include/linux/reset.h

   1 #ifndef _LINUX_RESET_H_
   2 #define _LINUX_RESET_H_
   3
   4 struct device;
   5 struct reset_control;
   6
   7 #ifdef CONFIG_RESET_CONTROLLER
   8
   9 int reset_control_reset(struct reset_control *rstc);
  10 int reset_control_assert(struct reset_control *rstc);
  11 int reset_control_deassert(struct reset_control *rstc);
  12
  13 struct reset_control *reset_control_get(struct device *dev, const char *id);
  14 void reset_control_put(struct reset_control *rstc);
  15 struct reset_control *devm_reset_control_get(struct device *dev, const char *id);
  16
  17 int __must_check device_reset(struct device *dev);
  18
  19 static inline int device_reset_optional(struct device *dev)
  20 {
  21         return device_reset(dev);
  22 }
  23
  24 static inline struct reset_control *reset_control_get_optional(
  25                                         struct device *dev, const char *id)
  26 {
  27         return reset_control_get(dev, id);
  28 }
  29
  30 static inline struct reset_control *devm_reset_control_get_optional(
  31                                         struct device *dev, const char *id)
  32 {
  33         return devm_reset_control_get(dev, id);
  34 }
  35
  36 #else
  37
  38 static inline int reset_control_reset(struct reset_control *rstc)
  39 {
  40         WARN_ON(1);
  41         return 0;
  42 }
  43
  44 static inline int reset_control_assert(struct reset_control *rstc)
  45 {
  46         WARN_ON(1);
  47         return 0;
  48 }
  49
  50 static inline int reset_control_deassert(struct reset_control *rstc)
  51 {
  52         WARN_ON(1);
  53         return 0;
  54 }
  55
  56 static inline void reset_control_put(struct reset_control *rstc)
  57 {
  58         WARN_ON(1);
  59 }
  60
  61 static inline int device_reset_optional(struct device *dev)
  62 {
  63         return -ENOSYS;
  64 }
  65
  66 static inline struct reset_control *reset_control_get_optional(
  67                                         struct device *dev, const char *id)
  68 {
  69         return ERR_PTR(-ENOSYS);
  70 }
  71
  72 static inline struct reset_control *devm_reset_control_get_optional(
  73                                         struct device *dev, const char *id)
  74 {
  75         return ERR_PTR(-ENOSYS);
  76 }
  77
  78 #endif /* CONFIG_RESET_CONTROLLER */
  79
  80 #endif