1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
 4 * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
 5 */
 6
 7#include <linux/err.h>
 8#include <linux/of.h>
 9#include <linux/of_graph.h>
10
11#include "omapdss.h"
12
13struct omap_dss_device *
14omapdss_of_find_connected_device(struct device_node *node, unsigned int port)
15{
16	struct device_node *remote_node;
17	struct omap_dss_device *dssdev;
18
19	remote_node = of_graph_get_remote_node(node, port, 0);
20	if (!remote_node)
21		return NULL;
22
23	dssdev = omapdss_find_device_by_node(remote_node);
24	of_node_put(remote_node);
25
26	return dssdev ? dssdev : ERR_PTR(-EPROBE_DEFER);
27}
28EXPORT_SYMBOL_GPL(omapdss_of_find_connected_device);