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9bf7cfdbcf
Same as MT8195, MT8188 GPU clock is primarly supplied by the dedicated
mfgpll. The clock "mfg_core_tmp" is only used as an alt clock when
setting mfgpll clock rate.
If we keep the univpll parents from mfg_core_tmp, when setting
GPU frequency to 390000000, the common clock framework would switch
the parent to univpll, instead of setting mfgpll to 390000000:
mfgpll 0 0 0 949999756
univpll 2 2 0 2340000000
univpll_d6 1 1 0 390000000
top_mfg_core_tmp 1 1 0 390000000
mfg_ck_fast_ref 1 1 0 390000000
mfgcfg_bg3d 1 1 0 390000000
This results in failures when subsequent devfreq operations need to
switch to other frequencies. So remove univpll from the parent list.
This solution is taken from commit
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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 reStructuredText 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.