diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index bac72c859a84..91f23b7f0af2 100644
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -83,8 +83,6 @@ struct intel_dbuf_state {
 	bool joined_mbus;
 };
 
-int intel_dbuf_init(struct drm_i915_private *dev_priv);
-
 struct intel_dbuf_state *
 intel_atomic_get_dbuf_state(struct intel_atomic_state *state);