diff --git a/drivers/gpu/drm/i915/display/intel_sdvo.h b/drivers/gpu/drm/i915/display/intel_sdvo.h
index 2868852c85f2..d1815b4103d4 100644
--- a/drivers/gpu/drm/i915/display/intel_sdvo.h
+++ b/drivers/gpu/drm/i915/display/intel_sdvo.h
@@ -14,9 +14,22 @@ struct drm_i915_private;
 enum pipe;
 enum port;
 
+#ifdef I915
 bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv,
 			     i915_reg_t sdvo_reg, enum pipe *pipe);
 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
 		     i915_reg_t reg, enum port port);
+#else
+static inline bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv,
+					   i915_reg_t sdvo_reg, enum pipe *pipe)
+{
+	return false;
+}
+static inline bool intel_sdvo_init(struct drm_i915_private *dev_priv,
+				   i915_reg_t reg, enum port port)
+{
+	return false;
+}
+#endif
 
 #endif /* __INTEL_SDVO_H__ */