diff mbox series

[v2,15/21] drm/i915/dp_mst: Reset intel_dp->link_trained during disabling

Message ID 20240520185822.3725844-16-imre.deak@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/dp_mst: Enable link training fallback | expand

Commit Message

Imre Deak May 20, 2024, 6:58 p.m. UTC 
Reset the flag indicating an active link after disabling an MST link,
similarly to how this is done for SST outputs. This avoids trying to
retrain an MST link while its disabled.

Signed-off-by: Imre Deak <imre.deak@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index c9c5d235744ab..66c1c59268167 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -981,6 +981,9 @@  static void intel_mst_disable_dp(struct intel_atomic_state *state,
 	drm_dbg_kms(&i915->drm, "active links %d\n",
 		    intel_dp->active_mst_links);
 
+	if (intel_dp->active_mst_links == 1)
+		intel_dp->link_trained = false;
+
 	intel_hdcp_disable(intel_mst->connector);
 
 	intel_dp_sink_disable_decompression(state, connector, old_crtc_state);