[opensuse-arm] kernel-exynos 3.15-rc5 build failure

Hi, kernel-exynos is failing as follows: [22654s] drivers/built-in.o: In function `exynos_drm_attach_lcd_bridge': [22654s] /home/abuild/rpmbuild/BUILD/kernel-exynos-3.15.rc5/linux-3.15-rc5/drivers/gpu/drm/exynos/exynos_dp_core.c:1004: undefined reference t...