[PATCH 14/14] drm/i915/dp_mst: Enable LT fallback between UHBR/non-UHBR link rates

Imre Deak imre.deak at intel.com
Mon Jul 22 16:55:03 UTC 2024


Enable switching between UHBR and non-UHBR link rates on MST links when
reducing the link parameters after an LT failure.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_link_training.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_link_training.c b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
index 0c8e0d6437b5b..270080b2735f2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_link_training.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_link_training.c
@@ -1188,11 +1188,6 @@ static bool reduce_link_params_in_bw_order(struct intel_dp *intel_dp,
 		     intel_dp->link.force_lane_count != lane_count))
 			continue;
 
-		/* TODO: Make switching from UHBR to non-UHBR rates work. */
-		if (drm_dp_is_uhbr_rate(crtc_state->port_clock) !=
-		    drm_dp_is_uhbr_rate(link_rate))
-			continue;
-
 		break;
 	}
 
-- 
2.44.2



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