1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * System Control Driver
5 * Copyright (C) 2012 Freescale Semiconductor, Inc.
6 * Copyright (C) 2012 Linaro Ltd.
11 #ifndef __LINUX_MFD_SYSCON_H__
12 #define __LINUX_MFD_SYSCON_H__
14 #include <linux/err.h>
15 #include <linux/errno.h>
19 #ifdef CONFIG_MFD_SYSCON
20 extern struct regmap *device_node_to_regmap(struct device_node *np);
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_phandle(
24 struct device_node *np,
25 const char *property);
27 static inline struct regmap *device_node_to_regmap(struct device_node *np)
29 return ERR_PTR(-ENOTSUPP);
32 static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
34 return ERR_PTR(-ENOTSUPP);
37 static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
39 return ERR_PTR(-ENOTSUPP);
42 static inline struct regmap *syscon_regmap_lookup_by_phandle(
43 struct device_node *np,
46 return ERR_PTR(-ENOTSUPP);
50 #endif /* __LINUX_MFD_SYSCON_H__ */