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dec15c9901
CCLK should be re-parented away from PLLX if PLLX's rate is changing. The PLLP parent is a common safe CPU parent for all Tegra SoCs, thus CCLK will be re-parented to PLLP before PLLX rate-change begins and then switched back to PLLX after the rate-change completion. This patch adds helper functions which perform CCLK re-parenting, these helpers will be utilized by further patches. Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com> Tested-by: Peter Geis <pgwipeout@gmail.com> Tested-by: Marcel Ziswiler <marcel@ziswiler.com> Tested-by: Jasper Korten <jja2000@gmail.com> Tested-by: David Heidelberg <david@ixit.cz> Tested-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.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.