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Diffstat (limited to 'include/dm/ofnode_graph.h')
-rw-r--r-- | include/dm/ofnode_graph.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/dm/ofnode_graph.h b/include/dm/ofnode_graph.h new file mode 100644 index 00000000000..908c990a3f3 --- /dev/null +++ b/include/dm/ofnode_graph.h @@ -0,0 +1,90 @@ +/* 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 |