drm/i915/debugfs: Do not print cached information of a disconnected sink

Besides of give the expected output of i915_display_info it will also
avoid some aux ch transactions that would timeout by obvious reasons.
Reviewed-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: NJosé Roberto de Souza <jose.souza@intel.com>
Signed-off-by: NRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181030215750.28213-1-jose.souza@intel.com

drivers/gpu/drm/i915/i915_debugfs.c

@@ -3064,16 +3064,17 @@ static void intel_connector_info(struct seq_file *m,
 	seq_printf(m, "connector %d: type %s, status: %s\n",
 		   connector->base.id, connector->name,
 		   drm_get_connector_status_name(connector->status));
-	if (connector->status == connector_status_connected) {
-		seq_printf(m, "\tname: %s\n", connector->display_info.name);
-		seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
-			   connector->display_info.width_mm,
-			   connector->display_info.height_mm);
-		seq_printf(m, "\tsubpixel order: %s\n",
-			   drm_get_subpixel_order_name(connector->display_info.subpixel_order));
-		seq_printf(m, "\tCEA rev: %d\n",
-			   connector->display_info.cea_rev);
-	}
+
+	if (connector->status == connector_status_disconnected)
+		return;
+
+	seq_printf(m, "\tname: %s\n", connector->display_info.name);
+	seq_printf(m, "\tphysical dimensions: %dx%dmm\n",
+		   connector->display_info.width_mm,
+		   connector->display_info.height_mm);
+	seq_printf(m, "\tsubpixel order: %s\n",
+		   drm_get_subpixel_order_name(connector->display_info.subpixel_order));
+	seq_printf(m, "\tCEA rev: %d\n", connector->display_info.cea_rev);
 
 	if (!intel_encoder)
 		return;