LXR linux/include/linux/reset.h

   1#ifndef _LINUX_RESET_H_
   2#define _LINUX_RESET_H_
   3
   4struct device;
   5struct device_node;
   6struct reset_control;
   7
   8#ifdef CONFIG_RESET_CONTROLLER
   9
  10int reset_control_reset(struct reset_control *rstc);
  11int reset_control_assert(struct reset_control *rstc);
  12int reset_control_deassert(struct reset_control *rstc);
  13int reset_control_status(struct reset_control *rstc);
  14
  15struct reset_control *reset_control_get(struct device *dev, const char *id);
  16void reset_control_put(struct reset_control *rstc);
  17struct reset_control *devm_reset_control_get(struct device *dev, const char *id);
  18
  19int __must_check device_reset(struct device *dev);
  20
  21static inline int device_reset_optional(struct device *dev)
  22{
  23        return device_reset(dev);
  24}
  25
  26static inline struct reset_control *reset_control_get_optional(
  27                                        struct device *dev, const char *id)
  28{
  29        return reset_control_get(dev, id);
  30}
  31
  32static inline struct reset_control *devm_reset_control_get_optional(
  33                                        struct device *dev, const char *id)
  34{
  35        return devm_reset_control_get(dev, id);
  36}
  37
  38struct reset_control *of_reset_control_get(struct device_node *node,
  39                                           const char *id);
  40
  41#else
  42
  43static inline int reset_control_reset(struct reset_control *rstc)
  44{
  45        WARN_ON(1);
  46        return 0;
  47}
  48
  49static inline int reset_control_assert(struct reset_control *rstc)
  50{
  51        WARN_ON(1);
  52        return 0;
  53}
  54
  55static inline int reset_control_deassert(struct reset_control *rstc)
  56{
  57        WARN_ON(1);
  58        return 0;
  59}
  60
  61static inline int reset_control_status(struct reset_control *rstc)
  62{
  63        WARN_ON(1);
  64        return 0;
  65}
  66
  67static inline void reset_control_put(struct reset_control *rstc)
  68{
  69        WARN_ON(1);
  70}
  71
  72static inline int device_reset_optional(struct device *dev)
  73{
  74        return -ENOSYS;
  75}
  76
  77static inline struct reset_control *reset_control_get_optional(
  78                                        struct device *dev, const char *id)
  79{
  80        return ERR_PTR(-ENOSYS);
  81}
  82
  83static inline struct reset_control *devm_reset_control_get_optional(
  84                                        struct device *dev, const char *id)
  85{
  86        return ERR_PTR(-ENOSYS);
  87}
  88
  89static inline struct reset_control *of_reset_control_get(
  90                                struct device_node *node, const char *id)
  91{
  92        return ERR_PTR(-ENOSYS);
  93}
  94
  95#endif /* CONFIG_RESET_CONTROLLER */
  96
  97#endif
  98