Avoid the following build errors, seen with m68k:allmodconfig and other architectures which do not support HAVE_DMA_ATTRS.

ERROR: "drm_gem_cma_create" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_prime_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_prime_get_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_vm_ops" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_mmap" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_prime_vunmap" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_prime_import_sg_table" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_prime_vmap" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_dumb_map_offset" [drivers/gpu/drm/vc4/vc4.ko] undefined! ERROR: "drm_gem_cma_create" [drivers/gpu/drm/drm_kms_helper.ko] undefined! ERROR: "drm_gem_cma_describe" [drivers/gpu/drm/drm_kms_helper.ko] undefined! ERROR: "drm_gem_cma_free_object" [drivers/gpu/drm/drm_kms_helper.ko] undefined!

Cc: Eric Anholt eric@anholt.net Fixes: c8b75bca92cb ("drm/vc4: Add KMS support for Raspberry Pi.") Signed-off-by: Guenter Roeck linux@roeck-us.net --- drivers/gpu/drm/vc4/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vc4/Kconfig b/drivers/gpu/drm/vc4/Kconfig index e502802d74b6..2d7d115ddf3f 100644 --- a/drivers/gpu/drm/vc4/Kconfig +++ b/drivers/gpu/drm/vc4/Kconfig @@ -1,9 +1,10 @@ config DRM_VC4 tristate "Broadcom VC4 Graphics" depends on ARCH_BCM2835 || COMPILE_TEST - depends on DRM + depends on DRM && HAVE_DMA_ATTRS select DRM_KMS_HELPER select DRM_KMS_CMA_HELPER + select DRM_GEM_CMA_HELPER help Choose this option if you have a system that has a Broadcom VC4 GPU, such as the Raspberry Pi or other BCM2708/BCM2835.