diff options
Diffstat (limited to 'drivers/usb/host/isp1760-if.c')
| -rw-r--r-- | drivers/usb/host/isp1760-if.c | 95 |
1 files changed, 79 insertions, 16 deletions
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c index 4cf7ca428b3..3fa3a170279 100644 --- a/drivers/usb/host/isp1760-if.c +++ b/drivers/usb/host/isp1760-if.c @@ -10,6 +10,7 @@ #include <linux/usb.h> #include <linux/io.h> +#include <linux/platform_device.h> #include "../core/hcd.h" #include "isp1760-hcd.h" @@ -300,39 +301,101 @@ static struct pci_driver isp1761_pci_driver = { }; #endif +static int __devinit isp1760_plat_probe(struct platform_device *pdev) +{ + int ret = 0; + struct usb_hcd *hcd; + struct resource *mem_res; + struct resource *irq_res; + resource_size_t mem_size; + unsigned long irqflags = IRQF_SHARED | IRQF_DISABLED; + + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem_res) { + pr_warning("isp1760: Memory resource not available\n"); + ret = -ENODEV; + goto out; + } + mem_size = resource_size(mem_res); + if (!request_mem_region(mem_res->start, mem_size, "isp1760")) { + pr_warning("isp1760: Cannot reserve the memory resource\n"); + ret = -EBUSY; + goto out; + } + + irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!irq_res) { + pr_warning("isp1760: IRQ resource not available\n"); + return -ENODEV; + } + irqflags |= irq_res->flags & IRQF_TRIGGER_MASK; + + hcd = isp1760_register(mem_res->start, mem_size, irq_res->start, + irqflags, &pdev->dev, dev_name(&pdev->dev), 0); + if (IS_ERR(hcd)) { + pr_warning("isp1760: Failed to register the HCD device\n"); + ret = -ENODEV; + goto cleanup; + } + + pr_info("ISP1760 USB device initialised\n"); + return ret; + +cleanup: + release_mem_region(mem_res->start, mem_size); +out: + return ret; +} + +static int __devexit isp1760_plat_remove(struct platform_device *pdev) +{ + struct resource *mem_res; + resource_size_t mem_size; + + mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + mem_size = resource_size(mem_res); + release_mem_region(mem_res->start, mem_size); + + return 0; +} + +static struct platform_driver isp1760_plat_driver = { + .probe = isp1760_plat_probe, + .remove = isp1760_plat_remove, + .driver = { + .name = "isp1760", + }, +}; + static int __init isp1760_init(void) { - int ret; + int ret, any_ret = -ENODEV; init_kmem_once(); + ret = platform_driver_register(&isp1760_plat_driver); + if (!ret) + any_ret = 0; #ifdef CONFIG_PPC_OF ret = of_register_platform_driver(&isp1760_of_driver); - if (ret) { - deinit_kmem_cache(); - return ret; - } + if (!ret) + any_ret = 0; #endif #ifdef CONFIG_PCI ret = pci_register_driver(&isp1761_pci_driver); - if (ret) - goto unreg_of; + if (!ret) + any_ret = 0; #endif - return ret; -#ifdef CONFIG_PCI -unreg_of: -#endif -#ifdef CONFIG_PPC_OF - of_unregister_platform_driver(&isp1760_of_driver); -#endif - deinit_kmem_cache(); - return ret; + if (any_ret) + deinit_kmem_cache(); + return any_ret; } module_init(isp1760_init); static void __exit isp1760_exit(void) { + platform_driver_unregister(&isp1760_plat_driver); #ifdef CONFIG_PPC_OF of_unregister_platform_driver(&isp1760_of_driver); #endif |