diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 419ac313c36faf42a3c95c778a3cd9a9be7d70bd..3bf9276f5bcf756037eb8a1cec3259702983b7b8 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -79,7 +79,7 @@ static unsigned int drm_num_planes(struct drm_device *dev)
  * Zero on success, error code on failure.
  */
 int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane,
-			     unsigned long possible_crtcs,
+			     uint32_t possible_crtcs,
 			     const struct drm_plane_funcs *funcs,
 			     const uint32_t *formats, unsigned int format_count,
 			     enum drm_plane_type type,
@@ -196,7 +196,7 @@ void drm_plane_unregister_all(struct drm_device *dev)
  * Zero on success, error code on failure.
  */
 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
-		   unsigned long possible_crtcs,
+		   uint32_t possible_crtcs,
 		   const struct drm_plane_funcs *funcs,
 		   const uint32_t *formats, unsigned int format_count,
 		   bool is_primary)
diff --git a/include/drm/drm_plane.h b/include/drm/drm_plane.h
index 5b38eb94783ba78d2d0fde4fec1264a38a2d6ba4..db3bbdeb36d5422dedd5e3cb444aabb7825c7b70 100644
--- a/include/drm/drm_plane.h
+++ b/include/drm/drm_plane.h
@@ -513,7 +513,7 @@ struct drm_plane {
 extern __printf(8, 9)
 int drm_universal_plane_init(struct drm_device *dev,
 			     struct drm_plane *plane,
-			     unsigned long possible_crtcs,
+			     uint32_t possible_crtcs,
 			     const struct drm_plane_funcs *funcs,
 			     const uint32_t *formats,
 			     unsigned int format_count,
@@ -521,7 +521,7 @@ int drm_universal_plane_init(struct drm_device *dev,
 			     const char *name, ...);
 extern int drm_plane_init(struct drm_device *dev,
 			  struct drm_plane *plane,
-			  unsigned long possible_crtcs,
+			  uint32_t possible_crtcs,
 			  const struct drm_plane_funcs *funcs,
 			  const uint32_t *formats, unsigned int format_count,
 			  bool is_primary);