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e0bff43220
The Renoir XHCI controller apparently doesn't resume reliably with the standard D3hot-to-D0 delay. Increase it to 20ms. [Alex: I talked to the AMD USB hardware team and the AMD Windows team and they are not aware of any HW errata or specific issues. The HW works fine in Windows. I was told Windows uses a rather generous default delay of 100ms for PCI state transitions.] Link: https://lore.kernel.org/r/20210722025858.220064-1-alexander.deucher@amd.com Signed-off-by: Marcin Bachry <hegel666@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Cc: stable@vger.kernel.org Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Prike Liang <prike.liang@amd.com> Cc: Shyam Sundar S K <shyam-sundar.s-k@amd.com>
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.