	2024-11-18 12:12:00 +01:00
iommu	iommu/vt-d: Don't issue ATS Invalidation request when device is disconnected	2024-11-19 08:44:48 +01:00
ipack
irqchip	irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable	2024-11-18 22:25:34 +01:00
isdn
kperfmon
kq/mesh
leds	leds: sgm3140: Add missing timer cleanup and flash gpio control	2024-11-19 08:44:56 +01:00
lightnvm
macintosh
mailbox
mcb	mcb: fix error handling for different scenarios when parsing	2024-11-18 11:43:25 +01:00
md	dm snapshot: fix lockup in dm_exception_table_exit	2024-11-19 09:22:37 +01:00
media	media: xc4000: Fix atomicity violation in xc4000_get_frequency	2024-11-19 09:22:15 +01:00
memory
memstick
message
mfd	mfd: altera-sysmgr: Call of_node_put() only when of_parse_phandle() takes a ref	2024-11-19 08:44:54 +01:00
misc	misc: fastrpc: Mark all sessions as invalid in cb_remove	2024-11-18 12:13:30 +01:00
mmc	mmc: core: Fix switch on gp3 partition	2024-11-19 09:22:33 +01:00
most
mtd	mtd: rawnand: meson: fix scrambling mode value in command macro	2024-11-19 09:22:16 +01:00
muic
mux
net	vxge: remove unnecessary cast in kfree()	2024-11-19 09:22:37 +01:00
nfc
ntb
nubus
nvdimm	nd_btt: Make BTT lanes preemptible	2024-11-18 11:43:03 +01:00
nvme	nvmet-fc: abort command when there is no binding	2024-11-18 22:25:33 +01:00
nvmem	nvmem: meson-efuse: fix function pointer type mismatch	2024-11-19 09:22:34 +01:00
of	of: property: fix typo in io-channels	2024-11-18 12:13:33 +01:00
opp	OPP: debugfs: Fix warning around icc_get_name()	2024-11-19 08:44:49 +01:00
oprofile
parisc
parport	parport: parport_serial: Add Brainboxes device IDs and geometry	2024-11-18 12:12:19 +01:00
pci	PCI: dwc: endpoint: Fix advertised resizable BAR size	2024-11-19 09:22:35 +01:00
pcmcia	pcmcia: ds: fix possible name leak in error path in pcmcia_device_add()	2024-11-18 11:43:06 +01:00
perf
phy	phy: tegra: xusb: Add API to retrieve the port number of phy	2024-11-19 09:22:34 +01:00
pinctrl	pinctrl: mediatek: Drop bogus slew rate register range for MT8192	2024-11-19 08:44:52 +01:00
platform	platform/x86: touchscreen_dmi: Allow partial (prefix) matches for ACPI names	2024-11-18 23:18:27 +01:00
pnp	PNP: ACPI: fix fortify warning	2024-11-18 12:13:09 +01:00
power	power: supply: bq27xxx-i2c: Do not free non existing IRQ	2024-11-18 23:18:29 +01:00
powercap
pps
ps3
ptp	ptp: annotate data-race around q->head and q->tail	2024-11-18 11:43:19 +01:00
pwm	pwm: jz4740: Don't use dev_err_probe() in .request()	2024-11-18 12:12:47 +01:00
rapidio
ras
regulator	regulator: pwm-regulator: Add validity checks in continuous .get_voltage	2024-11-18 22:25:33 +01:00
remoteproc	remoteproc: stm32: fix phys_addr_t format string	2024-11-19 08:45:00 +01:00
reset	reset: hisilicon: hi6220: fix Wvoid-pointer-to-enum-cast warning	2024-11-18 12:12:16 +01:00
rpmsg	rpmsg: virtio: Free driver_override when rpmsg_remove()	2024-11-18 12:12:56 +01:00
rtc	rtc: mt6397: select IRQ_DOMAIN instead of depending on it	2024-11-19 08:44:58 +01:00
s390	s390/zcrypt: fix reference counting on zcrypt card objects	2024-11-19 09:22:35 +01:00
samsung
sbus
scsi	block: introduce zone_write_granularity limit	2024-11-19 09:22:16 +01:00
sensorhub
sensors
sfi
sh
siox
slimbus	slimbus: core: Remove usage of the deprecated ida_simple_xx() API	2024-11-19 09:22:34 +01:00
soc	soc: fsl: qbman: Use raw spinlock for cgr_lock	2024-11-19 09:22:35 +01:00
soundwire	soundwire: stream: fix NULL pointer dereference for multi_link	2024-11-18 12:11:57 +01:00
spi	spi: spi-mt65xx: Fix NULL pointer access in interrupt handler	2024-11-19 08:45:00 +01:00
spmi
spu_verify
ssb
staging	comedi: comedi_test: Prevent timers rescheduling during deletion	2024-11-19 09:22:38 +01:00
sti
target	scsi: target: core: Add TMF to tmr_list handling	2024-11-18 22:25:32 +01:00
tc
tee	tee: optee: Fix supplicant based device enumeration	2024-11-18 12:11:39 +01:00
thermal	thermal: core: prevent potential string overflow	2024-11-18 11:42:50 +01:00
thunderbolt
tty	tty: serial: fsl_lpuart: avoid idle preamble pending if CTS is enabled	2024-11-19 09:22:39 +01:00
uh
uio	uio: Fix use-after-free in uio_open	2024-11-18 12:12:19 +01:00
usb	usb: port: Don't try to peer unused USB ports based on location	2024-11-19 09:22:39 +01:00
vdpa
vfio	vfio/platform: Disable virqfds on cleanup	2024-11-19 09:22:35 +01:00
vhost	vhost: use kzalloc() instead of kmalloc() followed by memset()	2024-11-18 12:13:27 +01:00
vibrator
video	backlight: lp8788: Fully initialize backlight_properties during probe	2024-11-19 08:44:56 +01:00
virt
virtio
vision
vision3
visorbus
vlynq
vme
w1
watchdog	watchdog: stm32_iwdg: initialize default timeout	2024-11-19 08:44:57 +01:00
xen	xen/gntdev: Fix the abuse of underlying struct page in DMA-buf import	2024-11-18 12:13:19 +01:00
zorro
Kconfig
Kconfig.variant1
Makefile
Makefile.variant1