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486f87a868
Add support for COMBOPHY which is used either by the USB3 and PCIe controller. USB3 or PCIe mode is done with phy_set_mode(). PCIe internal reference clock can be generated from the internal clock source or optionnaly from an external 100Mhz pad. Signed-off-by: Christian Bruel <christian.bruel@foss.st.com> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.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 reStructuredText 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.