diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig
index 3087e64e6ebe..a9fadea72da5 100644
--- a/arch/mips/configs/loongson3_defconfig
+++ b/arch/mips/configs/loongson3_defconfig
@@ -283,6 +283,7 @@ CONFIG_DRM_AMDGPU_USERPTR=y
 CONFIG_DRM_AMD_ACP=y
 CONFIG_DRM_AMD_DC=y
 CONFIG_DRM_AMD_DC_SI=y
+CONFIG_DRM_AST=m
 CONFIG_DRM_RADEON=m
 CONFIG_DRM_QXL=y
 CONFIG_DRM_VIRTIO_GPU=y