diff options
Diffstat (limited to 'include/linux/platform_device.h')
| -rw-r--r-- | include/linux/platform_device.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 76e470a299bf..72736fd8223c 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -77,4 +77,46 @@ extern int platform_driver_probe(struct platform_driver *driver, #define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev) #define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data)) +/* early platform driver interface */ +struct early_platform_driver { + const char *class_str; + struct platform_driver *pdrv; + struct list_head list; + int requested_id; +}; + +#define EARLY_PLATFORM_ID_UNSET -2 +#define EARLY_PLATFORM_ID_ERROR -3 + +extern int early_platform_driver_register(struct early_platform_driver *epdrv, + char *buf); +extern void early_platform_add_devices(struct platform_device **devs, int num); + +static inline int is_early_platform_device(struct platform_device *pdev) +{ + return !pdev->dev.driver; +} + +extern void early_platform_driver_register_all(char *class_str); +extern int early_platform_driver_probe(char *class_str, + int nr_probe, int user_only); +extern void early_platform_cleanup(void); + + +#ifndef MODULE +#define early_platform_init(class_string, platform_driver) \ +static __initdata struct early_platform_driver early_driver = { \ + .class_str = class_string, \ + .pdrv = platform_driver, \ + .requested_id = EARLY_PLATFORM_ID_UNSET, \ +}; \ +static int __init early_platform_driver_setup_func(char *buf) \ +{ \ + return early_platform_driver_register(&early_driver, buf); \ +} \ +early_param(class_string, early_platform_driver_setup_func) +#else /* MODULE */ +#define early_platform_init(class_string, platform_driver) +#endif /* MODULE */ + #endif /* _PLATFORM_DEVICE_H_ */ |