include/linux/of_platform.h

   1 #ifndef _LINUX_OF_PLATFORM_H
   2 #define _LINUX_OF_PLATFORM_H
   3 /*
   4  *    Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
   5  *                       <benh@kernel.crashing.org>
   6  *
   7  *  This program is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU General Public License
   9  *  as published by the Free Software Foundation; either version
  10  *  2 of the License, or (at your option) any later version.
  11  *
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/device.h>
  16 #include <linux/mod_devicetable.h>
  17 #include <linux/pm.h>
  18 #include <linux/of_device.h>
  19
  20 /*
  21  * The of_platform_bus_type is a bus type used by drivers that do not
  22  * attach to a macio or similar bus but still use OF probing
  23  * mechanism
  24  */
  25 extern struct bus_type of_platform_bus_type;
  26
  27 /*
  28  * An of_platform_driver driver is attached to a basic of_device on
  29  * the "platform bus" (of_platform_bus_type).
  30  */
  31 struct of_platform_driver
  32 {
  33         const char              *name;
  34         const struct of_device_id       *match_table;
  35         struct module           *owner;
  36
  37         int     (*probe)(struct of_device* dev,
  38                          const struct of_device_id *match);
  39         int     (*remove)(struct of_device* dev);
  40
  41         int     (*suspend)(struct of_device* dev, pm_message_t state);
  42         int     (*resume)(struct of_device* dev);
  43         int     (*shutdown)(struct of_device* dev);
  44
  45         struct device_driver    driver;
  46 };
  47 #define to_of_platform_driver(drv) \
  48         container_of(drv,struct of_platform_driver, driver)
  49
  50 extern int of_register_driver(struct of_platform_driver *drv,
  51                               struct bus_type *bus);
  52 extern void of_unregister_driver(struct of_platform_driver *drv);
  53
  54 /* Platform drivers register/unregister */
  55 static inline int of_register_platform_driver(struct of_platform_driver *drv)
  56 {
  57         return of_register_driver(drv, &of_platform_bus_type);
  58 }
  59 static inline void of_unregister_platform_driver(struct of_platform_driver *drv)
  60 {
  61         of_unregister_driver(drv);
  62 }
  63
  64 #include <asm/of_platform.h>
  65
  66 extern struct of_device *of_find_device_by_node(struct device_node *np);
  67
  68 extern int of_bus_type_init(struct bus_type *bus, const char *name);
  69
  70 #endif  /* _LINUX_OF_PLATFORM_H */