70e9b53dfe
Mostly refactoring, with the exception that USB_PORT_STAT_L1 link state is reported if xhci port link is in U2 AND port is powered. Previously we did not check if the port was powered, but according to xhci spec 4.19.1.1.6 All the 'Enabled' states, including USB_PORT_STAT_L1 (U2), U1, U0 and U3 must have Port power bit set. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.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.