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 extern struct regmap *syscon_node_to_regmap(struct device_node *np);
21 extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
22 extern struct regmap *syscon_regmap_lookup_by_phandle(
23 struct device_node *np,
24 const char *property);
25 #else
26 static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
27 {
28 return ERR_PTR(-ENOTSUPP);
29 }
30
31 static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
32 {
33 return ERR_PTR(-ENOTSUPP);
34 }
35
36 static inline struct regmap *syscon_regmap_lookup_by_phandle(
37 struct device_node *np,
38 const char *property)
39 {
40 return ERR_PTR(-ENOTSUPP);
41 }
42 #endif
43
44 #endif /* __LINUX_MFD_SYSCON_H__ */
45
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.