[3/3] USB: xhci-hcd: Add get_resuming_ports method

[Alan Stern <stern@rowland.harvard.edu>]

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>
CC: Mathias Nyman <mathias.nyman@intel.com>
---


[as1869]




--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Index: usb-4.x/drivers/usb/host/xhci-hub.c
===================================================================
--- usb-4.x.orig/drivers/usb/host/xhci-hub.c
+++ usb-4.x/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 */
Index: usb-4.x/drivers/usb/host/xhci.c
===================================================================
--- usb-4.x.orig/drivers/usb/host/xhci.c
+++ usb-4.x/drivers/usb/host/xhci.c
@@ -5019,6 +5019,7 @@ static const struct hc_driver xhci_hc_dr
 	.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
Index: usb-4.x/drivers/usb/host/xhci.h
===================================================================
--- usb-4.x.orig/drivers/usb/host/xhci.h
+++ usb-4.x/drivers/usb/host/xhci.h
@@ -2104,9 +2104,11 @@ 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);