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 #ifdef CONFIG_OF_DEVICE
  15 #include <linux/module.h>
  16 #include <linux/device.h>
  17 #include <linux/mod_devicetable.h>
  18 #include <linux/pm.h>
  19 #include <linux/of_device.h>
  20 #include <linux/platform_device.h>
  21
  22 /**
  23  * of_platform_driver - Legacy of-aware driver for platform devices.
  24  *
  25  * An of_platform_driver driver is attached to a basic platform_device on
  26  * ether the "platform bus" (platform_bus_type), or the ibm ebus
  27  * (ibmebus_bus_type).
  28  *
  29  * of_platform_driver is being phased out when used with the platform_bus_type,
  30  * and regular platform_drivers should be used instead.  When the transition
  31  * is complete, only ibmebus will be using this structure, and the
  32  * platform_driver member of this structure will be removed.
  33  */
  34 struct of_platform_driver
  35 {
  36         int     (*probe)(struct platform_device* dev,
  37                          const struct of_device_id *match);
  38         int     (*remove)(struct platform_device* dev);
  39
  40         int     (*suspend)(struct platform_device* dev, pm_message_t state);
  41         int     (*resume)(struct platform_device* dev);
  42         int     (*shutdown)(struct platform_device* dev);
  43
  44         struct device_driver    driver;
  45         struct platform_driver  platform_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 extern int of_register_platform_driver(struct of_platform_driver *drv);
  56 extern void of_unregister_platform_driver(struct of_platform_driver *drv);
  57
  58 extern struct platform_device *of_device_alloc(struct device_node *np,
  59                                          const char *bus_id,
  60                                          struct device *parent);
  61 extern struct platform_device *of_find_device_by_node(struct device_node *np);
  62
  63 extern int of_bus_type_init(struct bus_type *bus, const char *name);
  64
  65 #if !defined(CONFIG_SPARC) /* SPARC has its own device registration method */
  66 /* Platform devices and busses creation */
  67 extern struct platform_device *of_platform_device_create(struct device_node *np,
  68                                                    const char *bus_id,
  69                                                    struct device *parent);
  70
  71 /* pseudo "matches" value to not do deep probe */
  72 #define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
  73
  74 extern int of_platform_bus_probe(struct device_node *root,
  75                                  const struct of_device_id *matches,
  76                                  struct device *parent);
  77 #endif /* !CONFIG_SPARC */
  78
  79 #endif /* CONFIG_OF_DEVICE */
  80
  81 #endif  /* _LINUX_OF_PLATFORM_H */