diff options
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index f7efe025bed..bb668a894ab 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -116,6 +116,30 @@ static int xhci_pci_setup(struct usb_hcd *hcd) return xhci_pci_reinit(xhci, pdev); } +#ifdef CONFIG_PM +static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int retval = 0; + + if (hcd->state != HC_STATE_SUSPENDED) + return -EINVAL; + + retval = xhci_suspend(xhci); + + return retval; +} + +static int xhci_pci_resume(struct usb_hcd *hcd, bool hibernated) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + int retval = 0; + + retval = xhci_resume(xhci, hibernated); + return retval; +} +#endif /* CONFIG_PM */ + static const struct hc_driver xhci_pci_hc_driver = { .description = hcd_name, .product_desc = "xHCI Host Controller", @@ -132,7 +156,10 @@ static const struct hc_driver xhci_pci_hc_driver = { */ .reset = xhci_pci_setup, .start = xhci_run, - /* suspend and resume implemented later */ +#ifdef CONFIG_PM + .pci_suspend = xhci_pci_suspend, + .pci_resume = xhci_pci_resume, +#endif .stop = xhci_stop, .shutdown = xhci_shutdown, @@ -152,7 +179,7 @@ static const struct hc_driver xhci_pci_hc_driver = { .reset_bandwidth = xhci_reset_bandwidth, .address_device = xhci_address_device, .update_hub_device = xhci_update_hub_device, - .reset_device = xhci_reset_device, + .reset_device = xhci_discover_or_reset_device, /* * scheduling support @@ -162,6 +189,8 @@ static const struct hc_driver xhci_pci_hc_driver = { /* Root hub support */ .hub_control = xhci_hub_control, .hub_status_data = xhci_hub_status_data, + .bus_suspend = xhci_bus_suspend, + .bus_resume = xhci_bus_resume, }; /*-------------------------------------------------------------------------*/ @@ -186,6 +215,11 @@ static struct pci_driver xhci_pci_driver = { /* suspend and resume implemented later */ .shutdown = usb_hcd_pci_shutdown, +#ifdef CONFIG_PM_SLEEP + .driver = { + .pm = &usb_hcd_pci_pm_ops + }, +#endif }; int xhci_register_pci(void) |