extern int i915_save_state(struct drm_device *dev);
extern int i915_restore_state(struct drm_device *dev);
+#ifdef CONFIG_ACPI
/* i915_opregion.c */
extern int intel_opregion_init(struct drm_device *dev);
extern void intel_opregion_free(struct drm_device *dev);
extern void opregion_asle_intr(struct drm_device *dev);
extern void opregion_enable_asle(struct drm_device *dev);
+#else
+static inline int intel_opregion_init(struct drm_device *dev) { return 0; }
+static inline void intel_opregion_free(struct drm_device *dev) { return; }
+static inline void opregion_asle_intr(struct drm_device *dev) { return; }
+static inline void opregion_enable_asle(struct drm_device *dev) { return; }
+#endif
/**
* Lock test for when it's just for synchronization of ring access.