+enum drm_mode_status drm_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
+{
+ const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+ if (!crtc_funcs || !crtc_funcs->mode_valid)
+ return MODE_OK;
+
+ return crtc_funcs->mode_valid(crtc, mode);
+}
+
+enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode)
+{
+ const struct drm_encoder_helper_funcs *encoder_funcs =
+ encoder->helper_private;
+
+ if (!encoder_funcs || !encoder_funcs->mode_valid)
+ return MODE_OK;
+
+ return encoder_funcs->mode_valid(encoder, mode);
+}
+
+enum drm_mode_status drm_connector_mode_valid(struct drm_connector *connector,
+ struct drm_display_mode *mode)
+{
+ const struct drm_connector_helper_funcs *connector_funcs =
+ connector->helper_private;
+
+ if (!connector_funcs || !connector_funcs->mode_valid)
+ return MODE_OK;
+
+ return connector_funcs->mode_valid(connector, mode);
+}
+