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Speed change is set via dw_pcie_setup_rc(), so if both of links support gen2 or gen3, auto speed change will happen. However, if it's not, provide a manual speed change for EP function driver. Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com> Change-Id: Ib0dc765452aef0723968c5d48b5b44de24ca141e
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.