fwnode_get_child_node_count
EXPORT_SYMBOL_GPL(fwnode_get_child_node_count);
num_subleds = fwnode_get_child_node_count(mc_node);
count = fwnode_get_child_node_count(mcnode);
port->pd_count = fwnode_get_child_node_count(capabilities);
unsigned int fwnode_get_child_node_count(const struct fwnode_handle *fwnode);
return fwnode_get_child_node_count(dev_fwnode(dev));