2 * System Control Driver
4 * Copyright (C) 2012 Freescale Semiconductor, Inc.
5 * Copyright (C) 2012 Linaro Ltd.
7 * Author: Dong Aisheng <dong.aisheng@linaro.org>
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.
15 #ifndef __LINUX_MFD_SYSCON_H__
16 #define __LINUX_MFD_SYSCON_H__
20 #ifdef CONFIG_MFD_SYSCON
21 extern struct regmap *syscon_node_to_regmap(struct device_node *np);
22 extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
23 extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
24 extern struct regmap *syscon_regmap_lookup_by_phandle(
25 struct device_node *np,
26 const char *property);
28 static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
30 return ERR_PTR(-ENOSYS);
33 static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
35 return ERR_PTR(-ENOSYS);
38 static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
40 return ERR_PTR(-ENOSYS);
43 static inline struct regmap *syscon_regmap_lookup_by_phandle(
44 struct device_node *np,
47 return ERR_PTR(-ENOSYS);
51 #endif /* __LINUX_MFD_SYSCON_H__ */