013df97be4
I2C2 is available on the PE pingroup, on the same pins as the camera sensor interface (CSI) controller's camera control interface pins. This provides an option to use I2C2 instead of that control interface to configure camera sensors. Add a pinctrl node for it. The property /omit-if-no-ref/ is added to keep the device tree blob size down if it is unused. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.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.