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Configure DP/DM line interrupts based on the USB2 device attached to the root hub port. When HS/FS device is connected, configure the DP line as falling edge to detect both disconnect and remote wakeup scenarios. When LS device is connected, configure DM line as falling edge to detect both disconnect and remote wakeup. When no device is connected, configure both DP and DM lines as rising edge to detect HS/HS/LS device connect scenario. Reviewed-by: Pavankumar Kondeti <quic_pkondeti@quicinc.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Sandeep Maheswaram <quic_c_sanm@quicinc.com> Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com> Link: https://lore.kernel.org/r/1655094654-24052-5-git-send-email-quic_kriskura@quicinc.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.