dt-bindings: ptp: Add device tree binding for IDT 82P33 based PTP clock
Min Li authored

Add device tree binding doc for the PTP clock based on IDT 82P33
Synchronization Management Unit (SMU).

Changes since v1:
 - As suggested by Rob Herring:
   1. Drop reg description for i2c
   2. Replace i2c@1 with i2c
   3. Add addtionalProperties: false
Signed-off-by: default avatarMin Li <min.li.xe@renesas.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
04eed745
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.