X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fusb%2Fhost%2Fehci-hub.c;h=69b0b9be7a641fbdd670bb19683e684b7fe45db0;hb=489447380a2921ec0e9154f773c44ab3167ede4b;hp=18d3f22703160af0c8ac55fd8f425a5d20e8c369;hpb=0d9136fdbcdbddcd4eb5ac94c248c039193d4795;p=linux-2.6

diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index 18d3f22703..69b0b9be7a 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -30,7 +30,7 @@
 
 #ifdef	CONFIG_PM
 
-static int ehci_hub_suspend (struct usb_hcd *hcd)
+static int ehci_bus_suspend (struct usb_hcd *hcd)
 {
 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
 	int			port;
@@ -59,7 +59,7 @@ static int ehci_hub_suspend (struct usb_hcd *hcd)
 
 		if ((t1 & PORT_PE) && !(t1 & PORT_OWNER))
 			t2 |= PORT_SUSPEND;
-		if (hcd->remote_wakeup)
+		if (device_may_wakeup(&hcd->self.root_hub->dev))
 			t2 |= PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E;
 		else
 			t2 &= ~(PORT_WKOC_E|PORT_WKDISC_E|PORT_WKCONN_E);
@@ -83,7 +83,7 @@ static int ehci_hub_suspend (struct usb_hcd *hcd)
 
 
 /* caller has locked the root hub, and should reset/reinit on error */
-static int ehci_hub_resume (struct usb_hcd *hcd)
+static int ehci_bus_resume (struct usb_hcd *hcd)
 {
 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
 	u32			temp;
@@ -94,6 +94,13 @@ static int ehci_hub_resume (struct usb_hcd *hcd)
 		msleep(5);
 	spin_lock_irq (&ehci->lock);
 
+	/* Ideally and we've got a real resume here, and no port's power
+	 * was lost.  (For PCI, that means Vaux was maintained.)  But we
+	 * could instead be restoring a swsusp snapshot -- so that BIOS was
+	 * the last user of the controller, not reset/pm hardware keeping
+	 * state we gave to it.
+	 */
+
 	/* re-init operational registers in case we lost power */
 	if (readl (&ehci->regs->intr_enable) == 0) {
  		/* at least some APM implementations will try to deliver
@@ -159,8 +166,8 @@ static int ehci_hub_resume (struct usb_hcd *hcd)
 
 #else
 
-#define ehci_hub_suspend	NULL
-#define ehci_hub_resume		NULL
+#define ehci_bus_suspend	NULL
+#define ehci_bus_resume		NULL
 
 #endif	/* CONFIG_PM */
 
@@ -510,7 +517,7 @@ static int ehci_hub_control (
 			if ((temp & PORT_PE) == 0
 					|| (temp & PORT_RESET) != 0)
 				goto error;
-			if (hcd->remote_wakeup)
+			if (device_may_wakeup(&hcd->self.root_hub->dev))
 				temp |= PORT_WAKE_BITS;
 			writel (temp | PORT_SUSPEND,
 				&ehci->regs->port_status [wIndex]);