| Message ID | 20240514191418.2863344-16-imre.deak@intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/i915/dp_mst: Enable link training fallback | expand |
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);
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(+)