41 typedef void (*companion_fn)(struct pci_dev *pdev, struct usb_hcd *hcd,
45 static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd,  in for_each_companion()  argument
74 		fn(pdev, hcd, companion, companion_hcd);  in for_each_companion()
84 static void ehci_pre_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_pre_add()  argument
101 static void ehci_post_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_post_add()  argument
110 			companion_hcd->self.hs_companion = &hcd->self;  in ehci_post_add()
122 static void non_ehci_add(struct pci_dev *pdev, struct usb_hcd *hcd,  in non_ehci_add()  argument
128 		hcd->self.hs_companion = &companion_hcd->self;  in non_ehci_add()
133 static void ehci_remove(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_remove()  argument
143 static void ehci_wait_for_companions(struct pci_dev *pdev, struct usb_hcd *hcd,  in ehci_wait_for_companions()  argument
174 	struct usb_hcd		*hcd;  in usb_hcd_pci_probe()  local
203 	hcd = usb_create_hcd(driver, &dev->dev, pci_name(dev));  in usb_hcd_pci_probe()
204 	if (!hcd) {  in usb_hcd_pci_probe()
209 	hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) &&  in usb_hcd_pci_probe()
214 		hcd->rsrc_start = pci_resource_start(dev, 0);  in usb_hcd_pci_probe()
215 		hcd->rsrc_len = pci_resource_len(dev, 0);  in usb_hcd_pci_probe()
216 		if (!devm_request_mem_region(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
217 				hcd->rsrc_len, driver->description)) {  in usb_hcd_pci_probe()
222 		hcd->regs = devm_ioremap(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
223 				hcd->rsrc_len);  in usb_hcd_pci_probe()
224 		if (hcd->regs == NULL) {  in usb_hcd_pci_probe()
239 			hcd->rsrc_start = pci_resource_start(dev, region);  in usb_hcd_pci_probe()
240 			hcd->rsrc_len = pci_resource_len(dev, region);  in usb_hcd_pci_probe()
241 			if (devm_request_region(&dev->dev, hcd->rsrc_start,  in usb_hcd_pci_probe()
242 					hcd->rsrc_len, driver->description))  in usb_hcd_pci_probe()
257 		dev_set_drvdata(&dev->dev, hcd);  in usb_hcd_pci_probe()
258 		for_each_companion(dev, hcd, ehci_pre_add);  in usb_hcd_pci_probe()
259 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);  in usb_hcd_pci_probe()
262 		for_each_companion(dev, hcd, ehci_post_add);  in usb_hcd_pci_probe()
266 		dev_set_drvdata(&dev->dev, hcd);  in usb_hcd_pci_probe()
267 		retval = usb_add_hcd(hcd, hcd_irq, IRQF_SHARED);  in usb_hcd_pci_probe()
271 			for_each_companion(dev, hcd, non_ehci_add);  in usb_hcd_pci_probe()
277 	device_wakeup_enable(hcd->self.controller);  in usb_hcd_pci_probe()
284 	usb_put_hcd(hcd);  in usb_hcd_pci_probe()
313 	struct usb_hcd		*hcd;  in usb_hcd_pci_remove()  local
316 	hcd = pci_get_drvdata(dev);  in usb_hcd_pci_remove()
317 	if (!hcd)  in usb_hcd_pci_remove()
320 	hcd_driver_flags = hcd->driver->flags;  in usb_hcd_pci_remove()
330 	usb_hcd_irq(0, hcd);  in usb_hcd_pci_remove()
336 		for_each_companion(dev, hcd, ehci_remove);  in usb_hcd_pci_remove()
337 		usb_remove_hcd(hcd);  in usb_hcd_pci_remove()
343 		hcd->self.hs_companion = NULL;  in usb_hcd_pci_remove()
344 		usb_remove_hcd(hcd);  in usb_hcd_pci_remove()
348 	usb_put_hcd(hcd);  in usb_hcd_pci_remove()
361 	struct usb_hcd		*hcd;  in usb_hcd_pci_shutdown()  local
363 	hcd = pci_get_drvdata(dev);  in usb_hcd_pci_shutdown()
364 	if (!hcd)  in usb_hcd_pci_shutdown()
367 	if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags) &&  in usb_hcd_pci_shutdown()
368 			hcd->driver->shutdown) {  in usb_hcd_pci_shutdown()
369 		hcd->driver->shutdown(hcd);  in usb_hcd_pci_shutdown()
370 		if (usb_hcd_is_primary_hcd(hcd) && hcd->irq > 0)  in usb_hcd_pci_shutdown()
371 			free_irq(hcd->irq, hcd);  in usb_hcd_pci_shutdown()
402 	struct usb_hcd		*hcd = dev_get_drvdata(dev);  in check_root_hub_suspended()  local
404 	if (HCD_RH_RUNNING(hcd)) {  in check_root_hub_suspended()
408 	if (hcd->shared_hcd) {  in check_root_hub_suspended()
409 		hcd = hcd->shared_hcd;  in check_root_hub_suspended()
410 		if (HCD_RH_RUNNING(hcd)) {  in check_root_hub_suspended()
421 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in suspend_common()  local
436 	if (hcd->driver->pci_suspend && !HCD_DEAD(hcd)) {  in suspend_common()
440 		if (do_wakeup && HCD_WAKEUP_PENDING(hcd))  in suspend_common()
442 		if (do_wakeup && hcd->shared_hcd &&  in suspend_common()
443 				HCD_WAKEUP_PENDING(hcd->shared_hcd))  in suspend_common()
445 		retval = hcd->driver->pci_suspend(hcd, do_wakeup);  in suspend_common()
446 		suspend_report_result(dev, hcd->driver->pci_suspend, retval);  in suspend_common()
449 		if ((retval == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) ||  in suspend_common()
450 				(retval == 0 && do_wakeup && hcd->shared_hcd &&  in suspend_common()
451 				 HCD_WAKEUP_PENDING(hcd->shared_hcd))) {  in suspend_common()
452 			if (hcd->driver->pci_resume)  in suspend_common()
453 				hcd->driver->pci_resume(hcd, msg);  in suspend_common()
464 	if (!hcd->msix_enabled)  in suspend_common()
479 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in resume_common()  local
482 	if (HCD_RH_RUNNING(hcd) ||  in resume_common()
483 			(hcd->shared_hcd &&  in resume_common()
484 			 HCD_RH_RUNNING(hcd->shared_hcd))) {  in resume_common()
497 	if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) {  in resume_common()
505 			for_each_companion(pci_dev, hcd,  in resume_common()
508 		retval = hcd->driver->pci_resume(hcd, msg);  in resume_common()
511 			usb_hc_died(hcd);  in resume_common()
527 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in hcd_pci_suspend_noirq()  local
540 	if (HCD_DEAD(hcd))  in hcd_pci_suspend_noirq()
566 	struct usb_hcd		*hcd = pci_get_drvdata(pci_dev);  in hcd_pci_poweroff_late()  local
568 	if (hcd->driver->pci_poweroff_late && !HCD_DEAD(hcd))  in hcd_pci_poweroff_late()
569 		return hcd->driver->pci_poweroff_late(hcd, device_may_wakeup(dev));  in hcd_pci_poweroff_late()