diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index dabb4a1ccdcf70150db023a2815e460e87ea6333..1aad34b5ffd7f42d9e605ed79de1cec10bcbb5c6 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -60,6 +60,7 @@ config DRM_MSM_HDMI_HDCP
 config DRM_MSM_DP
 	bool "Enable DisplayPort support in MSM DRM driver"
 	depends on DRM_MSM
+	select RATIONAL
 	default y
 	help
 	  Compile in support for DP driver in MSM DRM driver. DP external