https://github.com/torvalds/linux
Revision ad87e03213b552a5c33d5e1e7a19a73768397010 authored by Alan Stern on 10 December 2015, 20:27:21 UTC, committed by Greg Kroah-Hartman on 11 December 2015, 23:40:51 UTC
Some USB device / host controller combinations seem to have problems
with Link Power Management.  For example, Steinar found that his xHCI
controller wouldn't handle bandwidth calculations correctly for two
video cards simultaneously when LPM was enabled, even though the bus
had plenty of bandwidth available.

This patch introduces a new quirk flag for devices that should remain
disabled for LPM, and creates quirk entries for Steinar's devices.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 parent f69115f
History
Tip revision: ad87e03213b552a5c33d5e1e7a19a73768397010 authored by Alan Stern on 10 December 2015, 20:27:21 UTC
USB: add quirk for devices with broken LPM
Tip revision: ad87e03
File Mode Size
Documentation
arch
block
certs
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.get_maintainer.ignore -rw-r--r-- 31 bytes
.gitignore -rw-r--r-- 1.2 KB
.mailmap -rw-r--r-- 5.4 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 94.9 KB
Kbuild -rw-r--r-- 2.6 KB
Kconfig -rw-r--r-- 252 bytes
MAINTAINERS -rw-r--r-- 328.4 KB
Makefile -rw-r--r-- 53.5 KB
README -rw-r--r-- 18.2 KB
REPORTING-BUGS -rw-r--r-- 7.3 KB

README

back to top