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The specification states that the pre-dividing ratio ranges from 1≤N≤15 and the feedback dividing ratio ranges from 16≤M≤512, and lower values have a eliminating effect on external reference clock jitter. The following example is given in specification: Bandwidth Frequency(MHz) N/M 1.41MHz 148.5 2/20 458KHz 148.5 3/30 322.89KHz 148.5 6/60 229KHz 148.5 12/120 Here the configuration is configured according to the minimum value in the sample Type: Fix Redmine ID: N/A Associated modifications: N/A Test: N/A Signed-off-by: Zhibin Huang <zhibin.huang@rock-chips.com> Change-Id: I73e9cc5d70816e5409a48866430ed3762821909b
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.