| ========================== | 
 | Regulator Driver Interface | 
 | ========================== | 
 |  | 
 | The regulator driver interface is relatively simple and designed to allow | 
 | regulator drivers to register their services with the core framework. | 
 |  | 
 |  | 
 | Registration | 
 | ============ | 
 |  | 
 | Drivers can register a regulator by calling:: | 
 |  | 
 |   struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc, | 
 | 					   const struct regulator_config *config); | 
 |  | 
 | This will register the regulator's capabilities and operations to the regulator | 
 | core. | 
 |  | 
 | Regulators can be unregistered by calling:: | 
 |  | 
 |   void regulator_unregister(struct regulator_dev *rdev); | 
 |  | 
 |  | 
 | Regulator Events | 
 | ================ | 
 |  | 
 | Regulators can send events (e.g. overtemperature, undervoltage, etc) to | 
 | consumer drivers by calling:: | 
 |  | 
 |   int regulator_notifier_call_chain(struct regulator_dev *rdev, | 
 | 				    unsigned long event, void *data); |