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The clock framework supports clocks that can have their rate changed without the kernel knowing about it using the CLK_GET_RATE_NOCACHE flag. As its name suggests, this flag turns off the rate caching in the clock framework, reading out the rate from the hardware any time we need to read it. Let's add a couple of tests to make sure it works as intended. Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> # imx8mp Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> # exynos4210, meson g12b Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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.