diff --git a/include/linux/fb.h b/include/linux/fb.h
index 882dbd1..043f328 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -727,6 +727,8 @@
 
 /* drivers/video/modedb.c */
 #define VESA_MODEDB_SIZE 43
+#define DMT_SIZE 0x50
+
 extern void fb_var_to_videomode(struct fb_videomode *mode,
 				const struct fb_var_screeninfo *var);
 extern void fb_videomode_to_var(struct fb_var_screeninfo *var,
@@ -777,9 +779,17 @@
 	u32 flag;
 };
 
+struct dmt_videomode {
+	u32 dmt_id;
+	u32 std_2byte_code;
+	u32 cvt_3byte_code;
+	const struct fb_videomode *mode;
+};
+
 extern const char *fb_mode_option;
 extern const struct fb_videomode vesa_modes[];
 extern const struct fb_videomode cea_modes[64];
+extern const struct dmt_videomode dmt_modes[];
 
 struct fb_modelist {
 	struct list_head list;