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Apparently, both DCE 6.0 and 6.4 have 3 PLLs, but PLL0 can only be used for DP. Make sure to initialize the correct amount of PLLs in DC for these DCE versions and use PLL0 only for DP. Also, on DCE 6.0 and 6.4, the PLL0 needs to be powered on at initialization as opposed to DCE 6.1 and 7.x which use a different clock source for DFS. The following functions were used as reference from the old radeon driver implementation of DCE 6.x: - radeon_atom_pick_pll - atombios_crtc_set_disp_eng_pll Reviewed-by: Rodrigo Siqueira <siqueira@igalia.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.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 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.