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MediaTek Cache Coherent Interconnect (CCI) uses software devfreq module for scaling clock frequency and adjust voltage. The phandle could be linked between CPU and MediaTek CCI for some MediaTek SoCs, like MT8183 and MT8186. The reason we need the link status between cpufreq and MediaTek cci is cpufreq and mediatek cci could share the same regulator in some MediaTek SoCs. Therefore, to prevent the issue of high frequency and low voltage, we need to use this to make sure mediatek cci is ready. Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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.