diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0b6272a2edfc83bead3db89e626907fcc647f70c..83446b55f731f1f87f85b89252732ca38f9998dc 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -3456,7 +3456,7 @@ static void ironlake_update_wm(struct drm_device *dev,
 	 * display plane is used.
 	 */
 	tmp = 0;
-	if (enabled == 1 && /* XXX disabled due to buggy implmentation? */ 0) {
+	if (enabled == 1) {
 		unsigned long line_time_us;
 		int small, large, plane_fbc;
 		int sr_clock, entries;