Serge Semin b90e8d5d28 usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one ... commit fca3f138105727c3a22edda32d02f91ce1bf11c9 upstream Originally the procedure of the ULPI transaction finish detection has been developed as a simple busy-loop with just decrementing counter and no delays. It's wrong since on different systems the loop will take a different time to complete. So if the system bus and CPU are fast enough to overtake the ULPI bus and the companion PHY reaction, then we'll get to take a false timeout error. Fix this by converting the busy-loop procedure to take the standard bus speed, address value and the registers access mode into account for the busy-loop delay calculation. Here is the way the fix works. It's known that the ULPI bus is clocked with 60MHz signal. In accordance with [1] the ULPI bus protocol is created so to spend 5 and 6 clock periods for immediate register write and read operations respectively, and 6 and 7 clock periods - for the extended register writes and reads. Based on that we can easily pre-calculate the time which will be needed for the controller to perform a requested IO operation. Note we'll still preserve the attempts counter in case if the DWC USB3 controller has got some internals delays. [1] UTMI+ Low Pin Interface (ULPI) Specification, Revision 1.1, October 20, 2004, pp. 30 - 36. Fixes: 88bc9d194f ("usb: dwc3: add ULPI interface support") Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Link: https://lore.kernel.org/r/20201210085008.13264-3-Sergey.Semin@baikalelectronics.ru Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-02-17 10:35:18 +01:00
..
accessibility
acpi	ACPI: thermal: Do not call acpi_thermal_check() directly	2021-02-07 15:35:47 +01:00
amba
android	binder: add flag to clear buffer on txn complete	2020-12-30 11:51:35 +01:00
ata	ata: sata_nv: Fix retrieving of active qcs	2020-11-05 11:43:12 +01:00
atm	atm: idt77252: call pci_disable_device() on error path	2021-01-12 20:16:11 +01:00
auxdisplay
base	driver core: Extend device_is_dependent()	2021-01-27 11:47:51 +01:00
bcma
block	xen-blkfront: allow discard-* nodes to be optional	2021-02-03 23:25:58 +01:00
bluetooth	Bluetooth: revert: hci_h5: close serdev device and free hu in h5_close	2021-01-12 20:16:17 +01:00
bus	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()	2020-12-30 11:51:23 +01:00
cdrom
char	virtio: virtio_console: fix DMA memory allocation for rproc serial	2020-11-18 19:20:29 +01:00
clk	clk: sunxi-ng: mp: fix parent rate change flag check	2021-02-17 10:35:18 +01:00
clocksource	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI	2020-12-30 11:51:19 +01:00
connector
counter
cpufreq	cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()	2021-01-17 14:05:35 +01:00
cpuidle	cpuidle: Fixup IRQ state	2020-09-09 19:12:21 +02:00
crypto	chtls: Fix potential resource leak	2021-02-13 13:52:55 +01:00
dax	device-dax/core: Fix memory leak when rmmod dax.ko	2020-12-30 11:51:46 +01:00
dca
devfreq	PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out	2020-10-01 13:17:14 +02:00
dio
dma	dmaengine: xilinx_dma: fix mixed_enum_type coverity warning	2021-01-17 14:05:36 +01:00
dma-buf	dmabuf: fix use-after-free of dmabuf's file->f_inode	2021-01-12 20:16:23 +01:00
edac	EDAC/amd64: Fix PCI component registration	2020-12-30 11:51:36 +01:00
eisa
extcon	extcon: max77693: Fix modalias string	2020-12-30 11:51:24 +01:00
firewire
firmware	firmware: imx: select SOC_BUS to fix firmware build	2021-02-03 23:25:59 +01:00
fpga	fpga: dfl: fix bug in port reset handshake	2020-07-29 10:18:31 +02:00
fsi
gnss
gpio	gpio: ep93xx: Fix single irqchip with multi gpiochips	2021-02-17 10:35:14 +01:00
gpu	drm/sun4i: dw-hdmi: Fix max. frequency for H6	2021-02-17 10:35:18 +01:00
greybus
hid	HID: wacom: Correct NULL dereference on AES pen proximity	2021-01-30 13:54:10 +01:00
hsi	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()	2020-12-30 11:51:13 +01:00
hv	Drivers: hv: vmbus: Allow cleanup of VMBUS_CONNECT_CPU if disconnected	2020-11-24 13:29:23 +01:00
hwmon	hwmon: (pwm-fan) Ensure that calculation doesn't discard big period values	2021-01-19 18:26:15 +01:00
hwspinlock
hwtracing	stm class: Fix module init return on allocation failure	2021-01-27 11:47:50 +01:00
i2c	i2c: stm32f7: fix configuration of the digital filter	2021-02-17 10:35:18 +01:00
i3c	i3c master: fix missing destroy_workqueue() on error in i3c_master_register	2021-01-06 14:48:40 +01:00
ide	scsi: ide: Do not set the RQF_PREEMPT flag for sense requests	2021-01-12 20:16:09 +01:00
idle
iio	iio: ad5504: Fix setting power-down state	2021-01-27 11:47:48 +01:00
infiniband	RDMA/cxgb4: Fix the reported max_recv_sge value	2021-02-03 23:25:59 +01:00
input	Input: xpad - sync supported devices with fork on GitHub	2021-02-10 09:25:32 +01:00
interconnect	interconnect: qcom: qcs404: Remove GPU and display RPM IDs	2020-12-16 10:56:56 +01:00
iommu	iommu/vt-d: Do not use flush-queue when caching-mode is on	2021-02-10 09:25:32 +01:00
ipack
irqchip	irqchip/mips-cpu: Set IPI domain parent chip	2021-01-27 11:47:49 +01:00
isdn	misdn: dsp: select CONFIG_BITREVERSE	2021-01-19 18:26:15 +01:00
leds	leds: trigger: fix potential deadlock with libata	2021-02-03 23:25:58 +01:00
lightnvm	lightnvm: fix memory leak when submit fails	2021-01-27 11:47:53 +01:00
macintosh	macintosh/via-macii: Access autopoll_devs when inside lock	2020-08-19 08:16:15 +02:00
mailbox	mailbox: avoid timer start from callback	2020-10-29 09:57:53 +01:00
mcb
md	md: Set prev_flush_start and flush_bio in an atomic way	2021-02-10 09:25:32 +01:00
media	media: rc: ensure that uevent can be read directly after rc device register	2021-02-03 23:25:56 +01:00
memory	memory: emif: Remove bogus debugfs error handling	2020-11-05 11:43:21 +01:00
memstick	memstick: r592: Fix error return in r592_probe()	2020-12-30 11:51:18 +01:00
message	scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()	2020-11-05 11:43:25 +01:00
mfd	mfd: sprd: Add wakeup capability for PMIC IRQ	2020-11-18 19:20:26 +01:00
misc	lkdtm: don't move ctors to .rodata	2021-02-17 10:35:16 +01:00
mmc	mmc: core: Limit retries when analyse of SDIO tuples fails	2021-02-10 09:25:30 +01:00
mtd	Revert "mtd: spinand: Fix OOB read"	2021-01-09 13:44:54 +01:00
mux
net	net: hns3: add a check for queue_id in hclge_reset_vf_queue()	2021-02-17 10:35:17 +01:00
nfc	nfc: s3fwrn5: Release the nfc firmware	2020-12-30 11:51:26 +01:00
ntb	NTB: hw: amd: fix an issue about leak system resources	2020-10-29 09:58:00 +01:00
nubus
nvdimm	libnvdimm/dimm: Avoid race between probe and available_slots_show()	2021-02-10 09:25:30 +01:00
nvme	nvme-pci: ignore the subsysem NQN on Phison E16	2021-02-17 10:35:15 +01:00
nvmem	nvmem: core: fix possibly memleak when use nvmem_cell_info_to_nvmem_cell()	2020-10-29 09:57:42 +01:00
of	of/address: Fix of_node memory leak in of_dma_is_coherent	2020-11-18 19:20:28 +01:00
opp	opp: Reduce the size of critical section in _opp_table_kref_release()	2020-11-18 19:20:21 +01:00
oprofile
parisc	parisc: mask out enable and reserved bits from sba imask	2020-08-19 08:16:26 +02:00
parport
pci	PCI: Fix pci_slot_release() NULL pointer dereference	2020-12-30 11:51:47 +01:00
pcmcia
perf	drivers/perf: thunderx2_pmu: Fix memory resource error handling	2020-10-29 09:57:30 +01:00
phy	phy: cpcap-usb: Fix warning for missing regulator_disable	2021-02-07 15:35:48 +01:00
pinctrl	pinctrl: ingenic: Fix JZ4760 support	2021-01-27 11:47:52 +01:00
platform	platform/x86: hp-wmi: Disable tablet-mode reporting by default	2021-02-17 10:35:15 +01:00
pnp
power	power: supply: bq24190_charger: fix reference leak	2020-12-30 11:51:14 +01:00
powercap	powercap: restrict energy meter to root access	2020-11-10 21:13:20 +01:00
pps
ps3	powerpc/ps3: use dma_mapping_error()	2020-12-30 11:51:26 +01:00
ptp
pwm	pwm: lp3943: Dynamically allocate PWM chip base	2020-12-30 11:51:28 +01:00
rapidio	rapidio: fix the missed put_device() for rio_mport_add_riodev	2020-10-29 09:57:53 +01:00
ras
regulator	regulator: Fix lockdep warning resolving supplies	2021-02-13 13:52:56 +01:00
remoteproc	remoteproc: qcom: Fix potential NULL dereference in adsp_init_mmio()	2020-12-30 11:51:24 +01:00
reset
rpmsg	rpmsg: glink: Use complete_all for open states	2020-11-05 11:43:20 +01:00
rtc	rtc: pl031: fix resource leak in pl031_probe	2021-01-06 14:48:39 +01:00
s390	s390/vfio-ap: No need to disable IRQ after queue reset	2021-02-03 23:25:57 +01:00
sbus
scsi	scsi: ibmvfc: Set default timeout to avoid crash during migration	2021-02-07 15:35:48 +01:00
sfi
sh
siox
slimbus	slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI	2020-12-30 11:51:13 +01:00
soc	drivers: soc: atmel: add null entry at the end of at91_soc_allowed_list[]	2021-02-03 23:25:57 +01:00
soundwire	soundwire: bus: disable pm_runtime in sdw_slave_delete	2020-10-01 13:17:36 +02:00
spi	spi: cadence: cache reference clock rate during probe	2021-01-23 15:58:00 +01:00
spmi
ssb
staging	exfat: Month timestamp metadata accidentally incremented	2021-01-17 14:05:34 +01:00
target	scsi: target: Fix XCOPY NAA identifier lookup	2021-01-12 20:16:25 +01:00
tc
tee	tee: optee: replace might_sleep with cond_resched	2021-02-03 23:25:58 +01:00
thermal	thermal/drivers/cpufreq_cooling: Update cpufreq_state only if state has changed	2021-01-06 14:48:35 +01:00
thunderbolt	thunderbolt: Fix use-after-free in remove_unplugged_switch()	2020-12-11 13:23:29 +01:00
tty	serial: mvebu-uart: fix tx lost characters at power off	2021-01-27 11:47:50 +01:00
uio	uio: Fix use-after-free in uio_unregister_device()	2020-11-18 19:20:29 +01:00
usb	usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one	2021-02-17 10:35:18 +01:00
vfio	vfio iommu: Add dma available capability	2021-01-17 14:05:30 +01:00
vhost	vhost_net: fix ubuf refcount incorrectly when sendmsg fails	2021-01-12 20:16:16 +01:00
video	video: hyperv_fb: Fix the mmap() regression for v5.4.y and older	2021-01-12 20:16:17 +01:00
virt	drivers/virt/fsl_hypervisor: Fix error handling path	2020-10-29 09:57:38 +01:00
virtio	virtio_ring: Fix two use after free bugs	2020-12-30 11:51:29 +01:00
visorbus
vlynq
vme
w1	w1: mxc_w1: Fix timeout resolution problem leading to bus error	2020-11-05 11:43:25 +01:00
watchdog	watchdog: coh901327: add COMMON_CLK dependency	2020-12-30 11:51:28 +01:00
xen	arm/xen: Don't probe xenbus as part of an early initcall	2021-02-17 10:35:14 +01:00
zorro
Kconfig
Makefile