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[0/7] drm/i915: Add support for LTTPR non-transparent link training mode

Message ID 20200922125106.30540-1-imre.deak@intel.com (mailing list archive)
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Series drm/i915: Add support for LTTPR non-transparent link training mode | expand

Message

Imre Deak Sept. 22, 2020, 12:50 p.m. UTC 
Add the drm-core helpers and register definitions required to detect
LTTPRs and perform the link training in non-transparent mode. In i915
switch to non-transparent link training mode if any LTTPR is detected.

Cc: dri-devel@lists.freedesktop.org

Imre Deak (7):
  drm/i915: Fix DP link training pattern mask
  drm/i915: Move intel_dp_get_link_status to intel_dp_link_training.c
  drm/i915: Simplify the link training functions
  drm/i915: Factor out a helper to disable the DPCD training pattern
  drm/dp: Add LTTPR helpers
  drm/i915: Switch to LTTPR transparent mode link training
  drm/i915: Switch to LTTPR non-transparent mode link training

 drivers/gpu/drm/drm_dp_helper.c               | 179 ++++++-
 drivers/gpu/drm/i915/display/intel_ddi.c      |   3 +-
 .../drm/i915/display/intel_display_types.h    |   2 +
 drivers/gpu/drm/i915/display/intel_dp.c       |  38 +-
 drivers/gpu/drm/i915/display/intel_dp.h       |   2 -
 .../drm/i915/display/intel_dp_link_training.c | 492 +++++++++++++++---
 .../drm/i915/display/intel_dp_link_training.h |  10 +-
 include/drm/drm_dp_helper.h                   |  56 ++
 8 files changed, 682 insertions(+), 100 deletions(-)