priv = spi_controller_get_devdata(ctlr);
priv->spi = spi;
+ /*
+ * Increase lockdep class as these lock are taken while the parent bus
+ * already holds their instance's lock.
+ */
+ lockdep_set_subclass(&ctlr->io_mutex, 1);
+ lockdep_set_subclass(&ctlr->add_lock, 1);
+
priv->mux = devm_mux_control_get(&spi->dev, NULL);
if (IS_ERR(priv->mux)) {
ret = dev_err_probe(&spi->dev, PTR_ERR(priv->mux),