1 | /* |
2 | * System Control Driver |
3 | * |
4 | * Copyright (C) 2012 Freescale Semiconductor, Inc. |
5 | * Copyright (C) 2012 Linaro Ltd. |
6 | * |
7 | * Author: Dong Aisheng <dong.aisheng@linaro.org> |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | */ |
14 | |
15 | #ifndef __LINUX_MFD_SYSCON_H__ |
16 | #define __LINUX_MFD_SYSCON_H__ |
17 | |
18 | #include <linux/err.h> |
19 | #include <linux/errno.h> |
20 | |
21 | struct device_node; |
22 | |
23 | #ifdef CONFIG_MFD_SYSCON |
24 | extern struct regmap *syscon_node_to_regmap(struct device_node *np); |
25 | extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s); |
26 | extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s); |
27 | extern struct regmap *syscon_regmap_lookup_by_phandle( |
28 | struct device_node *np, |
29 | const char *property); |
30 | #else |
31 | static inline struct regmap *syscon_node_to_regmap(struct device_node *np) |
32 | { |
33 | return ERR_PTR(-ENOTSUPP); |
34 | } |
35 | |
36 | static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s) |
37 | { |
38 | return ERR_PTR(-ENOTSUPP); |
39 | } |
40 | |
41 | static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s) |
42 | { |
43 | return ERR_PTR(-ENOTSUPP); |
44 | } |
45 | |
46 | static inline struct regmap *syscon_regmap_lookup_by_phandle( |
47 | struct device_node *np, |
48 | const char *property) |
49 | { |
50 | return ERR_PTR(-ENOTSUPP); |
51 | } |
52 | #endif |
53 | |
54 | #endif /* __LINUX_MFD_SYSCON_H__ */ |
55 | |