1 #ifndef _LINUX_OF_PRIVATE_H 2 #define _LINUX_OF_PRIVATE_H 3 /* 4 * Private symbols used by OF support code 5 * 6 * Paul Mackerras August 1996. 7 * Copyright (C) 1996-2005 Paul Mackerras. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * as published by the Free Software Foundation; either version 12 * 2 of the License, or (at your option) any later version. 13 */ 14 15 /** 16 * struct alias_prop - Alias property in 'aliases' node 17 * @link: List node to link the structure in aliases_lookup list 18 * @alias: Alias property name 19 * @np: Pointer to device_node that the alias stands for 20 * @id: Index value from end of alias name 21 * @stem: Alias string without the index 22 * 23 * The structure represents one alias property of 'aliases' node as 24 * an entry in aliases_lookup list. 25 */ 26 struct alias_prop { 27 struct list_head link; 28 const char *alias; 29 struct device_node *np; 30 int id; 31 char stem[0]; 32 }; 33 34 extern struct mutex of_mutex; 35 extern struct list_head aliases_lookup; 36 extern struct kset *of_kset; 37 38 39 static inline struct device_node *kobj_to_device_node(struct kobject *kobj) 40 { 41 return container_of(kobj, struct device_node, kobj); 42 } 43 44 #if defined(CONFIG_OF_DYNAMIC) 45 extern int of_property_notify(int action, struct device_node *np, 46 struct property *prop, struct property *old_prop); 47 extern void of_node_release(struct kobject *kobj); 48 #else /* CONFIG_OF_DYNAMIC */ 49 static inline int of_property_notify(int action, struct device_node *np, 50 struct property *prop, struct property *old_prop) 51 { 52 return 0; 53 } 54 #endif /* CONFIG_OF_DYNAMIC */ 55 56 /** 57 * General utilities for working with live trees. 58 * 59 * All functions with two leading underscores operate 60 * without taking node references, so you either have to 61 * own the devtree lock or work on detached trees only. 62 */ 63 struct property *__of_prop_dup(const struct property *prop, gfp_t allocflags); 64 __printf(2, 3) struct device_node *__of_node_dup(const struct device_node *np, const char *fmt, ...); 65 66 extern const void *__of_get_property(const struct device_node *np, 67 const char *name, int *lenp); 68 extern int __of_add_property(struct device_node *np, struct property *prop); 69 extern int __of_add_property_sysfs(struct device_node *np, 70 struct property *prop); 71 extern int __of_remove_property(struct device_node *np, struct property *prop); 72 extern void __of_remove_property_sysfs(struct device_node *np, 73 struct property *prop); 74 extern int __of_update_property(struct device_node *np, 75 struct property *newprop, struct property **oldprop); 76 extern void __of_update_property_sysfs(struct device_node *np, 77 struct property *newprop, struct property *oldprop); 78 79 extern void __of_attach_node(struct device_node *np); 80 extern int __of_attach_node_sysfs(struct device_node *np); 81 extern void __of_detach_node(struct device_node *np); 82 extern void __of_detach_node_sysfs(struct device_node *np); 83 84 /* iterators for transactions, used for overlays */ 85 /* forward iterator */ 86 #define for_each_transaction_entry(_oft, _te) \ 87 list_for_each_entry(_te, &(_oft)->te_list, node) 88 89 /* reverse iterator */ 90 #define for_each_transaction_entry_reverse(_oft, _te) \ 91 list_for_each_entry_reverse(_te, &(_oft)->te_list, node) 92 93 #endif /* _LINUX_OF_PRIVATE_H */ 94