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-rw-r--r--include/drm/drm_modeset_helper_vtables.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/drm/drm_modeset_helper_vtables.h b/include/drm/drm_modeset_helper_vtables.h
index 3e76ca805b0f..35e2a3a79fc5 100644
--- a/include/drm/drm_modeset_helper_vtables.h
+++ b/include/drm/drm_modeset_helper_vtables.h
@@ -1004,11 +1004,14 @@ struct drm_plane_helper_funcs {
* This function must not block for outstanding rendering, since it is
* called in the context of the atomic IOCTL even for async commits to
* be able to return any errors to userspace. Instead the recommended
- * way is to fill out the fence member of the passed-in
+ * way is to fill out the &drm_plane_state.fence of the passed-in
* &drm_plane_state. If the driver doesn't support native fences then
* equivalent functionality should be implemented through private
* members in the plane structure.
*
+ * Drivers which always have their buffers pinned should use
+ * drm_gem_fb_prepare_fb() for this hook.
+ *
* The helpers will call @cleanup_fb with matching arguments for every
* successful call to this hook.
*