#define DRM_IF_VERSION(maj, min) (maj << 16 | min)
-/* Flags and return codes for get_vblank_timestamp() driver function. */
-#define DRM_CALLED_FROM_VBLIRQ 1
-
-/* get_scanout_position() return flags */
-#define DRM_SCANOUTPOS_VALID (1 << 0)
-#define DRM_SCANOUTPOS_IN_VBLANK (1 << 1)
-#define DRM_SCANOUTPOS_ACCURATE (1 << 2)
-
/**
* DRM device structure. This structure represent a complete card that
* may contain multiple heads.