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* [PATCH 0/5] drm/i915/dp: Sanitize link capability change handling
@ 2026-05-18 11:24 Imre Deak
  2026-05-18 11:24 ` [PATCH 1/5] drm/i915/dp: Add helpers to reset link params Imre Deak
                   ` (7 more replies)
  0 siblings, 8 replies; 21+ messages in thread
From: Imre Deak @ 2026-05-18 11:24 UTC (permalink / raw)
  To: intel-gfx, intel-xe; +Cc: Ville Syrjälä, Jani Nikula

Sanitize link capability change handling via long HPD pulse /
RX_CAP_CHANGED HPD IRQ events and the connector detect paths by making
all of them consistently reset the link training/recovery and MST link
probe state after a link capability change.

This also prepares for the refactoring of the DP link capability logic
in patch [1], simplifying the handling of link capability changes in
that patchset based on the above.

[1] https://lore.kernel.org/all/20260428125233.1664668-1-imre.deak@intel.com

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>

Imre Deak (5):
  drm/i915/dp: Add helpers to reset link params
  drm/i915/dp: Reset link params after a DPRX capability change
  drm/i915/dp: Add helper to set common link params
  drm/i915/dp: Cache max common lane count
  drm/i915/dp: Detect changes in common link parameters

 drivers/gpu/drm/i915/display/g4x_dp.c         |   2 +-
 drivers/gpu/drm/i915/display/intel_ddi.c      |   2 +-
 .../drm/i915/display/intel_display_types.h    |   1 +
 drivers/gpu/drm/i915/display/intel_dp.c       | 103 +++++++++++++++---
 drivers/gpu/drm/i915/display/intel_dp.h       |   3 +-
 .../drm/i915/display/intel_dp_link_training.c |   4 +-
 6 files changed, 94 insertions(+), 21 deletions(-)

-- 
2.49.1


^ permalink raw reply	[flat|nested] 21+ messages in thread

end of thread, other threads:[~2026-05-22 15:32 UTC | newest]

Thread overview: 21+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-05-18 11:24 [PATCH 0/5] drm/i915/dp: Sanitize link capability change handling Imre Deak
2026-05-18 11:24 ` [PATCH 1/5] drm/i915/dp: Add helpers to reset link params Imre Deak
2026-05-21 21:36   ` Ville Syrjälä
2026-05-22  7:36     ` Hogander, Jouni
2026-05-22  7:47     ` Imre Deak
2026-05-22 10:29       ` Jani Nikula
2026-05-22 12:39         ` Ville Syrjälä
2026-05-22 12:46           ` Jani Nikula
2026-05-22 12:50             ` Ville Syrjälä
2026-05-22 15:32               ` Imre Deak
2026-05-18 11:24 ` [PATCH 2/5] drm/i915/dp: Reset link params after a DPRX capability change Imre Deak
2026-05-18 11:24 ` [PATCH 3/5] drm/i915/dp: Add helper to set common link params Imre Deak
2026-05-22  7:20   ` Hogander, Jouni
2026-05-18 11:24 ` [PATCH 4/5] drm/i915/dp: Cache max common lane count Imre Deak
2026-05-22  7:21   ` Hogander, Jouni
2026-05-18 11:24 ` [PATCH 5/5] drm/i915/dp: Detect changes in common link parameters Imre Deak
2026-05-21 21:43   ` Ville Syrjälä
2026-05-22  7:54     ` Imre Deak
2026-05-18 14:09 ` ✗ i915.CI.BAT: failure for drm/i915/dp: Sanitize link capability change handling Patchwork
2026-05-18 16:52 ` ✓ i915.CI.BAT: success for drm/i915/dp: Sanitize link capability change handling (rev2) Patchwork
2026-05-19  5:53 ` ✓ i915.CI.Full: " Patchwork

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