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The current cdclk/mbus programming sequence is as follows: 1. intel_set_cdclk_pre_plane_update() 2. update_mbus_pre_enable() 3. intel_set_cdclk_post_plane_update() when the actual mdclk/cdclk programming is postponed to intel_set_cdclk_post_plane_update() we must keep using the old mdclk/cdclk ratio during update_mbus_pre_enable(). This guarantees the programmed ratio matches the rest of the hardware state (mdlk/cdclk/mbus joining). v2: Extracted from the vblank synchronized mbus programming patch Cc: Gustavo Sousa <gustavo.sousa@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> #v1 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240402155016.13733-12-ville.syrjala@linux.intel.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.