include/asm-powerpc/of_device.h

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