diff --git a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h
index 0029a39efb1cb5ffe09e6d775af18cfcdfbfd2be..14bed5b1fa97448c0ba944408c5d385d2d3c6e17 100644
--- a/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h
+++ b/drivers/gpu/drm/amd/display/dc/dm_pp_smu.h
@@ -38,7 +38,8 @@ enum pp_smu_ver {
 	 * of interface sharing between families of ASIcs.
 	 */
 	PP_SMU_UNSUPPORTED,
-	PP_SMU_VER_RV
+	PP_SMU_VER_RV,
+	PP_SMU_VER_MAX
 };
 
 struct pp_smu {