mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 03:13:59 +00:00
64b60e096f
The helper is factored out of of_get_gpio(). Will be used by the QE pin multiplexing functions (they need to parse the gpios = <> too). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
79 lines
3.3 KiB
C
79 lines
3.3 KiB
C
#ifndef _LINUX_OF_H
|
|
#define _LINUX_OF_H
|
|
/*
|
|
* Definitions for talking to the Open Firmware PROM on
|
|
* Power Macintosh and other computers.
|
|
*
|
|
* Copyright (C) 1996-2005 Paul Mackerras.
|
|
*
|
|
* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
|
|
* Updates for SPARC64 by David S. Miller
|
|
* Derived from PowerPC and Sparc prom.h files by Stephen Rothwell, IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#include <linux/types.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
#include <asm/prom.h>
|
|
|
|
/* flag descriptions */
|
|
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
|
|
#define OF_DETACHED 2 /* node has been detached from the device tree */
|
|
|
|
#define OF_BAD_ADDR ((u64)-1)
|
|
|
|
extern struct device_node *of_find_node_by_name(struct device_node *from,
|
|
const char *name);
|
|
#define for_each_node_by_name(dn, name) \
|
|
for (dn = of_find_node_by_name(NULL, name); dn; \
|
|
dn = of_find_node_by_name(dn, name))
|
|
extern struct device_node *of_find_node_by_type(struct device_node *from,
|
|
const char *type);
|
|
#define for_each_node_by_type(dn, type) \
|
|
for (dn = of_find_node_by_type(NULL, type); dn; \
|
|
dn = of_find_node_by_type(dn, type))
|
|
extern struct device_node *of_find_compatible_node(struct device_node *from,
|
|
const char *type, const char *compat);
|
|
#define for_each_compatible_node(dn, type, compatible) \
|
|
for (dn = of_find_compatible_node(NULL, type, compatible); dn; \
|
|
dn = of_find_compatible_node(dn, type, compatible))
|
|
extern struct device_node *of_find_matching_node(struct device_node *from,
|
|
const struct of_device_id *matches);
|
|
#define for_each_matching_node(dn, matches) \
|
|
for (dn = of_find_matching_node(NULL, matches); dn; \
|
|
dn = of_find_matching_node(dn, matches))
|
|
extern struct device_node *of_find_node_by_path(const char *path);
|
|
extern struct device_node *of_find_node_by_phandle(phandle handle);
|
|
extern struct device_node *of_get_parent(const struct device_node *node);
|
|
extern struct device_node *of_get_next_parent(struct device_node *node);
|
|
extern struct device_node *of_get_next_child(const struct device_node *node,
|
|
struct device_node *prev);
|
|
#define for_each_child_of_node(parent, child) \
|
|
for (child = of_get_next_child(parent, NULL); child != NULL; \
|
|
child = of_get_next_child(parent, child))
|
|
|
|
extern struct property *of_find_property(const struct device_node *np,
|
|
const char *name,
|
|
int *lenp);
|
|
extern int of_device_is_compatible(const struct device_node *device,
|
|
const char *);
|
|
extern int of_device_is_available(const struct device_node *device);
|
|
extern const void *of_get_property(const struct device_node *node,
|
|
const char *name,
|
|
int *lenp);
|
|
extern int of_n_addr_cells(struct device_node *np);
|
|
extern int of_n_size_cells(struct device_node *np);
|
|
extern const struct of_device_id *of_match_node(
|
|
const struct of_device_id *matches, const struct device_node *node);
|
|
extern int of_modalias_node(struct device_node *node, char *modalias, int len);
|
|
extern int of_parse_phandles_with_args(struct device_node *np,
|
|
const char *list_name, const char *cells_name, int index,
|
|
struct device_node **out_node, const void **out_args);
|
|
|
|
#endif /* _LINUX_OF_H */
|