1 files changed, 23 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 4231d6db72ec..aba79c494587 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -216,7 +216,7 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc)
 EXPORT_SYMBOL(drm_helper_crtc_in_use);
 
 /**
- * drm_disable_unused_functions - disable unused objects
+ * drm_helper_disable_unused_functions - disable unused objects
  * @dev: DRM device
  *
  * LOCKING:
@@ -1162,6 +1162,9 @@ EXPORT_SYMBOL(drm_helper_mode_fill_fb_struct);
 int drm_helper_resume_force_mode(struct drm_device *dev)
 {
         struct drm_crtc *crtc;
+        struct drm_encoder *encoder;
+        struct drm_encoder_helper_funcs *encoder_funcs;
+        struct drm_crtc_helper_funcs *crtc_funcs;
         int ret;
 
         list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -1174,6 +1177,25 @@ int drm_helper_resume_force_mode(struct drm_device *dev)
 
                 if (ret == false)
                         DRM_ERROR("failed to set mode on crtc %p\n", crtc);
+
+                /* Turn off outputs that were already powered off */
+                if (drm_helper_choose_crtc_dpms(crtc)) {
+                        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+
+                                if(encoder->crtc != crtc)
+                                        continue;
+
+                                encoder_funcs = encoder->helper_private;
+                                if (encoder_funcs->dpms)
+                                        (*encoder_funcs->dpms) (encoder,
+                                                                drm_helper_choose_encoder_dpms(encoder));
+
+                                crtc_funcs = crtc->helper_private;
+                                if (crtc_funcs->dpms)
+                                        (*crtc_funcs->dpms) (crtc,
+                                                             drm_helper_choose_crtc_dpms(crtc));
+                        }
+                }
         }
         /* disable the unused connectors while restoring the modesetting */
         drm_helper_disable_unused_functions(dev);