diff --git a/drivers/gpu/drm/msm/Kconfig b/drivers/gpu/drm/msm/Kconfig
index 39197b4beea78b8ed7b93c5a1a98c4d524376cd6..1eae5a9645f41dc134dc559eddf889d7e8c181f9 100644
--- a/drivers/gpu/drm/msm/Kconfig
+++ b/drivers/gpu/drm/msm/Kconfig
@@ -65,6 +65,7 @@ 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