diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 0df15673eed206eb2337ececca140dba219f5987..c3925790203b5647c5ef223dedf96f9cf41c508f 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -340,37 +340,6 @@ void acpi_video_set_dmi_backlight_type(enum acpi_backlight_type type)
 }
 EXPORT_SYMBOL(acpi_video_set_dmi_backlight_type);
 
-/*
- * Compatiblity function, this is going away as soon as all drivers are
- * converted to acpi_video_set_dmi_backlight_type().
- *
- * Promote the vendor interface instead of the generic video module.
- * After calling this function you will probably want to call
- * acpi_video_unregister() to make sure the video module is not loaded
- */
-void acpi_video_dmi_promote_vendor(void)
-{
-	acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
-}
-EXPORT_SYMBOL(acpi_video_dmi_promote_vendor);
-
-/*
- * Compatiblity function, this is going away as soon as all drivers are
- * converted to acpi_video_get_backlight_type().
- *
- * Returns true if video.ko can do backlight switching.
- */
-int acpi_video_backlight_support(void)
-{
-	/*
-	 * This is done this way since vendor drivers call this to see
-	 * if they should load, and we do not want them to load for both
-	 * the acpi_backlight_video and acpi_backlight_native cases.
-	 */
-	return acpi_video_get_backlight_type() != acpi_backlight_vendor;
-}
-EXPORT_SYMBOL(acpi_video_backlight_support);
-
 void __exit acpi_video_detect_exit(void)
 {
 	if (backlight_notifier_registered)
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index f097c0a2718e564732c62a6d43bb601f94ae21e8..5966d1d9280e2e23c24f446012b1fae808f8cec6 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -245,25 +245,6 @@ extern bool wmi_has_guid(const char *guid);
 
 extern char acpi_video_backlight_string[];
 extern long acpi_is_video_device(acpi_handle handle);
-
-#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
-
-extern void acpi_video_dmi_promote_vendor(void);
-extern int acpi_video_backlight_support(void);
-
-#else
-
-static inline void acpi_video_dmi_promote_vendor(void)
-{
-}
-
-static inline int acpi_video_backlight_support(void)
-{
-	return 0;
-}
-
-#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
-
 extern int acpi_blacklisted(void);
 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
 extern void acpi_osi_setup(char *str);