enum exynos_drm_output_type type,
const struct exynos_drm_crtc_ops *ops,
void *context);
-int exynos_drm_crtc_enable_vblank(struct drm_device *dev, unsigned int pipe);
-void exynos_drm_crtc_disable_vblank(struct drm_device *dev, unsigned int pipe);
void exynos_drm_crtc_wait_pending_update(struct exynos_drm_crtc *exynos_crtc);
void exynos_drm_crtc_finish_update(struct exynos_drm_crtc *exynos_crtc,
struct exynos_drm_plane *exynos_plane);