include/asm-powerpc/of_device.h

   1 #ifndef _ASM_POWERPC_OF_DEVICE_H
   2 #define _ASM_POWERPC_OF_DEVICE_H
   3
   4 #include <linux/device.h>
   5 #include <linux/mod_devicetable.h>
   6 #include <asm/prom.h>
   7
   8 /*
   9  * The of_platform_bus_type is a bus type used by drivers that do not
  10  * attach to a macio or similar bus but still use OF probing
  11  * mecanism
  12  */
  13 extern struct bus_type of_platform_bus_type;
  14
  15 /*
  16  * The of_device is a kind of "base class" that is a superset of
  17  * struct device for use by devices attached to an OF node and
  18  * probed using OF properties
  19  */
  20 struct of_device
  21 {
  22         struct device_node      *node;          /* OF device node */
  23         u64                     dma_mask;       /* DMA mask */
  24         struct device           dev;            /* Generic device interface */
  25 };
  26 #define to_of_device(d) container_of(d, struct of_device, dev)
  27
  28 extern const struct of_device_id *of_match_device(
  29         const struct of_device_id *matches, const struct of_device *dev);
  30
  31 extern struct of_device *of_dev_get(struct of_device *dev);
  32 extern void of_dev_put(struct of_device *dev);
  33
  34 /*
  35  * An of_platform_driver driver is attached to a basic of_device on
  36  * the "platform bus" (of_platform_bus_type)
  37  */
  38 struct of_platform_driver
  39 {
  40         char                    *name;
  41         struct of_device_id     *match_table;
  42         struct module           *owner;
  43
  44         int     (*probe)(struct of_device* dev, const struct of_device_id *match);
  45         int     (*remove)(struct of_device* dev);
  46
  47         int     (*suspend)(struct of_device* dev, pm_message_t state);
  48         int     (*resume)(struct of_device* dev);
  49         int     (*shutdown)(struct of_device* dev);
  50
  51         struct device_driver    driver;
  52 };
  53 #define to_of_platform_driver(drv) container_of(drv,struct of_platform_driver, driver)
  54
  55 extern int of_register_driver(struct of_platform_driver *drv);
  56 extern void of_unregister_driver(struct of_platform_driver *drv);
  57 extern int of_device_register(struct of_device *ofdev);
  58 extern void of_device_unregister(struct of_device *ofdev);
  59 extern struct of_device *of_platform_device_create(struct device_node *np,
  60                                                    const char *bus_id,
  61                                                    struct device *parent);
  62 extern void of_release_dev(struct device *dev);
  63
  64 #endif /* _ASM_POWERPC_OF_DEVICE_H */