On Mon, Feb 24, 2025 at 07:26:36PM +0200, Ville Syrjala wrote: > From: Ville Syrjälä <[email protected]> > > 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...
On patches 1-8: Tested-by: Imre Deak <[email protected]> Reviewed-by: Imre Deak <[email protected]> Few nits later on the patches. > 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 >
