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authorAlan Stern <stern@rowland.harvard.edu>2018-06-08 23:59:57 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-06-25 16:44:43 +0300
commit8f9cc83c06d44081d7c7e179f778cbeb4d074fa7 (patch)
treecc994e13b3bae9d093f5788999688f8337840fd9
parent00d423c8d0132915f4204b330343420c271b9142 (diff)
USB: xhci-hcd: Add get_resuming_ports method
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>
-rw-r--r--drivers/usb/host/xhci-hub.c11
-rw-r--r--drivers/usb/host/xhci.c1
-rw-r--r--drivers/usb/host/xhci.h2
3 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index a4b95d019f84..7e2a531ba321 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -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 */
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 8c8da2d657fa..2f239cb3deaf 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -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
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 939e2f86b595..ece5891240f0 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -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);