of_get_next_child_with_prefix
of_get_next_child_with_prefix(priv->dev->of_node, NULL, "nand");
of_get_next_child_with_prefix(this->pdev->dev.of_node, NULL, "nand");
of_get_next_child_with_prefix(pdev->dev.of_node, NULL, "nand");
EXPORT_SYMBOL(of_get_next_child_with_prefix);
of_get_next_child_with_prefix(parent, NULL, prefix); \
child = of_get_next_child_with_prefix(parent, child, prefix))
extern struct device_node *of_get_next_child_with_prefix(const struct device_node *node,