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33e321586e
linux/drivers
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Mathias Nyman 33e321586e xhci: Add grace period after xHC start to prevent premature runtime suspend. 
After xHC controller is started, either in probe or resume, it can take
a while before any of the connected usb devices are visible to the roothub
due to link training.

It's possible xhci driver loads, sees no acivity and suspends the host
before the USB device is visible.

In one testcase with a hotplugged xHC controller the host finally detected
the connected USB device and generated a wake 500ms after host initial
start.

If hosts didn't suspend the device duringe training it probablty wouldn't
take up to 500ms to detect it, but looking at specs reveal USB3 link
training has a couple long timeout values, such as 120ms
RxDetectQuietTimeout, and 360ms PollingLFPSTimeout.

So Add a 500ms grace period that keeps polling the roothub for 500ms after
start, preventing runtime suspend until USB devices are detected.

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220825150840.132216-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-25 17:48:30 +02:00
..
accessibility TTY / Serial driver changes for 6.0-rc1 2022-08-08 11:31:40 -07:00
acpi More ACPI updates for 5.20-rc1 2022-08-11 13:26:09 -07:00
amba ARM: 9220/1: amba: Remove deferred device addition 2022-07-28 15:09:23 +01:00
android - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
ata powerpc updates for 6.0 2022-08-06 16:38:17 -07:00
atm atm: idt77252: fix use-after-free bugs caused by tst_timer 2022-08-08 20:51:59 -07:00
auxdisplay
base Driver core / kernfs changes for 6.0-rc1 2022-08-04 11:31:20 -07:00
bcma
block xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
bluetooth SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
bus SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
cdrom
char s390 updates for 5.20 merge window 2022-08-06 17:05:21 -07:00
clk The clk core gains a new set of APIs that allow drivers to both acquire clks 2022-08-04 18:40:08 -07:00
clocksource RISC-V: Add Sstc extension support 2022-08-11 14:41:52 -07:00
comedi pci-v5.20-changes 2022-08-04 19:30:35 -07:00
connector
counter
cpufreq More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
cpuidle More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
crypto This update includes the following changes: 2022-08-02 17:45:14 -07:00
cxl cxl/hdm: Fix skip allocations vs multiple pmem allocations 2022-08-05 16:11:38 -07:00
dax
dca
devfreq More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
dio
dma pci-v5.20-changes 2022-08-04 19:30:35 -07:00
dma-buf drm for 5.20/6.0 2022-08-03 19:52:08 -07:00
edac powerpc updates for 6.0 2022-08-06 16:38:17 -07:00
eisa
extcon
firewire firewire: net: Make use of get_unaligned_be48(), put_unaligned_be48() 2022-07-28 22:21:54 -07:00
firmware RISC-V Patches for the 5.20 Merge Window, Part 1 2022-08-06 15:04:48 -07:00
fpga
fsi
gnss
gpio gpio: updates for v6.0-rc1 2022-08-04 18:34:05 -07:00
gpu drm fixes for 6.0-rc1 2022-08-11 19:12:15 -07:00
greybus
hid platform-drivers-x86 for v6.0-1 2022-08-04 18:19:14 -07:00
hsi
hte
hv
hwmon hwmon: (nct6775) Fix platform driver suspend regression 2022-08-10 06:37:01 -07:00
hwspinlock
hwtracing asm-generic: updates for 6.0 2022-08-05 10:07:23 -07:00
i2c i2c: move core from strlcpy to strscpy 2022-08-11 23:02:52 +02:00
i3c
idle Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
iio
infiniband dma-mapping updates 2022-08-06 10:56:45 -07:00
input Input updates for 5.20 (6.0) merge window: 2022-08-11 09:23:08 -07:00
interconnect
iommu Bitmap patches for v6.0-rc1 2022-08-07 17:52:35 -07:00
ipack
irqchip RISC-V Patches for the 5.20 Merge Window, Part 1 2022-08-06 15:04:48 -07:00
isdn
leds LED updates for 5.20: new driver for bcm63138, is31fl319x updates, 2022-08-08 11:36:21 -07:00
macintosh
mailbox - mtk: use rx_callback instead of cmdq_task_cb. 2022-08-08 10:19:40 -07:00
mcb
md - A few fixes for the DM verity and bufio changes from the 6.0 merge. 2022-08-11 19:46:48 -07:00
media More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
memory More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
memstick MMC core: 2022-08-04 19:41:09 -07:00
message
mfd - Core Frameworks 2022-08-06 10:25:16 -07:00
misc - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
mmc MMC core: 2022-08-04 19:41:09 -07:00
most
mtd MTD core changes: 2022-08-05 14:13:45 -07:00
mux
net virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
nfc
ntb NTB: epf: Allow more flexibility in the memory BAR map method 2022-08-09 17:54:03 -04:00
nubus
nvdimm virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
nvme block-6.0-2022-08-12 2022-08-13 13:37:36 -07:00
nvmem SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
of RISC-V Patches for the 5.20 Merge Window, Part 2 2022-08-12 18:39:43 -07:00
opp OPP updates for 5.20-rc1 2022-08-03 17:49:38 +02:00
parisc parisc architecture fixes and updates for kernel v5.20-rc1: 2022-08-05 09:58:58 -07:00
parport
pci Fix of heap data and clang warnings, support for a new Intel NTB device, 2022-08-13 14:00:45 -07:00
pcmcia
peci
perf perf: riscv_pmu{,_sbi}: Miscallenous improvement & fixes 2022-08-12 07:17:38 -07:00
phy pci-v5.20-changes 2022-08-04 19:30:35 -07:00
pinctrl Pin control bulk changes for v6.0: 2022-08-10 11:01:44 -07:00
platform virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
pnp
power power supply and reset changes for the v6.0 series 2022-08-12 09:37:33 -07:00
powercap Power management updates for 5.20-rc1 2022-08-02 11:17:00 -07:00
pps
ps3
ptp SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
pwm SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
rapidio
ras
regulator chrome platform changes for 5.20 2022-08-04 18:13:19 -07:00
remoteproc virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
reset ARM: SoC: late updates for 6.0 2022-08-05 10:02:33 -07:00
rpmsg
rtc rtc: spear: set range max 2022-08-09 00:56:41 +02:00
s390 SCSI misc on 20220813 2022-08-13 13:41:48 -07:00
sbus
scsi SCSI misc on 20220813 2022-08-13 13:41:48 -07:00
sh
siox
slimbus
soc More power management updates for 5.20-rc1 2022-08-08 14:29:00 -07:00
soundwire sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
spi powerpc updates for 6.0 2022-08-06 16:38:17 -07:00
spmi
ssb
staging Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00
target SCSI misc on 20220813 2022-08-13 13:41:48 -07:00
tc
tee
thermal More thermal control updates for 5.20-rc1 2022-08-08 14:23:37 -07:00
thunderbolt thunderbolt: Check router generation before connecting xHCI 2022-08-18 11:55:52 +03:00
tty TTY / Serial driver changes for 6.0-rc1 2022-08-08 11:31:40 -07:00
ufs SCSI misc on 20220813 2022-08-13 13:41:48 -07:00
uio
usb xhci: Add grace period after xHC start to prevent premature runtime suspend. 2022-08-25 17:48:30 +02:00
vdpa vdpa/mlx5: Fix possible uninitialized return value 2022-08-11 10:00:36 -04:00
vfio vfio: Move vfio.c to vfio_main.c 2022-08-08 14:33:41 -06:00
vhost virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
video TTY / Serial driver changes for 6.0-rc1 2022-08-08 11:31:40 -07:00
virt Char / Misc driver changes for 6.0-rc1 2022-08-04 11:05:48 -07:00
virtio virtio: fatures, fixes 2022-08-12 09:50:34 -07:00
vlynq
w1
watchdog linux-watchdog 5.20-rc1 tag 2022-08-08 15:04:04 -07:00
xen xen: branch for v6.0-rc1b 2022-08-14 09:28:54 -07:00
zorro
Kconfig
Makefile Staging driver patches for 6.0-rc1 2022-08-04 12:01:42 -07:00