dt-bindings: usb: add the documentation for USB HCDs
Martin Blumenstingl authored

A USB HCD may have several PHYs which need to be configured before the
the HCD starts working.
This adds the documentation for such a USB HCD as well as a reference to
the new "usb-hcd.txt" from all bindings that implement a USB HCD which
support one USB PHY per port.
Signed-off-by: default avatarMartin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Tested-by: default avatarYixun Lan <yixun.lan@amlogic.com>
Tested-by: default avatarNeil Armstrong <narmstrong@baylibre.con>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
05db0dcc
Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

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.