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Enable DSC using the DSC AUX device stored for this purpose in the connector. For clarity add separate functions to enable/disable the decompression, since these sequences will diverge more in follow-up patches that also enable/disable DSC passthrough and on MST do the actual enabling/disabling only for the first/last user of the given AUX device. As a preparation for the latter refcounting change, also pass the atomic state to the functions. While at it set/clear only the DP_DECOMPRESSION_EN flag in the DP_DSC_ENABLE DPCD register, preserving the reserved register bits. Besides preserving the reserved register bits, the behavior stays as before, as DSC is still only enabled for the first MST stream (which a follow-up patch changes, enabling it for all streams). v2: - Add a helper function setting/clearing the decompression flag, preserving the reserved register bits. v3: - Add separate functions to enable/disable decompression and pass the atomic state to these. - Add DocBook for both functions. Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com> (v2) Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231030155843.2251023-24-imre.deak@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 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.