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[v3,0/5] drm/dp: Fix link training interrupted by HPD pulse

Message ID 20250226171924.2646997-1-imre.deak@intel.com (mailing list archive)
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Series drm/dp: Fix link training interrupted by HPD pulse | expand

Message

Imre Deak Feb. 26, 2025, 5:19 p.m. UTC 
This is v3 of [1] with the following changes:
- Rename intel_hpd_suspend/resume() to intel_hpd_block/unblock(). (Jani,
  patch 2,3,5)
- Handle encoders using a shared HPD pin properly, during
  blocking/unblocking the HPD handling. (patch 2, 5)

[1] https://lore.kernel.org/all/20250224193115.2058512-1-imre.deak@intel.com

Cc: Jani Nikula <jani.nikula@intel.com>

Imre Deak (5):
  drm/i915/hpd: Let an HPD pin be in the disabled state when handling
    missed IRQs
  drm/i915/hpd: Add support for blocking the IRQ handling on an HPD pin
  drm/i915/dp: Fix link training interrupted by a short HPD pulse
  drm/i915/dp: Queue a link check after link training is complete
  drm/i915/crt: Use intel_hpd_block/unblock() instead of
    intel_hpd_disable/enable()

 drivers/gpu/drm/i915/display/intel_crt.c      |   7 +-
 .../gpu/drm/i915/display/intel_display_core.h |   1 +
 .../drm/i915/display/intel_dp_link_training.c |  23 +-
 drivers/gpu/drm/i915/display/intel_hotplug.c  | 291 ++++++++++++++----
 drivers/gpu/drm/i915/display/intel_hotplug.h  |   5 +-
 5 files changed, 263 insertions(+), 64 deletions(-)