static int mei_txe_pm_runtime_suspend(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
dev_dbg(&pdev->dev, "rpm: txe: runtime suspend\n");
dev = pci_get_drvdata(pdev);
if (!dev)
return -ENODEV;
mutex_lock(&dev->device_lock);
if (mei_write_is_idle(dev))
ret = mei_txe_aliveness_set_sync(dev, 0);
else
ret = -EAGAIN;
/*
* If everything is okay we're about to enter PCI low
* power state therefor we need to save and disable
* the interrupts towards host.
* However if device is not wakeable we cannot do that
*/
if (!ret && pci_dev_run_wake(pdev))
mei_txe_intr_save(dev);
dev_dbg(&pdev->dev, "rpm: txe: runtime suspend ret=%d\n", ret);
mutex_unlock(&dev->device_lock);
return ret;
}
static void xhci_ush_pci_remove(struct pci_dev *dev)
{
struct xhci_hcd *xhci;
xhci = hcd_to_xhci(pci_get_drvdata(dev));
if (xhci->shared_hcd) {
usb_remove_hcd(xhci->shared_hcd);
usb_put_hcd(xhci->shared_hcd);
}
if (!pci_dev_run_wake(dev))
pm_runtime_get_noresume(&dev->dev);
pm_runtime_forbid(&dev->dev);
usb_hcd_pci_remove(dev);
/* Free the aux irq */
hsic_aux_irq_free();
hsic_wakeup_irq_free();
gpio_free(hsic.aux_gpio);
gpio_free(hsic.wakeup_gpio);
hsic.hsic_stopped = 1;
hsic_enable = 0;
kfree(xhci);
}
static void xhci_ush_pci_remove(struct pci_dev *dev)
{
struct xhci_hcd *xhci;
xhci = hcd_to_xhci(pci_get_drvdata(dev));
if (xhci->shared_hcd) {
usb_remove_hcd(xhci->shared_hcd);
usb_put_hcd(xhci->shared_hcd);
}
if (!pci_dev_run_wake(dev))
pm_runtime_get_noresume(&dev->dev);
pm_runtime_forbid(&dev->dev);
usb_hcd_pci_remove(dev);
/* Free the aux irq */
hsic_aux_irq_free();
hsic_wakeup_irq_free();
gpio_free(hsic.aux_gpio);
gpio_free(hsic.wakeup_gpio);
hsic.port_disconnect = 1;
hsic_enable = 0;
wake_lock_destroy(&(hsic.resume_wake_lock));
wake_lock_destroy(&hsic.s3_wake_lock);
usb_unregister_notify(&hsic.hsic_pm_nb);
unregister_pm_notifier(&hsic.hsic_s3_entry_nb);
kfree(xhci);
}
/**
* mei_txe_remove - Device Shutdown Routine
*
* @pdev: PCI device structure
*
* mei_txe_shutdown is called from the reboot notifier
* it's a simplified version of remove so we go down
* faster.
*/
static void mei_txe_shutdown(struct pci_dev *pdev)
{
struct mei_device *dev;
dev = pci_get_drvdata(pdev);
if (!dev)
return;
dev_dbg(&pdev->dev, "shutdown\n");
mei_stop(dev);
if (!pci_dev_run_wake(pdev))
mei_txe_unset_pm_domain(dev);
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
}
/**
* mei_remove - Device Removal Routine
*
* @pdev: PCI device structure
*
* mei_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device.
*/
static void mei_txe_remove(struct pci_dev *pdev)
{
struct mei_device *dev;
struct mei_txe_hw *hw;
dev = pci_get_drvdata(pdev);
if (!dev) {
dev_err(&pdev->dev, "mei: dev =NULL\n");
return;
}
pm_runtime_get_noresume(&pdev->dev);
hw = to_txe_hw(dev);
mei_stop(dev);
if (!pci_dev_run_wake(pdev))
mei_txe_unset_pm_domain(dev);
/* disable interrupts */
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
pci_disable_msi(pdev);
mei_mm_deinit(hw->mdev);
if (hw->pool_release)
hw->pool_release(hw);
pci_set_drvdata(pdev, NULL);
mei_txe_pci_iounmap(pdev, hw);
mei_deregister(dev);
kfree(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
}
/**
* mei_me_remove - Device Removal Routine
*
* @pdev: PCI device structure
*
* mei_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device.
*/
static void mei_me_remove(struct pci_dev *pdev)
{
struct mei_device *dev;
struct mei_me_hw *hw;
dev = pci_get_drvdata(pdev);
if (!dev)
return;
if (mei_pg_is_enabled(dev))
pm_runtime_get_noresume(&pdev->dev);
hw = to_me_hw(dev);
dev_dbg(&pdev->dev, "stop\n");
mei_stop(dev);
if (!pci_dev_run_wake(pdev))
mei_me_unset_pm_domain(dev);
/* disable interrupts */
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
pci_disable_msi(pdev);
if (hw->mem_addr)
pci_iounmap(pdev, hw->mem_addr);
mei_deregister(dev);
kfree(dev);
pci_release_regions(pdev);
pci_disable_device(pdev);
}
/**
* mei_txe_remove - Device Removal Routine
*
* @pdev: PCI device structure
*
* mei_remove is called by the PCI subsystem to alert the driver
* that it should release a PCI device.
*/
static void mei_txe_remove(struct pci_dev *pdev)
{
struct mei_device *dev;
dev = pci_get_drvdata(pdev);
if (!dev) {
dev_err(&pdev->dev, "mei: dev == NULL\n");
return;
}
pm_runtime_get_noresume(&pdev->dev);
mei_stop(dev);
if (!pci_dev_run_wake(pdev))
mei_txe_unset_pm_domain(dev);
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
mei_deregister(dev);
}
static int mei_txe_pm_runtime_suspend(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
int ret;
dev_dbg(&pdev->dev, "rpm: txe: runtime suspend\n");
dev = pci_get_drvdata(pdev);
if (!dev)
return -ENODEV;
mutex_lock(&dev->device_lock);
if (mei_write_is_idle(dev))
ret = mei_txe_aliveness_set_sync(dev, 0);
else
ret = -EAGAIN;
/*
* If everything is okay we're about to enter PCI low
* power state (D3) therefor we need to disable the
* interrupts towards host.
* However if device is not wakeable we do not enter
* D-low state and we need to keep the interrupt kicking
*/
if (!ret && pci_dev_run_wake(pdev))
mei_disable_interrupts(dev);
dev_dbg(&pdev->dev, "rpm: txe: runtime suspend ret=%d\n", ret);
mutex_unlock(&dev->device_lock);
if (ret && ret != -EAGAIN)
schedule_work(&dev->reset_work);
return ret;
}
static void ehci_hsic_remove(struct pci_dev *pdev)
{
struct usb_hcd *hcd = pci_get_drvdata(pdev);
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
if (!hcd)
return;
hsic.hsic_stopped = 1;
hsic_enable = 0;
if (pci_dev_run_wake(pdev))
pm_runtime_get_noresume(&pdev->dev);
if (!enabling_disabling) {
if (!pci_dev_run_wake(pdev))
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_forbid(&pdev->dev);
}
/* Free the aux irq */
hsic_aux_irq_free();
hsic_wakeup_irq_free();
/* Fake an interrupt request in order to give the driver a chance
* to test whether the controller hardware has been removed (e.g.,
* cardbus physical eject).
*/
local_irq_disable();
usb_hcd_irq(0, hcd);
local_irq_enable();
usb_remove_hcd(hcd);
#if 0
ehci_hsic_port_power(ehci, 0);
#endif
/* Set phy low power mode, disable phy clock */
ehci_hsic_phy_power(ehci, 1);
if (hcd->driver->flags & HCD_MEMORY) {
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
} else {
release_region(hcd->rsrc_start, hcd->rsrc_len);
}
usb_put_hcd(hcd);
gpio_free(hsic.aux_gpio);
gpio_free(hsic.wakeup_gpio);
pci_disable_device(pdev);
cancel_delayed_work_sync(&hsic.wakeup_work);
destroy_workqueue(hsic.work_queue);
wake_lock_destroy(&(hsic.resume_wake_lock));
wake_lock_destroy(&hsic.s3_wake_lock);
usb_unregister_notify(&hsic.hsic_pm_nb);
unregister_pm_notifier(&hsic.hsic_s3_entry_nb);
hsic_debugfs_cleanup();
}
static int ehci_hsic_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
struct hc_driver *driver;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
int irq, retval;
pr_debug("initializing Intel EHCI HSIC Host Controller\n");
if (usb_disabled())
return -ENODEV;
if (!id)
return -EINVAL;
pci_dev = pdev;
if (pci_enable_device(pdev) < 0)
return -ENODEV;
pdev->current_state = PCI_D0;
wake_lock_init(&hsic.resume_wake_lock,
WAKE_LOCK_SUSPEND, "hsic_aux2_wlock");
wake_lock_init(&hsic.s3_wake_lock,
WAKE_LOCK_SUSPEND, "hsic_s3_wlock");
hsic.hsic_pm_nb.notifier_call = hsic_pm_notify;
usb_register_notify(&hsic.hsic_pm_nb);
hsic.hsic_s3_entry_nb.notifier_call = hsic_s3_entry_notify;
register_pm_notifier(&hsic.hsic_s3_entry_nb);
/* we need not call pci_enable_dev since otg transceiver already take
* the control of this device and this probe actaully gets called by
* otg transceiver driver with HNP protocol.
*/
irq = pdev->irq;
if (!pdev->irq) {
dev_dbg(&pdev->dev, "No IRQ.\n");
retval = -ENODEV;
goto disable_pci;
}
driver = (struct hc_driver *)id->driver_data;
if (!driver)
return -EINVAL;
/* AUX GPIO init */
retval = hsic_aux_gpio_init();
if (retval < 0) {
dev_err(&pdev->dev, "AUX GPIO init fail\n");
retval = -ENODEV;
goto disable_pci;
}
/* AUX GPIO init */
retval = hsic_wakeup_gpio_init();
if (retval < 0) {
dev_err(&pdev->dev, "Wakeup GPIO init fail\n");
retval = -ENODEV;
goto disable_pci;
}
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
retval = -ENOMEM;
goto disable_pci;
}
ehci = hcd_to_ehci(hcd);
hcd->rsrc_start = pci_resource_start(pdev, 0);
hcd->rsrc_len = pci_resource_len(pdev, 0);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
retval = -EBUSY;
goto clear_companion;
}
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
retval = -EFAULT;
goto release_mem_region;
}
pci_set_master(pdev);
if (hsic.hsic_enable_created == 0) {
retval = create_device_files();
if (retval < 0) {
dev_dbg(&pdev->dev, "error create device files\n");
goto release_mem_region;
}
hsic.hsic_enable_created = 1;
}
if (hsic.hsic_mutex_init == 0) {
mutex_init(&hsic.hsic_mutex);
mutex_init(&hsic.wlock_mutex);
hsic.hsic_mutex_init = 1;
}
if (hsic.aux_wq_init == 0) {
init_waitqueue_head(&hsic.aux_wq);
hsic.aux_wq_init = 1;
}
hsic.work_queue = create_singlethread_workqueue("hsic");
INIT_DELAYED_WORK(&hsic.wakeup_work, wakeup_work);
INIT_DELAYED_WORK(&(hsic.hsic_aux), hsic_aux_work);
hcd->hsic_notify = hsic_notify;
retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED | IRQF_NO_SUSPEND);
if (retval != 0)
goto unmap_registers;
dev_set_drvdata(&pdev->dev, hcd);
/* Clear phy low power mode, enable phy clock */
ehci_hsic_phy_power(ehci, 0);
if (pci_dev_run_wake(pdev))
pm_runtime_put_noidle(&pdev->dev);
if (!enabling_disabling) {
/* Check here to avoid to call pm_runtime_put_noidle() twice */
if (!pci_dev_run_wake(pdev))
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_allow(&pdev->dev);
}
hsic.hsic_stopped = 0;
hsic_enable = 1;
hsic.s3_rt_state = RESUMED;
s3_wake_lock();
hsic_debugfs_init(hcd);
return retval;
unmap_registers:
destroy_workqueue(hsic.work_queue);
if (driver->flags & HCD_MEMORY) {
iounmap(hcd->regs);
release_mem_region:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
} else
release_region(hcd->rsrc_start, hcd->rsrc_len);
clear_companion:
dev_set_drvdata(&pdev->dev, NULL);
usb_put_hcd(hcd);
disable_pci:
pci_disable_device(pdev);
dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev), retval);
wake_lock_destroy(&(hsic.resume_wake_lock));
wake_lock_destroy(&hsic.s3_wake_lock);
return retval;
}
/*
* We need to register our own PCI probe function (instead of the USB core's
* function) in order to create a second roothub under xHCI.
*/
static int xhci_ush_pci_probe(struct pci_dev *dev,
const struct pci_device_id *id)
{
int retval;
struct xhci_hcd *xhci;
struct hc_driver *driver;
struct usb_hcd *hcd;
driver = (struct hc_driver *)id->driver_data;
pci_dev = dev;
/* AUX GPIO init */
retval = hsic_aux_gpio_init();
if (retval < 0) {
dev_err(&dev->dev, "AUX GPIO init fail\n");
retval = -ENODEV;
}
/* AUX GPIO init */
retval = hsic_wakeup_gpio_init();
if (retval < 0) {
dev_err(&dev->dev, "Wakeup GPIO init fail\n");
retval = -ENODEV;
}
/* Register the USB 2.0 roothub.
* FIXME: USB core must know to register the USB 2.0 roothub first.
* This is sort of silly, because we could just set the HCD driver flags
* to say USB 2.0, but I'm not sure what the implications would be in
* the other parts of the HCD code.
*/
retval = usb_hcd_pci_probe(dev, id);
if (retval)
return retval;
/* USB 2.0 roothub is stored in the PCI device now. */
hcd = dev_get_drvdata(&dev->dev);
xhci = hcd_to_xhci(hcd);
xhci->shared_hcd = usb_create_shared_hcd(driver, &dev->dev,
pci_name(dev), hcd);
if (!xhci->shared_hcd) {
retval = -ENOMEM;
goto dealloc_usb2_hcd;
}
/* Set the xHCI pointer before xhci_pci_setup() (aka hcd_driver.reset)
* is called by usb_add_hcd().
*/
*((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci;
if (hsic.hsic_enable_created == 0) {
retval = create_device_files();
if (retval < 0) {
dev_dbg(&dev->dev, "error create device files\n");
goto dealloc_usb2_hcd;
}
hsic.hsic_enable_created = 1;
}
if (hsic.hsic_mutex_init == 0) {
mutex_init(&hsic.hsic_mutex);
hsic.hsic_mutex_init = 1;
}
if (hsic.aux_wq_init == 0) {
init_waitqueue_head(&hsic.aux_wq);
hsic.aux_wq_init = 1;
}
hsic.work_queue = create_singlethread_workqueue("hsic");
INIT_WORK(&hsic.wakeup_work, wakeup_work);
INIT_DELAYED_WORK(&(hsic.hsic_aux), hsic_aux_work);
retval = usb_add_hcd(xhci->shared_hcd, dev->irq,
IRQF_SHARED);
if (retval)
goto put_usb3_hcd;
/* Roothub already marked as USB 3.0 speed */
/* Enable Controller wakeup capability */
device_set_wakeup_enable(&dev->dev, true);
/* Enable runtime pm ability */
hcd->rpm_control = 1;
hcd->rpm_resume = 0;
pm_runtime_set_active(&dev->dev);
/* Check here to avoid to call pm_runtime_put_noidle() twice */
if (!pci_dev_run_wake(dev))
pm_runtime_put_noidle(&dev->dev);
pm_runtime_allow(&dev->dev);
hsic.hsic_stopped = 0;
hsic_enable = 1;
return 0;
put_usb3_hcd:
usb_put_hcd(xhci->shared_hcd);
dealloc_usb2_hcd:
usb_hcd_pci_remove(dev);
return retval;
}
/**
* mei_me_probe - Device Initialization Routine
*
* @pdev: PCI device structure
* @ent: entry in kcs_pci_tbl
*
* Return: 0 on success, <0 on failure.
*/
static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
const struct mei_cfg *cfg = (struct mei_cfg *)(ent->driver_data);
struct mei_device *dev;
struct mei_me_hw *hw;
int err;
if (!mei_me_quirk_probe(pdev, cfg))
return -ENODEV;
/* enable pci dev */
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "failed to enable pci device.\n");
goto end;
}
/* set PCI host mastering */
pci_set_master(pdev);
/* pci request regions for mei driver */
err = pci_request_regions(pdev, KBUILD_MODNAME);
if (err) {
dev_err(&pdev->dev, "failed to get pci regions.\n");
goto disable_device;
}
if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) ||
dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
if (err)
err = dma_set_coherent_mask(&pdev->dev,
DMA_BIT_MASK(32));
}
if (err) {
dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
goto release_regions;
}
/* allocates and initializes the mei dev structure */
dev = mei_me_dev_init(pdev, cfg);
if (!dev) {
err = -ENOMEM;
goto release_regions;
}
hw = to_me_hw(dev);
/* mapping IO device memory */
hw->mem_addr = pci_iomap(pdev, 0, 0);
if (!hw->mem_addr) {
dev_err(&pdev->dev, "mapping I/O device memory failure.\n");
err = -ENOMEM;
goto free_device;
}
pci_enable_msi(pdev);
/* request and enable interrupt */
if (pci_dev_msi_enabled(pdev))
err = request_threaded_irq(pdev->irq,
NULL,
mei_me_irq_thread_handler,
IRQF_ONESHOT, KBUILD_MODNAME, dev);
else
err = request_threaded_irq(pdev->irq,
mei_me_irq_quick_handler,
mei_me_irq_thread_handler,
IRQF_SHARED, KBUILD_MODNAME, dev);
if (err) {
dev_err(&pdev->dev, "request_threaded_irq failure. irq = %d\n",
pdev->irq);
goto disable_msi;
}
if (mei_start(dev)) {
dev_err(&pdev->dev, "init hw failure.\n");
err = -ENODEV;
goto release_irq;
}
pm_runtime_set_autosuspend_delay(&pdev->dev, MEI_ME_RPM_TIMEOUT);
pm_runtime_use_autosuspend(&pdev->dev);
err = mei_register(dev, &pdev->dev);
if (err)
goto release_irq;
pci_set_drvdata(pdev, dev);
schedule_delayed_work(&dev->timer_work, HZ);
/*
* For not wake-able HW runtime pm framework
* can't be used on pci device level.
* Use domain runtime pm callbacks instead.
*/
if (!pci_dev_run_wake(pdev))
mei_me_set_pm_domain(dev);
if (mei_pg_is_enabled(dev))
pm_runtime_put_noidle(&pdev->dev);
dev_dbg(&pdev->dev, "initialization successful.\n");
return 0;
release_irq:
mei_cancel_work(dev);
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
disable_msi:
pci_disable_msi(pdev);
pci_iounmap(pdev, hw->mem_addr);
free_device:
kfree(dev);
release_regions:
pci_release_regions(pdev);
disable_device:
pci_disable_device(pdev);
end:
dev_err(&pdev->dev, "initialization failed.\n");
return err;
}
/**
* mei_txe_probe - Device Initialization Routine
*
* @pdev: PCI device structure
* @ent: entry in mei_txe_pci_tbl
*
* Return: 0 on success, <0 on failure.
*/
static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct mei_device *dev;
struct mei_txe_hw *hw;
int err;
int i;
/* enable pci dev */
err = pci_enable_device(pdev);
if (err) {
dev_err(&pdev->dev, "failed to enable pci device.\n");
goto end;
}
/* set PCI host mastering */
pci_set_master(pdev);
/* pci request regions for mei driver */
err = pci_request_regions(pdev, KBUILD_MODNAME);
if (err) {
dev_err(&pdev->dev, "failed to get pci regions.\n");
goto disable_device;
}
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
if (err) {
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "No suitable DMA available.\n");
goto release_regions;
}
}
/* allocates and initializes the mei dev structure */
dev = mei_txe_dev_init(pdev);
if (!dev) {
err = -ENOMEM;
goto release_regions;
}
hw = to_txe_hw(dev);
/* mapping IO device memory */
for (i = SEC_BAR; i < NUM_OF_MEM_BARS; i++) {
hw->mem_addr[i] = pci_iomap(pdev, i, 0);
if (!hw->mem_addr[i]) {
dev_err(&pdev->dev, "mapping I/O device memory failure.\n");
err = -ENOMEM;
goto free_device;
}
}
pci_enable_msi(pdev);
/* clear spurious interrupts */
mei_clear_interrupts(dev);
/* request and enable interrupt */
if (pci_dev_msi_enabled(pdev))
err = request_threaded_irq(pdev->irq,
NULL,
mei_txe_irq_thread_handler,
IRQF_ONESHOT, KBUILD_MODNAME, dev);
else
err = request_threaded_irq(pdev->irq,
mei_txe_irq_quick_handler,
mei_txe_irq_thread_handler,
IRQF_SHARED, KBUILD_MODNAME, dev);
if (err) {
dev_err(&pdev->dev, "mei: request_threaded_irq failure. irq = %d\n",
pdev->irq);
goto free_device;
}
if (mei_start(dev)) {
dev_err(&pdev->dev, "init hw failure.\n");
err = -ENODEV;
goto release_irq;
}
pm_runtime_set_autosuspend_delay(&pdev->dev, MEI_TXI_RPM_TIMEOUT);
pm_runtime_use_autosuspend(&pdev->dev);
err = mei_register(dev, &pdev->dev);
if (err)
goto stop;
pci_set_drvdata(pdev, dev);
/*
* For not wake-able HW runtime pm framework
* can't be used on pci device level.
* Use domain runtime pm callbacks instead.
*/
if (!pci_dev_run_wake(pdev))
mei_txe_set_pm_domain(dev);
pm_runtime_put_noidle(&pdev->dev);
return 0;
stop:
mei_stop(dev);
release_irq:
mei_cancel_work(dev);
/* disable interrupts */
mei_disable_interrupts(dev);
free_irq(pdev->irq, dev);
pci_disable_msi(pdev);
free_device:
mei_txe_pci_iounmap(pdev, hw);
kfree(dev);
release_regions:
pci_release_regions(pdev);
disable_device:
pci_disable_device(pdev);
end:
dev_err(&pdev->dev, "initialization failed.\n");
return err;
}
