diff options
Diffstat (limited to 'drivers/usb/host/ohci-omap3.c')
| -rw-r--r-- | drivers/usb/host/ohci-omap3.c | 211 |
1 files changed, 0 insertions, 211 deletions
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c deleted file mode 100644 index ec15aebe8786..000000000000 --- a/drivers/usb/host/ohci-omap3.c +++ /dev/null @@ -1,211 +0,0 @@ -/* - * ohci-omap3.c - driver for OHCI on OMAP3 and later processors - * - * Bus Glue for OMAP3 USBHOST 3 port OHCI controller - * This controller is also used in later OMAPs and AM35x chips - * - * Copyright (C) 2007-2010 Texas Instruments, Inc. - * Author: Vikram Pandita <vikram.pandita@ti.com> - * Author: Anand Gadiyar <gadiyar@ti.com> - * Author: Keshava Munegowda <keshava_mgowda@ti.com> - * - * Based on ehci-omap.c and some other ohci glue layers - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * TODO (last updated Feb 27, 2011): - * - add kernel-doc - */ - -#include <linux/dma-mapping.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/of.h> -#include <linux/usb/otg.h> -#include <linux/platform_device.h> -#include <linux/pm_runtime.h> -#include <linux/usb.h> -#include <linux/usb/hcd.h> - -#include "ohci.h" - -#define DRIVER_DESC "OHCI OMAP3 driver" - -static const char hcd_name[] = "ohci-omap3"; -static struct hc_driver __read_mostly ohci_omap3_hc_driver; - -/* - * configure so an HC device and id are always provided - * always called with process context; sleeping is OK - */ - -/** - * ohci_hcd_omap3_probe - initialize OMAP-based HCDs - * - * Allocates basic resources for this USB host controller, and - * then invokes the start() method for the HCD associated with it - * through the hotplug entry's driver_data. - */ -static int ohci_hcd_omap3_probe(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct ohci_hcd *ohci; - struct usb_hcd *hcd = NULL; - void __iomem *regs = NULL; - struct resource *res; - int ret; - int irq; - - if (usb_disabled()) - return -ENODEV; - - if (!dev->parent) { - dev_err(dev, "Missing parent device\n"); - return -ENODEV; - } - - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(dev, "OHCI irq failed\n"); - return -ENODEV; - } - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "UHH OHCI get resource failed\n"); - return -ENOMEM; - } - - regs = ioremap(res->start, resource_size(res)); - if (!regs) { - dev_err(dev, "UHH OHCI ioremap failed\n"); - return -ENOMEM; - } - - /* - * Right now device-tree probed devices don't get dma_mask set. - * Since shared usb code relies on it, set it here for now. - * Once we have dma capability bindings this can go away. - */ - ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32)); - if (ret) - goto err_io; - - ret = -ENODEV; - hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev, - dev_name(dev)); - if (!hcd) { - dev_err(dev, "usb_create_hcd failed\n"); - goto err_io; - } - - hcd->rsrc_start = res->start; - hcd->rsrc_len = resource_size(res); - hcd->regs = regs; - - pm_runtime_enable(dev); - pm_runtime_get_sync(dev); - - ohci = hcd_to_ohci(hcd); - /* - * RemoteWakeupConnected has to be set explicitly before - * calling ohci_run. The reset value of RWC is 0. - */ - ohci->hc_control = OHCI_CTRL_RWC; - - ret = usb_add_hcd(hcd, irq, 0); - if (ret) { - dev_dbg(dev, "failed to add hcd with err %d\n", ret); - goto err_add_hcd; - } - device_wakeup_enable(hcd->self.controller); - - return 0; - -err_add_hcd: - pm_runtime_put_sync(dev); - usb_put_hcd(hcd); - -err_io: - iounmap(regs); - - return ret; -} - -/* - * may be called without controller electrically present - * may be called with controller, bus, and devices active - */ - -/** - * ohci_hcd_omap3_remove - shutdown processing for OHCI HCDs - * @pdev: USB Host Controller being removed - * - * Reverses the effect of ohci_hcd_omap3_probe(), first invoking - * the HCD's stop() method. It is always called from a thread - * context, normally "rmmod", "apmd", or something similar. - */ -static int ohci_hcd_omap3_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); - - iounmap(hcd->regs); - usb_remove_hcd(hcd); - pm_runtime_put_sync(dev); - pm_runtime_disable(dev); - usb_put_hcd(hcd); - return 0; -} - -static const struct of_device_id omap_ohci_dt_ids[] = { - { .compatible = "ti,ohci-omap3" }, - { } -}; - -MODULE_DEVICE_TABLE(of, omap_ohci_dt_ids); - -static struct platform_driver ohci_hcd_omap3_driver = { - .probe = ohci_hcd_omap3_probe, - .remove = ohci_hcd_omap3_remove, - .shutdown = usb_hcd_platform_shutdown, - .driver = { - .name = "ohci-omap3", - .of_match_table = omap_ohci_dt_ids, - }, -}; - -static int __init ohci_omap3_init(void) -{ - if (usb_disabled()) - return -ENODEV; - - pr_info("%s: " DRIVER_DESC "\n", hcd_name); - - ohci_init_driver(&ohci_omap3_hc_driver, NULL); - return platform_driver_register(&ohci_hcd_omap3_driver); -} -module_init(ohci_omap3_init); - -static void __exit ohci_omap3_cleanup(void) -{ - platform_driver_unregister(&ohci_hcd_omap3_driver); -} -module_exit(ohci_omap3_cleanup); - -MODULE_DESCRIPTION(DRIVER_DESC); -MODULE_ALIAS("platform:ohci-omap3"); -MODULE_AUTHOR("Anand Gadiyar <gadiyar@ti.com>"); -MODULE_LICENSE("GPL"); |