drm/i915: Merge ring flushing and lazy requests

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0505ddb..791374c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -5058,7 +5058,7 @@
 
 	/* Schedule the pipelined flush */
 	if (was_dirty)
-		i915_gem_flush_ring(dev, obj_priv->ring, 0, was_dirty);
+		i915_gem_flush_ring(dev, NULL, obj_priv->ring, 0, was_dirty);
 
 	if (IS_GEN3(dev) || IS_GEN2(dev)) {
 		u32 flip_mask;