+static void omap_disconnect_dssdevs(void)
+{
+ struct omap_dss_device *dssdev = NULL;
+
+ for_each_dss_dev(dssdev)
+ dssdev->driver->disconnect(dssdev);
+}
+
+static int omap_connect_dssdevs(void)
+{
+ int r;
+ struct omap_dss_device *dssdev = NULL;
+ bool no_displays = true;
+
+ for_each_dss_dev(dssdev) {
+ r = dssdev->driver->connect(dssdev);
+ if (r == -EPROBE_DEFER) {
+ omap_dss_put_device(dssdev);
+ goto cleanup;
+ } else if (r) {
+ dev_warn(dssdev->dev, "could not connect display: %s\n",
+ dssdev->name);
+ } else {
+ no_displays = false;
+ }
+ }
+
+ if (no_displays)
+ return -EPROBE_DEFER;
+
+ return 0;
+
+cleanup:
+ /*
+ * if we are deferring probe, we disconnect the devices we previously
+ * connected
+ */
+ omap_disconnect_dssdevs();
+
+ return r;
+}