diff options
Diffstat (limited to 'drivers/usb/host/ehci-platform.c')
| -rw-r--r-- | drivers/usb/host/ehci-platform.c | 102 |
1 files changed, 48 insertions, 54 deletions
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c index 764e0100b6f4..58fa0c90c7c7 100644 --- a/drivers/usb/host/ehci-platform.c +++ b/drivers/usb/host/ehci-platform.c @@ -18,9 +18,21 @@ * * Licensed under the GNU/GPL. See COPYING for details. */ +#include <linux/kernel.h> +#include <linux/hrtimer.h> +#include <linux/io.h> +#include <linux/module.h> #include <linux/platform_device.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> #include <linux/usb/ehci_pdriver.h> +#include "ehci.h" + +#define DRIVER_DESC "EHCI generic platform driver" + +static const char hcd_name[] = "ehci-platform"; + static int ehci_platform_reset(struct usb_hcd *hcd) { struct platform_device *pdev = to_platform_device(hcd->self.controller); @@ -38,47 +50,18 @@ static int ehci_platform_reset(struct usb_hcd *hcd) if (retval) return retval; - if (pdata->port_power_on) - ehci_port_power(ehci, 1); - if (pdata->port_power_off) - ehci_port_power(ehci, 0); - + if (pdata->no_io_watchdog) + ehci->need_io_watchdog = 0; return 0; } -static const struct hc_driver ehci_platform_hc_driver = { - .description = hcd_name, - .product_desc = "Generic Platform EHCI Controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - .reset = ehci_platform_reset, - .start = ehci_run, - .stop = ehci_stop, - .shutdown = ehci_shutdown, - - .urb_enqueue = ehci_urb_enqueue, - .urb_dequeue = ehci_urb_dequeue, - .endpoint_disable = ehci_endpoint_disable, - .endpoint_reset = ehci_endpoint_reset, +static struct hc_driver __read_mostly ehci_platform_hc_driver; - .get_frame_number = ehci_get_frame, - - .hub_status_data = ehci_hub_status_data, - .hub_control = ehci_hub_control, -#if defined(CONFIG_PM) - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_resume, -#endif - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, +static const struct ehci_driver_overrides platform_overrides __initdata = { + .reset = ehci_platform_reset, }; -static int __devinit ehci_platform_probe(struct platform_device *dev) +static int ehci_platform_probe(struct platform_device *dev) { struct usb_hcd *hcd; struct resource *res_mem; @@ -96,12 +79,12 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) irq = platform_get_irq(dev, 0); if (irq < 0) { - pr_err("no irq provided"); + dev_err(&dev->dev, "no irq provided"); return irq; } res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res_mem) { - pr_err("no memory recourse provided"); + dev_err(&dev->dev, "no memory resource provided"); return -ENXIO; } @@ -121,29 +104,19 @@ static int __devinit ehci_platform_probe(struct platform_device *dev) hcd->rsrc_start = res_mem->start; hcd->rsrc_len = resource_size(res_mem); - if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { - pr_err("controller already in use"); - err = -EBUSY; - goto err_put_hcd; - } - - hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len); + hcd->regs = devm_request_and_ioremap(&dev->dev, res_mem); if (!hcd->regs) { err = -ENOMEM; - goto err_release_region; + goto err_put_hcd; } err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) - goto err_iounmap; + goto err_put_hcd; platform_set_drvdata(dev, hcd); return err; -err_iounmap: - iounmap(hcd->regs); -err_release_region: - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err_put_hcd: usb_put_hcd(hcd); err_power: @@ -153,14 +126,12 @@ err_power: return err; } -static int __devexit ehci_platform_remove(struct platform_device *dev) +static int ehci_platform_remove(struct platform_device *dev) { struct usb_hcd *hcd = platform_get_drvdata(dev); struct usb_ehci_pdata *pdata = dev->dev.platform_data; usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); usb_put_hcd(hcd); platform_set_drvdata(dev, NULL); @@ -225,7 +196,7 @@ static const struct dev_pm_ops ehci_platform_pm_ops = { static struct platform_driver ehci_platform_driver = { .id_table = ehci_platform_table, .probe = ehci_platform_probe, - .remove = __devexit_p(ehci_platform_remove), + .remove = ehci_platform_remove, .shutdown = usb_hcd_platform_shutdown, .driver = { .owner = THIS_MODULE, @@ -233,3 +204,26 @@ static struct platform_driver ehci_platform_driver = { .pm = &ehci_platform_pm_ops, } }; + +static int __init ehci_platform_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ehci_init_driver(&ehci_platform_hc_driver, &platform_overrides); + return platform_driver_register(&ehci_platform_driver); +} +module_init(ehci_platform_init); + +static void __exit ehci_platform_cleanup(void) +{ + platform_driver_unregister(&ehci_platform_driver); +} +module_exit(ehci_platform_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_AUTHOR("Hauke Mehrtens"); +MODULE_AUTHOR("Alan Stern"); +MODULE_LICENSE("GPL"); |