diff --git a/Documentation/gpu/drm-kms.rst b/Documentation/gpu/drm-kms.rst
index 449acc2517c732fe955739d17d7b8b19f3418a11..6e7ab57924f03251404783154520b3ef23d2dcbe 100644
--- a/Documentation/gpu/drm-kms.rst
+++ b/Documentation/gpu/drm-kms.rst
@@ -559,6 +559,12 @@ connector and plane objects by calling the
 pointer to the target object, a pointer to the previously created
 property and an initial instance value.
 
+Blending and Z-Position properties
+----------------------------------
+
+.. kernel-doc:: drivers/gpu/drm/drm_blend.c
+   :export:
+
 Existing KMS Properties
 -----------------------
 
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index 2eff1a33ab6321d1f626ee06cbb117c74f1f9daa..193ff2d0947992a6d3eed5af7049edeb804226b2 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -13,7 +13,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_trace_points.o drm_global.o drm_prime.o \
 		drm_rect.o drm_vma_manager.o drm_flip_work.o \
 		drm_modeset_lock.o drm_atomic.o drm_bridge.o \
-		drm_framebuffer.o drm_connector.o
+		drm_framebuffer.o drm_connector.o drm_blend.o
 
 drm-$(CONFIG_COMPAT) += drm_ioc32.o
 drm-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_gem_cma_helper.o
@@ -25,7 +25,7 @@ drm-$(CONFIG_AGP) += drm_agpsupport.o
 drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \
 		drm_plane_helper.o drm_dp_mst_topology.o drm_atomic_helper.o \
 		drm_kms_helper_common.o drm_dp_dual_mode_helper.o \
-		drm_simple_kms_helper.o drm_blend.o drm_modeset_helper.o
+		drm_simple_kms_helper.o drm_modeset_helper.o
 
 drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
 drm_kms_helper-$(CONFIG_DRM_FBDEV_EMULATION) += drm_fb_helper.o
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index e1f5de2749130b3c800296e61ffa8b694b27a05f..9abe0a242f96f3a531a63c07b6ba62d03d13e057 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -594,7 +594,7 @@ drm_atomic_helper_check_planes(struct drm_device *dev,
 	struct drm_plane_state *plane_state;
 	int i, ret = 0;
 
-	ret = drm_atomic_helper_normalize_zpos(dev, state);
+	ret = drm_atomic_normalize_zpos(dev, state);
 	if (ret)
 		return ret;
 
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c
index f3c0942bd7568ab0221faa7d12f0e862ae81b7b4..0813b7e021be815316ee89b93cfe214984e5a81b 100644
--- a/drivers/gpu/drm/drm_blend.c
+++ b/drivers/gpu/drm/drm_blend.c
@@ -193,8 +193,7 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc,
 }
 
 /**
- * drm_atomic_helper_normalize_zpos - calculate normalized zpos values for all
- *				      crtcs
+ * drm_atomic_normalize_zpos - calculate normalized zpos values for all crtcs
  * @dev: DRM device
  * @state: atomic state of DRM device
  *
@@ -205,8 +204,8 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc,
  * RETURNS
  * Zero for success or -errno
  */
-int drm_atomic_helper_normalize_zpos(struct drm_device *dev,
-				     struct drm_atomic_state *state)
+int drm_atomic_normalize_zpos(struct drm_device *dev,
+			      struct drm_atomic_state *state)
 {
 	struct drm_crtc *crtc;
 	struct drm_crtc_state *crtc_state;
@@ -236,3 +235,4 @@ int drm_atomic_helper_normalize_zpos(struct drm_device *dev,
 	}
 	return 0;
 }
+EXPORT_SYMBOL(drm_atomic_normalize_zpos);
diff --git a/drivers/gpu/drm/drm_crtc_internal.h b/drivers/gpu/drm/drm_crtc_internal.h
index 99a8863536ac784041f1d25b8d7f832045ef8501..62efb9d09a85b39aa391d1836410677ac067d77a 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -160,5 +160,5 @@ int drm_modeset_register_all(struct drm_device *dev);
 void drm_modeset_unregister_all(struct drm_device *dev);
 
 /* drm_blend.c */
-int drm_atomic_helper_normalize_zpos(struct drm_device *dev,
-				     struct drm_atomic_state *state);
+int drm_atomic_normalize_zpos(struct drm_device *dev,
+			      struct drm_atomic_state *state);