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Takashi Iwai a6630529ae ALSA: hda: Workaround for spurious wakeups on some Intel platforms 
We've received a regression report on Intel HD-audio controller that
wakes up immediately after S3 suspend.  The bisection leads to the
commit c4c8dd6ef8 ("ALSA: hda: Skip controller resume if not
needed").  This commit replaces the system-suspend to use
pm_runtime_force_suspend() instead of the direct call of
__azx_runtime_suspend().  However, by some really mysterious reason,
pm_runtime_force_suspend() causes a spurious wakeup (although it calls
the same __azx_runtime_suspend() internally).

As an ugly workaround for now, revert the behavior to call
__azx_runtime_suspend() and __azx_runtime_resume() for those old Intel
platforms that may exhibit such a problem, while keeping the new
standard pm_runtime_force_suspend() and pm_runtime_force_resume()
pair for the remaining chips.

Fixes: c4c8dd6ef8 ("ALSA: hda: Skip controller resume if not needed")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=208649
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200727164443.4233-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-07-27 18:45:38 +02:00
arch A set of EFI fixes: 2020-05-24 10:24:10 -07:00
block
certs
crypto
Documentation ASoC: Fixes for v5.8 2020-07-17 18:19:02 +02:00
drivers Merge remote-tracking branch 'asoc/for-5.8' into asoc-linus 2020-06-01 13:01:15 +01:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-23 17:16:18 -07:00
include ASoC: Fixes for v5.8 2020-07-17 18:19:02 +02:00
init A single fix for early boot crashes of kernels built with gcc10 and 2020-05-17 11:08:29 -07:00
ipc
kernel A set of fixes for the scheduler: 2020-05-24 10:14:58 -07:00
lib Revert "kobject: Make sure the parent does not get released before its children" 2020-05-23 17:11:11 +02:00
LICENSES
mm z3fold: fix use-after-free when freeing handles 2020-05-23 10:26:32 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-23 17:16:18 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:10:06 -07:00
scripts
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-23 17:16:18 -07:00
sound ALSA: hda: Workaround for spurious wakeups on some Intel platforms 2020-07-27 18:45:38 +02:00
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-23 17:16:18 -07:00
usr
virt
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MAINTAINERS ASoC: Fixes for v5.8 2020-07-17 18:19:02 +02:00
Makefile Linux 5.7-rc7 2020-05-24 15:32:54 -07:00
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.

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.