diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index fe653829787293edd4af7cc98f6b69efffcf0aaf..c79bee4b4d565520232b2cbe6de5a0a9b8d2ea3b 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6141,6 +6141,7 @@ static void gen6_enable_rc6(struct drm_i915_private *dev_priv)
 	I915_WRITE(GEN6_RC_CONTROL,
 		   GEN6_RC_CTL_RC6p_ENABLE |
 		   GEN6_RC_CTL_RC6_ENABLE |
+		   GEN6_RC_CTL_EI_MODE(1) |
 		   GEN6_RC_CTL_HW_ENABLE);
 
 	I915_WRITE(GEN6_RC_NORMAL_FREQ,