drm/rockchip: fixup display reference count

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / rockchip / rockchip_drm_drv.c

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 59605f9056af017a505795c3ccab1e9ec4da53ec..4e3ff4315e490f2439f4be1bd603d3a97dcd835b 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -604,6 +604,19 @@ static void show_loader_logo(struct drm_device *drm_dev)
 
        list_for_each_entry_safe(set, tmp, &mode_set_list, head) {
                struct drm_crtc *crtc = set->crtc;
+               struct drm_connector *conn = set->connector;
+
+               if (!set->mode_changed) {
+                       /*
+                        * restore connector and crtc's state, keep all the
+                        * reference fine.
+                        */
+                       WARN_ON(drm_atomic_set_crtc_for_connector(conn->state,
+                                                                 NULL));
+                       WARN_ON(drm_atomic_set_mode_for_crtc(crtc->state,
+                                                            NULL));
+                       crtc->state->active = false;
+               }
 
                list_del(&set->head);
                kfree(set);