drm/connector: Document destroy hook in drmm init functions

Document that the drm_connector_funcs.destroy hook must be NULL in
drmm_connector_init() and drmm_connector_hdmi_init().
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20240804170551.33971-2-jose.exposito89@gmail.com

drivers/gpu/drm/drm_connector.c

@@ -426,6 +426,8 @@ static void drm_connector_cleanup_action(struct drm_device *dev,
  *
  * The connector structure should be allocated with drmm_kzalloc().
  *
+ * The @drm_connector_funcs.destroy hook must be NULL.
+ *
  * Returns:
  * Zero on success, error code on failure.
  */
@@ -474,6 +476,8 @@ EXPORT_SYMBOL(drmm_connector_init);
  *
  * The connector structure should be allocated with drmm_kzalloc().
  *
+ * The @drm_connector_funcs.destroy hook must be NULL.
+ *
  * Returns:
  * Zero on success, error code on failure.
  */