diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index d966afa7ecae..f16bb92db577 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -26,6 +26,7 @@
 #include <linux/list.h>
 #include <drm/drmP.h>
 #include <drm/drm_rect.h>
+#include <drm/drm_plane_helper.h>
 
 #define SUBPIXEL_MASK 0xffff
 
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 09824becee3e..c5e7ab9503c8 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -42,7 +42,7 @@ extern int drm_primary_helper_disable(struct drm_plane *plane);
 extern void drm_primary_helper_destroy(struct drm_plane *plane);
 extern const struct drm_plane_funcs drm_primary_helper_funcs;
 extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
-							 uint32_t *formats,
+							 const uint32_t *formats,
 							 int num_formats);