include/asm-powerpc/of_platform.h

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