This is v2 of https://patchwork.freedesktop.org/series/88015/ also making sure that LTTPRs are detected and initialized only if the DPCD and LTTPR revisions are > 1.4 as required by Display Port specification. Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> # v5.11 Imre Deak (3): drm/i915/ilk-glk: Fix link training on links with LTTPRs drm/i915: Disable LTTPR support when the DPCD rev < 1.4 drm/i915: Disable LTTPR support when the LTTPR rev < 1.4 drivers/gpu/drm/i915/display/intel_dp.c | 4 +- drivers/gpu/drm/i915/display/intel_dp_aux.c | 7 ++ .../drm/i915/display/intel_dp_link_training.c | 66 ++++++++++++++----- .../drm/i915/display/intel_dp_link_training.h | 2 +- 4 files changed, 58 insertions(+), 21 deletions(-) -- 2.25.1
