diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e4c7eac656bd..28db512b5784 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2334,9 +2334,11 @@ int intel_enable_rc6(const struct drm_device *dev)
 	if (INTEL_INFO(dev)->gen == 5)
 		return 0;
 
-	/* Sorry Haswell, no RC6 for you for now. */
+	/* On Haswell, only RC6 is available. So let's enable it by default to
+	 * provide better testing and coverage since the beginning.
+	 */
 	if (IS_HASWELL(dev))
-		return 0;
+		return INTEL_RC6_ENABLE;
 
 	/*
 	 * Disable rc6 on Sandybridge