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Kai-Heng Feng
a34084ba9a
[ Upstream commitf5dac54d9d] Both pm_runtime_force_suspend() and pm_runtime_force_resume() have some implicit checks, so it can make code flow more straightforward if we separate runtime and system suspend callbacks. High Definition Audio Specification, 4.5.9.3 Codec Wake From System S3 states that codec can wake the system up from S3 if WAKEEN is toggled. Since HDA controller has different wakeup settings for runtime and system susend, we also need to explicitly disable direct-complete which can be enabled automatically by PCI core. In addition to that, avoid waking up codec if runtime resume is for system suspend, to not break direct-complete for codecs. While at it, also remove AZX_DCAPS_SUSPEND_SPURIOUS_WAKEUP, as the original bug commita6630529ae("ALSA: hda: Workaround for spurious wakeups on some Intel platforms") solves doesn't happen with this patch. Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Link: https://lore.kernel.org/r/20201027130038.16463-3-kai.heng.feng@canonical.com Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.