2 files changed, 20 insertions, 0 deletions

diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 61974cb9d205..5e827c29d194 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -848,8 +848,21 @@ static const struct drm_encoder_funcs qxl_enc_funcs = {
         .destroy = qxl_enc_destroy,
 };
 
+static int qxl_mode_create_hotplug_mode_update_property(struct qxl_device *qdev)
+{
+        if (qdev->hotplug_mode_update_property)
+                return 0;
+
+        qdev->hotplug_mode_update_property =
+                drm_property_create_range(qdev->ddev, DRM_MODE_PROP_IMMUTABLE,
+                                          "hotplug_mode_update", 0, 1);
+
+        return 0;
+}
+
 static int qdev_output_init(struct drm_device *dev, int num_output)
 {
+        struct qxl_device *qdev = dev->dev_private;
         struct qxl_output *qxl_output;
         struct drm_connector *connector;
         struct drm_encoder *encoder;
@@ -876,6 +889,8 @@ static int qdev_output_init(struct drm_device *dev, int num_output)
         drm_encoder_helper_add(encoder, &qxl_enc_helper_funcs);
         drm_connector_helper_add(connector, &qxl_connector_helper_funcs);
 
+        drm_object_attach_property(&connector->base,
+                                   qdev->hotplug_mode_update_property, 0);
         drm_sysfs_connector_add(connector);
         return 0;
 }
@@ -988,6 +1003,9 @@ int qxl_modeset_init(struct qxl_device *qdev)
         qdev->ddev->mode_config.max_height = 8192;
 
         qdev->ddev->mode_config.fb_base = qdev->vram_base;
+
+        qxl_mode_create_hotplug_mode_update_property(qdev);
+
         for (i = 0 ; i < qxl_num_crtc; ++i) {
                 qdev_crtc_init(qdev->ddev, i);
                 qdev_output_init(qdev->ddev, i);
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 41d22ed26060..7bda32f68d3b 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -323,6 +323,8 @@ struct qxl_device {
         struct work_struct gc_work;
 
         struct work_struct fb_work;
+
+        struct drm_property *hotplug_mode_update_property;
 };
 
 /* forward declaration for QXL_INFO_IO */