[PATCH 0/4] drm/i915/display: Limit invalid joiner combinations harder

[Jani Nikula <jani.nikula@intel.com>]

A bunch of fixes to limit invalid joiner combinations earlier, during
mode enumeration and compute config. Patch 1 is v2 of [1], the rest are
new.

I decided to drop Fixes: and Cc: stable for now, just to thread
carefully. There are no bug reports about this that I know of, and we
can trivially ask for backports as needed.

BR,
Jani.



[1] https://lore.kernel.org/r/20260806143738.2710312-1-jani.nikula@intel.com

Jani Nikula (4):
  drm/i915/display: Limit max joined dotclock on joiner pipes available
  drm/i915/dp: Limit for_each_joiner_candidate() on joiner pipes
    available
  drm/i915/dp: Limit compute config joining to pipes that can actually
    join
  drm/i915/debugfs: Reject invalid force_joined_pipes harder

 drivers/gpu/drm/i915/display/intel_display.c  | 51 ++++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_display.h  |  1 +
 .../drm/i915/display/intel_display_debugfs.c  | 19 ++-----
 drivers/gpu/drm/i915/display/intel_dp.c       | 17 +++----
 drivers/gpu/drm/i915/display/intel_dp_mst.c   |  4 ++
 5 files changed, 64 insertions(+), 28 deletions(-)

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2.47.3