@@ -12303,6 +12303,7 @@ static bool check_digital_port_conflicts(struct drm_atomic_state *state)
struct drm_device *dev = state->dev;
struct drm_connector *connector;
unsigned int used_ports = 0;
+ unsigned int used_mst_ports = 0;
/*
* Walk the connector list instead of the encoder
@@ -12339,11 +12340,20 @@ static bool check_digital_port_conflicts(struct drm_atomic_state *state)
return false;
used_ports |= port_mask;
+ break;
+ case INTEL_OUTPUT_DP_MST:
+ used_mst_ports |=
+ 1 << enc_to_mst(&encoder->base)->primary->port;
+ break;
default:
break;
}
}
+ /* can't mix MST and SST/HDMI on the same port */
+ if (used_ports & used_mst_ports)
+ return false;
+
return true;
}