Ankit Nautiyal 3a47280b76 drm/i915/dp: Check for HAS_DSC_3ENGINES while configuring DSC slices
DSC 12 slices configuration is used for some specific cases with
Ultrajoiner. This can be supported only when each of the 4 joined pipes
have 3 DSC engines each.

Add the missing check for 3 DSC engines support before using 3 DSC
slices per pipe.

Fixes: be7f5fcdf4 ("drm/i915/dp: Enable 3 DSC engines for 12 slices")
Cc: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Cc: Suraj Kandpal <suraj.kandpal@intel.com>
Cc: <stable@vger.kernel.org> # v6.14+
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://lore.kernel.org/r/20250414024256.2782702-3-ankit.k.nautiyal@intel.com
(cherry picked from commit da9b1c61e7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2025-04-15 10:33:37 +03:00
2025-04-06 10:00:04 -07:00
2025-02-19 14:53:27 -07:00
2025-04-13 11:54:49 -07:00

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.
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