projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fd9fdb78 PZ |
1 | /* |
| 2 | * OF graph binding parsing helpers | |
| 3 | * | |
| 4 | * Copyright (C) 2012 - 2013 Samsung Electronics Co., Ltd. | |
| 5 | * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> | |
| 6 | * | |
| 7 | * Copyright (C) 2012 Renesas Electronics Corp. | |
| 8 | * Author: Guennadi Liakhovetski <g.liakhovetski@gmx.de> | |
| 9 | * | |
| 10 | * This program is free software; you can redistribute it and/or modify | |
| 11 | * it under the terms of version 2 of the GNU General Public License as | |
| 12 | * published by the Free Software Foundation. | |
| 13 | */ | |
| 14 | #ifndef __LINUX_OF_GRAPH_H | |
| 15 | #define __LINUX_OF_GRAPH_H | |
| 16 | ||
| f2a575f6 PZ |
17 | /** |
| 18 | * struct of_endpoint - the OF graph endpoint data structure | |
| 19 | * @port: identifier (value of reg property) of a port this endpoint belongs to | |
| 20 | * @id: identifier (value of reg property) of this endpoint | |
| 21 | * @local_node: pointer to device_node of this endpoint | |
| 22 | */ | |
| 23 | struct of_endpoint { | |
| 24 | unsigned int port; | |
| 25 | unsigned int id; | |
| 26 | const struct device_node *local_node; | |
| 27 | }; | |
| 28 | ||
| fd9fdb78 | 29 | #ifdef CONFIG_OF |
| f2a575f6 PZ |
30 | int of_graph_parse_endpoint(const struct device_node *node, |
| 31 | struct of_endpoint *endpoint); | |
| fd9fdb78 PZ |
32 | struct device_node *of_graph_get_next_endpoint(const struct device_node *parent, |
| 33 | struct device_node *previous); | |
| 34 | struct device_node *of_graph_get_remote_port_parent( | |
| 35 | const struct device_node *node); | |
| 36 | struct device_node *of_graph_get_remote_port(const struct device_node *node); | |
| 37 | #else | |
| 38 | ||
| f2a575f6 | 39 | static inline int of_graph_parse_endpoint(const struct device_node *node, |
| 00fd9619 | 40 | struct of_endpoint *endpoint) |
| f2a575f6 PZ |
41 | { |
| 42 | return -ENOSYS; | |
| 43 | } | |
| 44 | ||
| fd9fdb78 PZ |
45 | static inline struct device_node *of_graph_get_next_endpoint( |
| 46 | const struct device_node *parent, | |
| 47 | struct device_node *previous) | |
| 48 | { | |
| 49 | return NULL; | |
| 50 | } | |
| 51 | ||
| 52 | static inline struct device_node *of_graph_get_remote_port_parent( | |
| 53 | const struct device_node *node) | |
| 54 | { | |
| 55 | return NULL; | |
| 56 | } | |
| 57 | ||
| 58 | static inline struct device_node *of_graph_get_remote_port( | |
| 59 | const struct device_node *node) | |
| 60 | { | |
| 61 | return NULL; | |
| 62 | } | |
| 63 | ||
| 64 | #endif /* CONFIG_OF */ | |
| 65 | ||
| 66 | #endif /* __LINUX_OF_GRAPH_H */ |