Merge tag 'for-usb-next-2012-05-21' of git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci into usb-next

xhci/usb: Build error fixes for 3.5

Hi Greg,

Here's four patches that fix the build errors introduced by the USB 3.0 Link PM
patches.  Please pull for inclusion in 3.5.

Sarah Sharp

2 files changed, 50 insertions, 30 deletions

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index fcc244e9056f..04fb834c3fa1 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3472,15 +3472,19 @@ int usb_disable_lpm(struct usb_device *udev)
 {
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_disable_lpm);
 
 void usb_enable_lpm(struct usb_device *udev) { }
+EXPORT_SYMBOL_GPL(usb_enable_lpm);
 
 int usb_unlocked_disable_lpm(struct usb_device *udev)
 {
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_unlocked_disable_lpm);
 
 void usb_unlocked_enable_lpm(struct usb_device *udev) { }
+EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm);
 #endif
 
 
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 4ceba145fa88..afdc73ee84a6 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3837,8 +3837,43 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 	return 0;
 }
 
+int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+	int		ret;
+
+	ret = xhci_usb2_software_lpm_test(hcd, udev);
+	if (!ret) {
+		xhci_dbg(xhci, "software LPM test succeed\n");
+		if (xhci->hw_lpm_support == 1) {
+			udev->usb2_hw_lpm_capable = 1;
+			ret = xhci_set_usb2_hardware_lpm(hcd, udev, 1);
+			if (!ret)
+				udev->usb2_hw_lpm_enabled = 1;
+		}
+	}
+
+	return 0;
+}
+
+#else
+
+int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
+				struct usb_device *udev, int enable)
+{
+	return 0;
+}
+
+int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+	return 0;
+}
+
+#endif /* CONFIG_USB_SUSPEND */
+
 /*---------------------- USB 3.0 Link PM functions ------------------------*/
 
+#ifdef CONFIG_PM
 /* Service interval in nanoseconds = 2^(bInterval - 1) * 125us * 1000ns / 1us */
 static unsigned long long xhci_service_interval_to_ns(
 		struct usb_endpoint_descriptor *desc)
@@ -3921,7 +3956,7 @@ static u16 xhci_calculate_intel_u1_timeout(struct usb_device *udev,
 		/* Otherwise the calculation is the same as isoc eps */
 	case USB_ENDPOINT_XFER_ISOC:
 		timeout_ns = xhci_service_interval_to_ns(desc);
-		timeout_ns = DIV_ROUND_UP(timeout_ns * 105, 100);
+		timeout_ns = DIV_ROUND_UP_ULL(timeout_ns * 105, 100);
 		if (timeout_ns < udev->u1_params.sel * 2)
 			timeout_ns = udev->u1_params.sel * 2;
 		break;
@@ -3930,7 +3965,7 @@ static u16 xhci_calculate_intel_u1_timeout(struct usb_device *udev,
 	}
 
 	/* The U1 timeout is encoded in 1us intervals. */
-	timeout_ns = DIV_ROUND_UP(timeout_ns, 1000);
+	timeout_ns = DIV_ROUND_UP_ULL(timeout_ns, 1000);
 	/* Don't return a timeout of zero, because that's USB3_LPM_DISABLED. */
 	if (timeout_ns == USB3_LPM_DISABLED)
 		timeout_ns++;
@@ -3969,7 +4004,7 @@ static u16 xhci_calculate_intel_u2_timeout(struct usb_device *udev,
 		timeout_ns = u2_del_ns;
 
 	/* The U2 timeout is encoded in 256us intervals */
-	timeout_ns = DIV_ROUND_UP(timeout_ns, 256 * 1000);
+	timeout_ns = DIV_ROUND_UP_ULL(timeout_ns, 256 * 1000);
 	/* If the necessary timeout value is bigger than what we can set in the
 	 * USB 3.0 hub, we have to disable hub-initiated U2.
 	 */
@@ -4287,41 +4322,22 @@ int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd,
 		return ret;
 	return 0;
 }
-/*-------------------------------------------------------------------------*/
-
-int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
-{
-	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
-	int		ret;
-
-	ret = xhci_usb2_software_lpm_test(hcd, udev);
-	if (!ret) {
-		xhci_dbg(xhci, "software LPM test succeed\n");
-		if (xhci->hw_lpm_support == 1) {
-			udev->usb2_hw_lpm_capable = 1;
-			ret = xhci_set_usb2_hardware_lpm(hcd, udev, 1);
-			if (!ret)
-				udev->usb2_hw_lpm_enabled = 1;
-		}
-	}
+#else /* CONFIG_PM */
 
-	return 0;
-}
-
-#else
-
-int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
-				struct usb_device *udev, int enable)
+int xhci_enable_usb3_lpm_timeout(struct usb_hcd *hcd,
+			struct usb_device *udev, enum usb3_link_state state)
 {
-	return 0;
+	return USB3_LPM_DISABLED;
 }
 
-int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
+int xhci_disable_usb3_lpm_timeout(struct usb_hcd *hcd,
+			struct usb_device *udev, enum usb3_link_state state)
 {
 	return 0;
 }
+#endif	/* CONFIG_PM */
 
-#endif /* CONFIG_USB_SUSPEND */
+/*-------------------------------------------------------------------------*/
 
 /* Once a hub descriptor is fetched for a device, we need to update the xHC's
  * internal data structures for the device.