USB: OHCI: remove Alchemy OHCI platform driver.

/*

 * OHCI HCD (Host Controller Driver) for USB.

 *

 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>

 * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>

 * (C) Copyright 2002 Hewlett-Packard Company

 *

 * Bus Glue for AMD Alchemy Au1xxx

 *

 * Written by Christopher Hoover <ch@hpl.hp.com>

 * Based on fragments of previous driver by Russell King et al.

 *

 * Modified for LH7A404 from ohci-sa1111.c

 *  by Durgesh Pattamatta <pattamattad@sharpsec.com>

 * Modified for AMD Alchemy Au1xxx

 *  by Matt Porter <mporter@kernel.crashing.org>

 *

 * This file is licenced under the GPL.

 */

#include <linux/platform_device.h>

#include <linux/signal.h>

#include <asm/mach-au1x00/au1000.h>

extern int usb_disabled(void);

static int __devinit ohci_au1xxx_start(struct usb_hcd *hcd)

{

	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);

	int ret;

	ohci_dbg(ohci, "ohci_au1xxx_start, ohci:%p", ohci);

	if ((ret = ohci_init(ohci)) < 0)

		return ret;

	if ((ret = ohci_run(ohci)) < 0) {

		dev_err(hcd->self.controller, "can't start %s",

			hcd->self.bus_name);

		ohci_stop(hcd);

		return ret;

	}

	return 0;

}

static const struct hc_driver ohci_au1xxx_hc_driver = {

	.description =		hcd_name,

	.product_desc =		"Au1xxx OHCI",

	.hcd_priv_size =	sizeof(struct ohci_hcd),

	/*

	 * generic hardware linkage

	 */

	.irq =			ohci_irq,

	.flags =		HCD_USB11 | HCD_MEMORY,

	/*

	 * basic lifecycle operations

	 */

	.start =		ohci_au1xxx_start,

	.stop =			ohci_stop,

	.shutdown =		ohci_shutdown,

	/*

	 * managing i/o requests and associated device resources

	 */

	.urb_enqueue =		ohci_urb_enqueue,

	.urb_dequeue =		ohci_urb_dequeue,

	.endpoint_disable =	ohci_endpoint_disable,

	/*

	 * scheduling support

	 */

	.get_frame_number =	ohci_get_frame,

	/*

	 * root hub support

	 */

	.hub_status_data =	ohci_hub_status_data,

	.hub_control =		ohci_hub_control,

#ifdef	CONFIG_PM

	.bus_suspend =		ohci_bus_suspend,

	.bus_resume =		ohci_bus_resume,

#endif

	.start_port_reset =	ohci_start_port_reset,

};

static int ohci_hcd_au1xxx_drv_probe(struct platform_device *pdev)

{

	int ret, unit;

	struct usb_hcd *hcd;

	if (usb_disabled())

		return -ENODEV;

	if (pdev->resource[1].flags != IORESOURCE_IRQ) {

		pr_debug("resource[1] is not IORESOURCE_IRQ\n");

		return -ENOMEM;

	}

	hcd = usb_create_hcd(&ohci_au1xxx_hc_driver, &pdev->dev, "au1xxx");

	if (!hcd)

		return -ENOMEM;

	hcd->rsrc_start = pdev->resource[0].start;

	hcd->rsrc_len = pdev->resource[0].end - pdev->resource[0].start + 1;

	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {

		pr_debug("request_mem_region failed\n");

		ret = -EBUSY;

		goto err1;

	}

	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);

	if (!hcd->regs) {

		pr_debug("ioremap failed\n");

		ret = -ENOMEM;

		goto err2;

	}

	unit = (hcd->rsrc_start == AU1300_USB_OHCI1_PHYS_ADDR) ?

			ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;

	if (alchemy_usb_control(unit, 1)) {

		printk(KERN_INFO "%s: controller init failed!\n", pdev->name);

		ret = -ENODEV;

		goto err3;

	}

	ohci_hcd_init(hcd_to_ohci(hcd));

	ret = usb_add_hcd(hcd, pdev->resource[1].start,

			  IRQF_SHARED);

	if (ret == 0) {

		platform_set_drvdata(pdev, hcd);

		return ret;

	}

	alchemy_usb_control(unit, 0);

err3:

	iounmap(hcd->regs);

err2:

	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

err1:

	usb_put_hcd(hcd);

	return ret;

}

static int ohci_hcd_au1xxx_drv_remove(struct platform_device *pdev)

{

	struct usb_hcd *hcd = platform_get_drvdata(pdev);

	int unit;

	unit = (hcd->rsrc_start == AU1300_USB_OHCI1_PHYS_ADDR) ?

			ALCHEMY_USB_OHCI1 : ALCHEMY_USB_OHCI0;

	usb_remove_hcd(hcd);

	alchemy_usb_control(unit, 0);

	iounmap(hcd->regs);

	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);

	usb_put_hcd(hcd);

	platform_set_drvdata(pdev, NULL);

	return 0;

}

#ifdef CONFIG_PM

static int ohci_hcd_au1xxx_drv_suspend(struct device *dev)

{

	struct usb_hcd *hcd = dev_get_drvdata(dev);

	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);

	unsigned long flags;

	int rc;

	rc = 0;

	/* Root hub was already suspended. Disable irq emission and

	 * mark HW unaccessible, bail out if RH has been resumed. Use

	 * the spinlock to properly synchronize with possible pending

	 * RH suspend or resume activity.

	 */

	spin_lock_irqsave(&ohci->lock, flags);

	if (ohci->rh_state != OHCI_RH_SUSPENDED) {

		rc = -EINVAL;

		goto bail;

	}

	ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);

	(void)ohci_readl(ohci, &ohci->regs->intrdisable);

	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

	alchemy_usb_control(ALCHEMY_USB_OHCI0, 0);

bail:

	spin_unlock_irqrestore(&ohci->lock, flags);

	return rc;

}

static int ohci_hcd_au1xxx_drv_resume(struct device *dev)

{

	struct usb_hcd *hcd = dev_get_drvdata(dev);

	alchemy_usb_control(ALCHEMY_USB_OHCI0, 1);

	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);

	ohci_finish_controller_resume(hcd);

	return 0;

}

static const struct dev_pm_ops au1xxx_ohci_pmops = {

	.suspend	= ohci_hcd_au1xxx_drv_suspend,

	.resume		= ohci_hcd_au1xxx_drv_resume,

};

#define AU1XXX_OHCI_PMOPS &au1xxx_ohci_pmops

#else

#define AU1XXX_OHCI_PMOPS NULL

#endif

static struct platform_driver ohci_hcd_au1xxx_driver = {

	.probe		= ohci_hcd_au1xxx_drv_probe,

	.remove		= ohci_hcd_au1xxx_drv_remove,

	.shutdown	= usb_hcd_platform_shutdown,

	.driver		= {

		.name	= "au1xxx-ohci",

		.owner	= THIS_MODULE,

		.pm	= AU1XXX_OHCI_PMOPS,

	},

};

MODULE_ALIAS("platform:au1xxx-ohci");

#define PLATFORM_DRIVER		ohci_hcd_ep93xx_driver

#endif

#ifdef CONFIG_MIPS_ALCHEMY

#include "ohci-au1xxx.c"

#define PLATFORM_DRIVER		ohci_hcd_au1xxx_driver

#endif

#ifdef CONFIG_ARCH_AT91

#include "ohci-at91.c"

#define PLATFORM_DRIVER		ohci_hcd_at91_driver