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USB: xhci-hcd: Add get_resuming_ports method

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This patch adds support for the new get_resuming_ports HCD method to
the xhci-hcd driver.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Stern 2018-06-08 16:59:57 -04:00 committed by Greg Kroah-Hartman
parent 00d423c8d0
commit 8f9cc83c06
3 changed files with 14 additions and 0 deletions
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11
drivers/usb/host/xhci-hub.c
View File

@ -1684,4 +1684,15 @@ int xhci_bus_resume(struct usb_hcd *hcd)
return 0;
}
unsigned long xhci_get_resuming_ports(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_bus_state *bus_state;
bus_state = &xhci->bus_state[hcd_index(hcd)];
/* USB3 port wakeups are reported via usb_wakeup_notification() */
return bus_state->resuming_ports; /* USB2 ports only */
}
#endif /* CONFIG_PM */

1
drivers/usb/host/xhci.c
View File

@ -5081,6 +5081,7 @@ static const struct hc_driver xhci_hc_driver = {
.hub_status_data = xhci_hub_status_data,
.bus_suspend = xhci_bus_suspend,
.bus_resume = xhci_bus_resume,
.get_resuming_ports = xhci_get_resuming_ports,
/*
* call back when device connected and addressed

2
drivers/usb/host/xhci.h
View File

@ -2110,9 +2110,11 @@ void xhci_hc_died(struct xhci_hcd *xhci);
#ifdef CONFIG_PM
int xhci_bus_suspend(struct usb_hcd *hcd);
int xhci_bus_resume(struct usb_hcd *hcd);
unsigned long xhci_get_resuming_ports(struct usb_hcd *hcd);
#else
#define xhci_bus_suspend NULL
#define xhci_bus_resume NULL
#define xhci_get_resuming_ports NULL
#endif /* CONFIG_PM */
u32 xhci_port_state_to_neutral(u32 state);