path: root/drivers/of/property.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * drivers/of/property.c - Procedures for accessing and interpreting
 *			   Devicetree properties and graphs.
 *
 * Initially created by copying procedures from drivers/of/base.c. This
 * file contains the OF property as well as the OF graph interface
 * functions.
 *
 * Paul Mackerras	August 1996.
 * Copyright (C) 1996-2005 Paul Mackerras.
 *
 *  Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner.
 *    {engebret|bergner}@us.ibm.com
 *
 *  Adapted for sparc and sparc64 by David S. Miller davem@davemloft.net
 *
 *  Reconsolidated from arch/x/kernel/prom.c by Stephen Rothwell and
 *  Grant Likely.
 */

#define pr_fmt(fmt)	"OF: " fmt

#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/of_graph.h>
#include <linux/of_irq.h>
#include <linux/string.h>
#include <linux/moduleparam.h>

#include "of_private.h"

/**
 * of_graph_is_present() - check graph's presence
 * @node: pointer to device_node containing graph port
 *
 * Return: True if @node has a port or ports (with a port) sub-node,
 * false otherwise.
 */
bool of_graph_is_present(const struct device_node *node)
{