diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9124085..a2bd4c6 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3352,6 +3352,9 @@
 }
 extern void intel_i2c_reset(struct drm_device *dev);
 
+/* intel_bios.c */
+int intel_bios_init(struct drm_device *dev);
+
 /* intel_opregion.c */
 #ifdef CONFIG_ACPI
 extern int intel_opregion_setup(struct drm_device *dev);