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Mario Limonciello
d1658268e4
The XHCI controller is required to enter D3hot rather than D3cold for AMD s2idle on this hardware generation. Otherwise, the 'Controller Not Ready' (CNR) bit is not being cleared by host in resume and eventually this results in xhci resume failures during the s2idle wakeup. Link: https://lore.kernel.org/linux-usb/1612527609-7053-1-git-send-email-Prike.Liang@amd.com/ Suggested-by: Prike Liang <Prike.Liang@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Cc: stable <stable@vger.kernel.org> # 5.11+ Link: https://lore.kernel.org/r/20210527154534.8900-1-mario.limonciello@amd.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.