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The GPU PLL0 is not a fixed PLL and the rate can be set on it: this is necessary especially on boards which bootloader is setting a very low rate on this PLL before booting Linux, which would be unsuitable for postdividing to reach the maximum allowed Adreno GPU frequency of 710MHz (or, actually, even 670MHz..) on this SoC. To allow setting rates on the GPU PLL0, also define VCO boundaries and set the CLK_SET_RATE_PARENT flag to the GPU PLL0 postdivider. With this change, the Adreno GPU is now able to scale through all the available frequencies. Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Link: https://lore.kernel.org/r/20210114221059.483390-12-angelogioacchino.delregno@somainline.org Signed-off-by: Stephen Boyd <sboyd@kernel.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.