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Display features should not be initialized or de-initialized when there is no display. Skip modeset initialization, output setup, plane, crtc, encoder, connector registration, display cdclk and rawclk initialization, display core initialization, etc. Skip the functionality at as high level as possible, and remove any redundant checks. If the functionality is conditional to *other* display checks, do not add more. If the un-initialization has checks for initialization, do not add more. We explicitly do not care about any GMCH/VLV/CHV code paths, as they've always had and will have display. Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210408203150.237947-3-jose.souza@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.