From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Implement the POST_LT_ADJ_REQ sequence, which is supposed
to be used to further tune the link vswing/pre-emphasis
when TPS4 is not supported.
Unfortunately I don't have any displays/dongles that support
this so I wasn't able to test anything. Hopefully CI has
something...
Ville Syrjälä (9):
drm/dp: Add definitions for POST_LT_ADJ training sequence
drm/dp: Add POST_LT_ADJ_REQ helpers
drm/i915/dp: Clear DPCD training pattern before transmitting the idle
pattern
drm/i915/dp: Have intel_dp_get_adjust_train() tell us if anything
changed
drm/i915/dp: Implement the POST_LT_ADJ_REQ sequence
drm/i915/dp: Move intel_dp_training_pattern()
drm/i915/dp: Implement .set_idle_link_train() for everyone
drm/i915/dp: Make .set_idle_link_train() mandatory
hax: drm/i915: Disable TPS4 support to force POST_LT_ADJ_REQ usage
drivers/gpu/drm/display/drm_dp_helper.c | 8 +
drivers/gpu/drm/i915/display/g4x_dp.c | 33 ++-
.../drm/i915/display/intel_dp_link_training.c | 267 +++++++++++++-----
.../drm/i915/display/intel_dp_link_training.h | 4 +-
drivers/gpu/drm/i915/display/intel_dp_mst.c | 2 +-
include/drm/display/drm_dp.h | 3 +
include/drm/display/drm_dp_helper.h | 8 +
7 files changed, 253 insertions(+), 72 deletions(-)
--
2.45.3
