diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
index 72db38ef4f11dd2c5b37417ffba36f1000d10283..378360b23ea0ebb0f5af26df3191f8667f833468 100644
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ b/drivers/gpu/drm/drm_fb_cma_helper.c
@@ -133,7 +133,7 @@ static struct drm_framebuffer_funcs drm_fb_cma_funcs = {
 static struct drm_fb_cma *drm_fb_cma_alloc(struct drm_device *dev,
 	const struct drm_mode_fb_cmd2 *mode_cmd,
 	struct drm_gem_cma_object **obj,
-	unsigned int num_planes, struct drm_framebuffer_funcs *funcs)
+	unsigned int num_planes, const struct drm_framebuffer_funcs *funcs)
 {
 	struct drm_fb_cma *fb_cma;
 	int ret;
@@ -350,7 +350,7 @@ static void drm_fbdev_cma_defio_fini(struct fb_info *fbi)
  */
 int drm_fbdev_cma_create_with_funcs(struct drm_fb_helper *helper,
 	struct drm_fb_helper_surface_size *sizes,
-	struct drm_framebuffer_funcs *funcs)
+	const struct drm_framebuffer_funcs *funcs)
 {
 	struct drm_fbdev_cma *fbdev_cma = to_fbdev_cma(helper);
 	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
index c6d9c9c55794ce8fa3db6d0fe5e62a9c6c1c4766..ac38a05e2dc981f83ad6b7e455419626474aa8e6 100644
--- a/include/drm/drm_fb_cma_helper.h
+++ b/include/drm/drm_fb_cma_helper.h
@@ -25,7 +25,7 @@ void drm_fbdev_cma_restore_mode(struct drm_fbdev_cma *fbdev_cma);
 void drm_fbdev_cma_hotplug_event(struct drm_fbdev_cma *fbdev_cma);
 int drm_fbdev_cma_create_with_funcs(struct drm_fb_helper *helper,
 	struct drm_fb_helper_surface_size *sizes,
-	struct drm_framebuffer_funcs *funcs);
+	const struct drm_framebuffer_funcs *funcs);
 
 void drm_fb_cma_destroy(struct drm_framebuffer *fb);
 int drm_fb_cma_create_handle(struct drm_framebuffer *fb,