drm_dp_mst_detect

drm_dp_mst_detect_port
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drm_dp_mst_detect_port — get connection status for an MST port

`enum drm_connector_status drm_dp_mst_detect_port (`	struct drm_connector * `connector`,
	struct drm_dp_mst_topology_mgr * `mgr`,
	struct drm_dp_mst_port * `port)`;

This returns the current connection state for a port. It validates the port pointer still exists so the caller doesn't require a reference

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