2 files changed, 7 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 9b2a54117c91..fa1323ff56b3 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -241,7 +241,10 @@ void drm_helper_disable_unused_functions(struct drm_device *dev)
                 struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
                 crtc->enabled = drm_helper_crtc_in_use(crtc);
                 if (!crtc->enabled) {
-                        crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+                        if (crtc_funcs->disable)
+                                (*crtc_funcs->disable)(crtc);
+                        else
+                                (*crtc_funcs->dpms)(crtc, DRM_MODE_DPMS_OFF);
                         crtc->fb = NULL;
                 }
         }
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 1121f7799c6f..7e3c9766acba 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -63,6 +63,9 @@ struct drm_crtc_helper_funcs {
 
         /* reload the current crtc LUT */
         void (*load_lut)(struct drm_crtc *crtc);
+
+        /* disable crtc when not in use - more explicit than dpms off */
+        void (*disable)(struct drm_crtc *crtc);
 };
 
 struct drm_encoder_helper_funcs {