3b5de76b28
Add documentation for optional use of external clock. All devices supported by this driver can work with an external clock in sync mode. Another mode, called Pulse Per Second (PPS) is supported only by adis1649x devices. The mode is selected by using the "clock-names" property. The pin which is used as external clock input is selected by using a custom optional property called "adi,ext-clk-pin". If this field is left empty, DIO2 is assigned as default external clock input pin. Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.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.