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Filename Latest commit message Latest commit date
Mathias Nyman 47e41b4dab xhci: turn off port power in shutdown
commit 83810f84ecf11dfc5a9414a8b762c3501b328185 upstream.

If ports are not turned off in shutdown then runtime suspended
self-powered USB devices may survive in U3 link state over S5.

During subsequent boot, if firmware sends an IPC command to program
the port in DISCONNECT state, it will time out, causing significant
delay in the boot time.

Turning off roothub port power is also recommended in xhci
specification 4.19.4 "Port Power" in the additional note.

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20220623111945.1557702-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-29 08:58:47 +02:00
arch s390/cpumf: Handle events cycles and instructions identical 2022-06-29 08:58:47 +02:00
block
certs
crypto
Documentation iio: adc: vf610: fix conversion mode sysfs node name 2022-06-29 08:58:47 +02:00
drivers xhci: turn off port power in shutdown 2022-06-29 08:58:47 +02:00
fs afs: Fix dynamic root getattr 2022-06-29 08:58:46 +02:00
include random: quiet urandom warning ratelimit suppression message 2022-06-29 08:58:45 +02:00
init
ipc
kernel
lib
LICENSES
mm
net Revert "net/tls: fix tls_sk_proto_close executed repeatedly" 2022-06-29 08:58:47 +02:00
samples
scripts
security
sound ALSA: hda/realtek: Add quirk for Clevo PD70PNT 2022-06-29 08:58:44 +02:00
tools
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
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COPYING
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Makefile Linux 5.4.201 2022-06-25 12:44:36 +02:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.