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Mathias Nyman 30f9ad9fb3 xhci: Add a flag to disable USB3 lpm on a xhci root port level. 
commit 0522b9a165 upstream.

One USB3 roothub port may support link power management, while another
root port on the same xHC can't due to different retimers used for
the ports.

This is the case with Intel Alder Lake, and possible future platforms
where retimers used for USB4 ports cause too long exit latecy to
enable native USB3 lpm U1 and U2 states.

Add a flag in the xhci port structure to indicate if the port is
lpm_incapable, and check it while calculating exit latency.

Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230116142216.1141605-6-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-24 07:11:49 +01:00
arch arm64: cmpxchg_double*: hazard against entire exchange variable 2023-01-18 11:30:56 +01:00
block blk-mq: fix possible memleak when register 'hctx' failed 2023-01-18 11:30:37 +01:00
certs certs/blacklist_hashes.c: fix const confusion in certs blacklist 2022-06-25 11:49:16 +02:00
crypto crypto: tcrypt - Fix multibuffer skcipher speed test mem leak 2023-01-18 11:30:22 +01:00
Documentation docs: Fix the docs build with Sphinx 6.0 2023-01-18 11:30:51 +01:00
drivers xhci: Add a flag to disable USB3 lpm on a xhci root port level. 2023-01-24 07:11:49 +01:00
firmware Fix built-in early-load Intel microcode alignment 2020-01-23 08:21:29 +01:00
fs nilfs2: fix general protection fault in nilfs_btree_insert() 2023-01-24 07:11:49 +01:00
include ext4: fix reserved cluster accounting at delayed write time 2023-01-18 11:30:54 +01:00
init random: handle latent entropy and command line from random_init() 2022-06-25 11:49:11 +02:00
ipc ipc/sem: Fix dangling sem_array access in semtimedop race 2022-12-08 11:18:35 +01:00
kernel tracing: Fix infinite loop in tracing_read_pipe on overflowed print_trace_line 2023-01-18 11:30:43 +01:00
lib test_firmware: fix memory leak in test_firmware_init() 2023-01-18 11:30:26 +01:00
LICENSES LICENSES: Remove CC-BY-SA-4.0 license text 2018-10-18 11:28:50 +02:00
mm mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths 2023-01-18 11:29:59 +01:00
net net/ethtool/ioctl: return -EOPNOTSUPP if we have no phy stats 2023-01-24 07:11:49 +01:00
samples samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe() 2023-01-18 11:30:28 +01:00
scripts scripts/faddr2line: Fix regression in name resolution on ppc64le 2022-12-08 11:18:32 +01:00
security device_cgroup: Roll back to original exceptions after copy failure 2023-01-18 11:30:44 +01:00
sound ALSA: hda/hdmi: fix failures at PCM open on Intel ICL and later 2023-01-18 11:30:52 +01:00
tools kest.pl: Fix grub2 menu handling for rebooting 2023-01-18 11:30:53 +01:00
usr initramfs: restore default compression behavior 2020-04-13 10:44:59 +02:00
virt KVM: arm64: vgic: Fix exit condition in scan_its_table() 2022-11-03 23:52:24 +09:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
COPYING
CREDITS 9p: remove Ron Minnich from MAINTAINERS 2018-08-17 16:20:26 -07:00
Kbuild
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS MAINTAINERS: co-maintain random.c 2022-06-25 11:49:01 +02:00
Makefile Linux 4.19.270 2023-01-18 11:30:57 +01:00
README

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.
See Documentation/00-INDEX for a list of what is contained in each file.

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.