1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * System Control Driver |
4 | * |
5 | * Copyright (C) 2012 Freescale Semiconductor, Inc. |
6 | * Copyright (C) 2012 Linaro Ltd. |
7 | * |
8 | * Author: Dong Aisheng <dong.aisheng@linaro.org> |
9 | */ |
10 | |
11 | #ifndef __LINUX_MFD_SYSCON_H__ |
12 | #define __LINUX_MFD_SYSCON_H__ |
13 | |
14 | #include <linux/err.h> |
15 | #include <linux/errno.h> |
16 | |
17 | struct device_node; |
18 | |
19 | #ifdef CONFIG_MFD_SYSCON |
20 | struct regmap *device_node_to_regmap(struct device_node *np); |
21 | struct regmap *syscon_node_to_regmap(struct device_node *np); |
22 | struct regmap *syscon_regmap_lookup_by_compatible(const char *s); |
23 | struct regmap *syscon_regmap_lookup_by_phandle(struct device_node *np, |
24 | const char *property); |
25 | struct regmap *syscon_regmap_lookup_by_phandle_args(struct device_node *np, |
26 | const char *property, |
27 | int arg_count, |
28 | unsigned int *out_args); |
29 | struct regmap *syscon_regmap_lookup_by_phandle_optional(struct device_node *np, |
30 | const char *property); |
31 | #else |
32 | static inline struct regmap *device_node_to_regmap(struct device_node *np) |
33 | { |
34 | return ERR_PTR(-ENOTSUPP); |
35 | } |
36 | |
37 | static inline struct regmap *syscon_node_to_regmap(struct device_node *np) |
38 | { |
39 | return ERR_PTR(-ENOTSUPP); |
40 | } |
41 | |
42 | static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s) |
43 | { |
44 | return ERR_PTR(-ENOTSUPP); |
45 | } |
46 | |
47 | static inline struct regmap *syscon_regmap_lookup_by_phandle( |
48 | struct device_node *np, |
49 | const char *property) |
50 | { |
51 | return ERR_PTR(-ENOTSUPP); |
52 | } |
53 | |
54 | static inline struct regmap *syscon_regmap_lookup_by_phandle_args( |
55 | struct device_node *np, |
56 | const char *property, |
57 | int arg_count, |
58 | unsigned int *out_args) |
59 | { |
60 | return ERR_PTR(-ENOTSUPP); |
61 | } |
62 | |
63 | static inline struct regmap *syscon_regmap_lookup_by_phandle_optional( |
64 | struct device_node *np, |
65 | const char *property) |
66 | { |
67 | return NULL; |
68 | } |
69 | |
70 | #endif |
71 | |
72 | #endif /* __LINUX_MFD_SYSCON_H__ */ |
73 | |