root/include/linux/mfd/syscon.h

INCLUDED FROM

DEFINITIONS

1. device_node_to_regmap
2. syscon_node_to_regmap
3. syscon_regmap_lookup_by_compatible
4. syscon_regmap_lookup_by_phandle

   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 *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);
  26 #else
  27 static inline struct regmap *device_node_to_regmap(struct device_node *np)
  28 {
  29         return ERR_PTR(-ENOTSUPP);
  30 }
  31 
  32 static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
  33 {
  34         return ERR_PTR(-ENOTSUPP);
  35 }
  36 
  37 static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
  38 {
  39         return ERR_PTR(-ENOTSUPP);
  40 }
  41 
  42 static inline struct regmap *syscon_regmap_lookup_by_phandle(
  43                                         struct device_node *np,
  44                                         const char *property)
  45 {
  46         return ERR_PTR(-ENOTSUPP);
  47 }
  48 #endif
  49 
  50 #endif /* __LINUX_MFD_SYSCON_H__ */