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 syscon_node_to_regmap(struct device_node * np)31static inline struct regmap *syscon_node_to_regmap(struct device_node *np) 32 { 33 return ERR_PTR(-ENOTSUPP); 34 } 35 syscon_regmap_lookup_by_compatible(const char * s)36static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s) 37 { 38 return ERR_PTR(-ENOTSUPP); 39 } 40 syscon_regmap_lookup_by_pdevname(const char * s)41static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s) 42 { 43 return ERR_PTR(-ENOTSUPP); 44 } 45 syscon_regmap_lookup_by_phandle(struct device_node * np,const char * property)46static 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