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Add a driver to implement the Type C connector class for Chrome OS devices with ECs (Embedded Controllers). The driver relies on firmware device specifications for various port attributes. On ACPI platforms, this is specified using the logical device with HID GOOG0014. On DT platforms, this is specified using the DT node with compatible string "google,cros-ec-typec". The driver reads the device FW node and uses the port attributes to register the typec ports with the Type C connector class framework, but doesn't do much else. Subsequent patches will add more functionality to the driver, including obtaining current port information (polarity, vconn role, current power role etc.) after querying the EC. Co-developed-by: Benson Leung <bleung@chromium.org> Signed-off-by: Prashant Malani <pmalani@chromium.org> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.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.
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.