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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2025 Svyatoslav Ryhel <clamor95@gmail.com>
*/
#ifndef _DM_OFNODE_GRAPH_H
#define _DM_OFNODE_GRAPH_H
#include <dm/of.h>
/**
* ofnode_graph_get_endpoint_count() - get the number of endpoints in a device ofnode
* @parent: ofnode to the device containing ports and endpoints
*
* Return: count of endpoint of this device ofnode
*/
unsigned int ofnode_graph_get_endpoint_count(ofnode parent);
/**
* ofnode_graph_get_port_count() - get the number of port in a device or ports ofnode
* @parent: ofnode to the device or ports node
*
* Return: count of port of this device or ports node
*/
unsigned int ofnode_graph_get_port_count(ofnode parent);
/**
* ofnode_graph_get_port_by_id() - get the port matching a given id
* @parent: parent ofnode
* @id: id of the port
*
* Return: ofnode in given port.
*/
ofnode ofnode_graph_get_port_by_id(ofnode parent, u32 id);
/**
* ofnode_graph_get_endpoint_by_regs() - get the endpoint matching a given id
* @parent: parent ofnode
* @reg_id: id of the port
* @id: id for the endpoint
*
* Return: ofnode in given endpoint or NULL if not found.
* reg and port_reg are ignored when they are -1.
*/
ofnode ofnode_graph_get_endpoint_by_regs(ofnode parent, u32 reg_id, u32 id);
/**
* ofnode_graph_get_remote_endpoint() - get remote endpoint node
* @endoint: ofnode of a local endpoint
*
* Return: Remote endpoint ofnode linked with local endpoint.
*/
ofnode ofnode_graph_get_remote_endpoint(ofnode endpoint);
/**
* ofnode_graph_get_port_parent() - get port's parent node
* @endpoint: ofnode of a local endpoint
*
* Return: device ofnode associated with endpoint
*/
ofnode ofnode_graph_get_port_parent(ofnode endpoint);
/**
* ofnode_graph_get_remote_port_parent() - get remote port's parent ofnode
* @endoint: ofnode of a local endpoint
*
* Return: device ofnode associated with endpoint linked to local endpoint.
*/
ofnode ofnode_graph_get_remote_port_parent(ofnode endpoint);
/**
* ofnode_graph_get_remote_port() - get remote port ofnode
* @endoint: ofnode of a local endpoint
*
* Return: port ofnode associated with remote endpoint node linked
* to local endpoint.
*/
ofnode ofnode_graph_get_remote_port(ofnode endpoint);
/**
* ofnode_graph_get_remote_node() - get remote parent ofnode for given port/endpoint
* @parent: parent ofnode containing graph port/endpoint
* @port: identifier (value of reg property) of the parent port ofnode
* @endpoint: identifier (value of reg property) of the endpoint ofnode
*
* Return: device ofnode associated with endpoint linked to local endpoint.
*/
ofnode ofnode_graph_get_remote_node(ofnode parent, u32 port, u32 endpoint);
#endif
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