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[0/3] drm/i915: Fix DP MST SB message timeouts due to PPS delays

Message ID 20250321145626.94101-1-imre.deak@intel.com (mailing list archive)
Headers show
Series drm/i915: Fix DP MST SB message timeouts due to PPS delays | expand

Message

Imre Deak March 21, 2025, 2:56 p.m. UTC 
This patchset fixes DP MST down request side-band message timeouts on
one port caused by long PPS (panel/backlight, power-cycle) delays on
another eDP port.

Imre Deak (3):
  drm/i915/pps: Add helpers to lock PPS for AUX transfers
  drm/i915/dp_mst: Fix side-band message timeouts due to long PPS delays
  drm/i915/pps: Use intel_pps_is_pipe_instance() instead of open-coding
    it

 drivers/gpu/drm/i915/display/g4x_dp.c       |  6 +-
 drivers/gpu/drm/i915/display/intel_dp.c     |  2 +-
 drivers/gpu/drm/i915/display/intel_dp_aux.c | 16 +----
 drivers/gpu/drm/i915/display/intel_pps.c    | 79 ++++++++++++++++++---
 drivers/gpu/drm/i915/display/intel_pps.h    |  5 +-
 5 files changed, 80 insertions(+), 28 deletions(-)