diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index a1705d6..7df7876 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -319,8 +319,8 @@ enum drm_panel_orientation {
  *             EDID's detailed monitor range
  */
 struct drm_monitor_range_info {
-	u8 min_vfreq;
-	u8 max_vfreq;
+	u16 min_vfreq;
+	u16 max_vfreq;
 };
 
 /**
diff --git a/include/drm/drm_edid.h b/include/drm/drm_edid.h
index 2181977..1ed61e2 100644
--- a/include/drm/drm_edid.h
+++ b/include/drm/drm_edid.h
@@ -92,6 +92,11 @@ struct detailed_data_string {
 	u8 str[13];
 } __attribute__((packed));
 
+#define DRM_EDID_RANGE_OFFSET_MIN_VFREQ (1 << 0) /* 1.4 */
+#define DRM_EDID_RANGE_OFFSET_MAX_VFREQ (1 << 1) /* 1.4 */
+#define DRM_EDID_RANGE_OFFSET_MIN_HFREQ (1 << 2) /* 1.4 */
+#define DRM_EDID_RANGE_OFFSET_MAX_HFREQ (1 << 3) /* 1.4 */
+
 #define DRM_EDID_DEFAULT_GTF_SUPPORT_FLAG   0x00
 #define DRM_EDID_RANGE_LIMITS_ONLY_FLAG     0x01
 #define DRM_EDID_SECONDARY_GTF_SUPPORT_FLAG 0x02