diff options
| -rw-r--r-- | drivers/base/platform.c | 73 | ||||
| -rw-r--r-- | include/linux/platform_device.h | 15 |
2 files changed, 88 insertions, 0 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 6d4736e89f1..8827dafba94 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -20,6 +20,8 @@ #include "base.h" +#define to_platform_driver(drv) (container_of((drv), struct platform_driver, driver)) + struct device platform_bus = { .bus_id = "platform", }; @@ -354,6 +356,77 @@ error: return ERR_PTR(retval); } +static int platform_drv_probe(struct device *_dev) +{ + struct platform_driver *drv = to_platform_driver(_dev->driver); + struct platform_device *dev = to_platform_device(_dev); + + return drv->probe(dev); +} + +static int platform_drv_remove(struct device *_dev) +{ + struct platform_driver *drv = to_platform_driver(_dev->driver); + struct platform_device *dev = to_platform_device(_dev); + + return drv->remove(dev); +} + +static void platform_drv_shutdown(struct device *_dev) +{ + struct platform_driver *drv = to_platform_driver(_dev->driver); + struct platform_device *dev = to_platform_device(_dev); + + drv->shutdown(dev); +} + +static int platform_drv_suspend(struct device *_dev, pm_message_t state) +{ + struct platform_driver *drv = to_platform_driver(_dev->driver); + struct platform_device *dev = to_platform_device(_dev); + + return drv->suspend(dev, state); +} + +static int platform_drv_resume(struct device *_dev) +{ + struct platform_driver *drv = to_platform_driver(_dev->driver); + struct platform_device *dev = to_platform_device(_dev); + + return drv->resume(dev); +} + +/** + * platform_driver_register + * @drv: platform driver structure + */ +int platform_driver_register(struct platform_driver *drv) +{ + drv->driver.bus = &platform_bus_type; + if (drv->probe) + drv->driver.probe = platform_drv_probe; + if (drv->remove) + drv->driver.remove = platform_drv_remove; + if (drv->shutdown) + drv->driver.shutdown = platform_drv_shutdown; + if (drv->suspend) + drv->driver.suspend = platform_drv_suspend; + if (drv->resume) + drv->driver.resume = platform_drv_resume; + return driver_register(&drv->driver); +} +EXPORT_SYMBOL_GPL(platform_driver_register); + +/** + * platform_driver_unregister + * @drv: platform driver structure + */ +void platform_driver_unregister(struct platform_driver *drv) +{ + driver_unregister(&drv->driver); +} +EXPORT_SYMBOL_GPL(platform_driver_unregister); + /** * platform_match - bind platform device to platform driver. diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 1a165b7ae01..17e336f40b4 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -43,4 +43,19 @@ extern int platform_device_add_data(struct platform_device *pdev, void *data, si extern int platform_device_add(struct platform_device *pdev); extern void platform_device_put(struct platform_device *pdev); +struct platform_driver { + int (*probe)(struct platform_device *); + int (*remove)(struct platform_device *); + void (*shutdown)(struct platform_device *); + int (*suspend)(struct platform_device *, pm_message_t state); + int (*resume)(struct platform_device *); + struct device_driver driver; +}; + +extern int platform_driver_register(struct platform_driver *); +extern void platform_driver_unregister(struct platform_driver *); + +#define platform_get_drvdata(_dev) dev_get_drvdata(&(_dev)->dev) +#define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data)) + #endif /* _PLATFORM_DEVICE_H_ */ |