diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b98e49112081..80cfe1cbeb99 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -554,7 +554,7 @@ EXPORT_SYMBOL(drm_encoder_cleanup);
 int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
 		   unsigned long possible_crtcs,
 		   const struct drm_plane_funcs *funcs,
-		   uint32_t *formats, uint32_t format_count)
+		   const uint32_t *formats, uint32_t format_count)
 {
 	mutex_lock(&dev->mode_config.mutex);
 
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index dd557272eca7..42c89b201ffd 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -828,7 +828,7 @@ extern int drm_plane_init(struct drm_device *dev,
 			  struct drm_plane *plane,
 			  unsigned long possible_crtcs,
 			  const struct drm_plane_funcs *funcs,
-			  uint32_t *formats, uint32_t format_count);
+			  const uint32_t *formats, uint32_t format_count);
 extern void drm_plane_cleanup(struct drm_plane *plane);
 
 extern void drm_encoder_cleanup(struct drm_encoder *encoder);