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Forward Error Correction is required for DP if we are using DSC but is optional for eDP. Currently the helper intel_dp_supports_dsc checks if fec_enable is set for DP or not. The helper is called after fec_enable is set in crtc_state. Instead of this a better approach would be to: first, call intel_dp_supports_dsc to check for DSC support (along with FEC requirement for DP) and then set fec_enable for DP (if not already set) in crtc_state. To achieve this, remove the check for fec_enable in the helper and instead check for FEC support for DP. With this change the helper intel_dp_supports_dsc can be called earlier and return early if DSC is not supported. The structure intel_dp is added to the helper to get the FEC support for DP. v2: Pass intel_dp to adjust_limits_for_dsc_hblank_expansion_quirk instead of deriving it from connector. (Jani) Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241217093244.3938132-2-ankit.k.nautiyal@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.