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03674e9bd8
Add rockchip specific glue layer to support USB3 Peripheral mode and Host mode on rockchip platforms (e.g. rk3399). The DesignWare USB3 integrated in rockchip SoCs is a configurable IP Core which can be instantiated as Dual-Role Device (DRD), Host Only (XHCI) and Peripheral Only configurations. We use extcon notifier to manage usb cable detection and mode switch. Enable DWC3 PM runtime auto suspend to allow core enter runtime_suspend if USB cable is dettached. For host mode, it requires to keep whole DWC3 controller in reset state to hold pipe power state in P2 before initializing PHY. And it need to reconfigure USB PHY interface of DWC3 core after deassert DWC3 controller reset. The current driver supports Host only and Peripheral Only well, for now, we will add support for OTG after we have it all stabilized. Change-Id: I821dd19eedec73e6517f0cca184f939a9f313904 Signed-off-by: William Wu <william.wu@rock-chips.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.