diff options
Diffstat (limited to 'drivers/base/platform.c')
| -rw-r--r-- | drivers/base/platform.c | 68 |
1 files changed, 41 insertions, 27 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 8827dafba945..0f81731bdfa8 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -25,6 +25,7 @@ struct device platform_bus = { .bus_id = "platform", }; +EXPORT_SYMBOL_GPL(platform_bus); /** * platform_get_resource - get a resource for a device @@ -49,6 +50,7 @@ platform_get_resource(struct platform_device *dev, unsigned int type, } return NULL; } +EXPORT_SYMBOL_GPL(platform_get_resource); /** * platform_get_irq - get an IRQ for a device @@ -61,6 +63,7 @@ int platform_get_irq(struct platform_device *dev, unsigned int num) return r ? r->start : 0; } +EXPORT_SYMBOL_GPL(platform_get_irq); /** * platform_get_resource_byname - get a resource for a device by name @@ -84,6 +87,7 @@ platform_get_resource_byname(struct platform_device *dev, unsigned int type, } return NULL; } +EXPORT_SYMBOL_GPL(platform_get_resource_byname); /** * platform_get_irq - get an IRQ for a device @@ -96,6 +100,7 @@ int platform_get_irq_byname(struct platform_device *dev, char *name) return r ? r->start : 0; } +EXPORT_SYMBOL_GPL(platform_get_irq_byname); /** * platform_add_devices - add a numbers of platform devices @@ -117,6 +122,7 @@ int platform_add_devices(struct platform_device **devs, int num) return ret; } +EXPORT_SYMBOL_GPL(platform_add_devices); struct platform_object { struct platform_device pdev; @@ -168,7 +174,7 @@ struct platform_device *platform_device_alloc(const char *name, unsigned int id) pa->pdev.dev.release = platform_device_release; } - return pa ? &pa->pdev : NULL; + return pa ? &pa->pdev : NULL; } EXPORT_SYMBOL_GPL(platform_device_alloc); @@ -257,7 +263,7 @@ int platform_device_add(struct platform_device *pdev) p = &ioport_resource; } - if (p && request_resource(p, r)) { + if (p && insert_resource(p, r)) { printk(KERN_ERR "%s: failed to claim resource %d\n", pdev->dev.bus_id, i); @@ -282,24 +288,13 @@ int platform_device_add(struct platform_device *pdev) EXPORT_SYMBOL_GPL(platform_device_add); /** - * platform_device_register - add a platform-level device - * @pdev: platform device we're adding - * - */ -int platform_device_register(struct platform_device * pdev) -{ - device_initialize(&pdev->dev); - return platform_device_add(pdev); -} - -/** - * platform_device_unregister - remove a platform-level device + * platform_device_del - remove a platform-level device * @pdev: platform device we're removing * * Note that this function will also release all memory- and port-based * resources owned by the device (@dev->resource). */ -void platform_device_unregister(struct platform_device * pdev) +void platform_device_del(struct platform_device *pdev) { int i; @@ -310,9 +305,37 @@ void platform_device_unregister(struct platform_device * pdev) release_resource(r); } - device_unregister(&pdev->dev); + device_del(&pdev->dev); } } +EXPORT_SYMBOL_GPL(platform_device_del); + +/** + * platform_device_register - add a platform-level device + * @pdev: platform device we're adding + * + */ +int platform_device_register(struct platform_device * pdev) +{ + device_initialize(&pdev->dev); + return platform_device_add(pdev); +} +EXPORT_SYMBOL_GPL(platform_device_register); + +/** + * platform_device_unregister - unregister a platform-level device + * @pdev: platform device we're unregistering + * + * Unregistration is done in 2 steps. Fisrt we release all resources + * and remove it from the sybsystem, then we drop reference count by + * calling platform_device_put(). + */ +void platform_device_unregister(struct platform_device * pdev) +{ + platform_device_del(pdev); + platform_device_put(pdev); +} +EXPORT_SYMBOL_GPL(platform_device_unregister); /** * platform_device_register_simple @@ -355,6 +378,7 @@ error: platform_device_put(pdev); return ERR_PTR(retval); } +EXPORT_SYMBOL_GPL(platform_device_register_simple); static int platform_drv_probe(struct device *_dev) { @@ -476,6 +500,7 @@ struct bus_type platform_bus_type = { .suspend = platform_suspend, .resume = platform_resume, }; +EXPORT_SYMBOL_GPL(platform_bus_type); int __init platform_bus_init(void) { @@ -504,14 +529,3 @@ u64 dma_get_required_mask(struct device *dev) } EXPORT_SYMBOL_GPL(dma_get_required_mask); #endif - -EXPORT_SYMBOL_GPL(platform_bus); -EXPORT_SYMBOL_GPL(platform_bus_type); -EXPORT_SYMBOL_GPL(platform_add_devices); -EXPORT_SYMBOL_GPL(platform_device_register); -EXPORT_SYMBOL_GPL(platform_device_register_simple); -EXPORT_SYMBOL_GPL(platform_device_unregister); -EXPORT_SYMBOL_GPL(platform_get_irq); -EXPORT_SYMBOL_GPL(platform_get_resource); -EXPORT_SYMBOL_GPL(platform_get_irq_byname); -EXPORT_SYMBOL_GPL(platform_get_resource_byname); |