2 files changed, 17 insertions, 6 deletions

diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
index 47762bbed2de..69851ee14b90 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c
@@ -804,7 +804,10 @@ static struct drm_connector_helper_funcs sun6i_dsi_connector_helper_funcs = {
 static enum drm_connector_status
 sun6i_dsi_connector_detect(struct drm_connector *connector, bool force)
 {
-	return connector_status_connected;
+	struct sun6i_dsi *dsi = connector_to_sun6i_dsi(connector);
+
+	return dsi->panel ? connector_status_connected :
+			    connector_status_disconnected;
 }
 
 static const struct drm_connector_funcs sun6i_dsi_connector_funcs = {
@@ -945,10 +948,15 @@ static int sun6i_dsi_attach(struct mipi_dsi_host *host,
 
 	if (IS_ERR(panel))
 		return PTR_ERR(panel);
+	if (!dsi->drm)
+		return -EPROBE_DEFER;
 
 	dsi->panel = panel;
 	dsi->device = device;
 
+	drm_panel_attach(dsi->panel, &dsi->connector);
+	drm_kms_helper_hotplug_event(dsi->drm);
+
 	dev_info(host->dev, "Attached device %s\n", device->name);
 
 	return 0;
@@ -958,10 +966,14 @@ static int sun6i_dsi_detach(struct mipi_dsi_host *host,
 			    struct mipi_dsi_device *device)
 {
 	struct sun6i_dsi *dsi = host_to_sun6i_dsi(host);
+	struct drm_panel *panel = dsi->panel;
 
 	dsi->panel = NULL;
 	dsi->device = NULL;
 
+	drm_panel_detach(panel);
+	drm_kms_helper_hotplug_event(dsi->drm);
+
 	return 0;
 }
 
@@ -1026,9 +1038,6 @@ static int sun6i_dsi_bind(struct device *dev, struct device *master,
 	struct sun6i_dsi *dsi = dev_get_drvdata(dev);
 	int ret;
 
-	if (!dsi->panel)
-		return -EPROBE_DEFER;
-
 	drm_encoder_helper_add(&dsi->encoder,
 			       &sun6i_dsi_enc_helper_funcs);
 	ret = drm_encoder_init(drm,
@@ -1054,7 +1063,8 @@ static int sun6i_dsi_bind(struct device *dev, struct device *master,
 	}
 
 	drm_connector_attach_encoder(&dsi->connector, &dsi->encoder);
-	drm_panel_attach(dsi->panel, &dsi->connector);
+
+	dsi->drm = drm;
 
 	return 0;
 
@@ -1068,7 +1078,7 @@ static void sun6i_dsi_unbind(struct device *dev, struct device *master,
 {
 	struct sun6i_dsi *dsi = dev_get_drvdata(dev);
 
-	drm_panel_detach(dsi->panel);
+	dsi->drm = NULL;
 }
 
 static const struct component_ops sun6i_dsi_ops = {
diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
index 61e88ea6044d..c863900ae3b4 100644
--- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
+++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.h
@@ -29,6 +29,7 @@ struct sun6i_dsi {
 
 	struct device		*dev;
 	struct mipi_dsi_device	*device;
+	struct drm_device	*drm;
 	struct drm_panel	*panel;
 };