3 files changed, 23 insertions, 7 deletions

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index c978d622fa8a..177e78ed241b 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -156,7 +156,7 @@ config USB_OHCI_HCD_PCI
 
 config USB_OHCI_HCD_SSB
         bool "OHCI support for Broadcom SSB OHCI core"
-        depends on USB_OHCI_HCD && SSB && EXPERIMENTAL
+        depends on USB_OHCI_HCD && (SSB = y || SSB = CONFIG_USB_OHCI_HCD) && EXPERIMENTAL
         default n
         ---help---
           Support for the Sonics Silicon Backplane (SSB) attached
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 240c7f507541..704f33fdd2f1 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -80,7 +80,10 @@ static const char	hcd_name [] = "ohci_hcd";
 static void ohci_dump (struct ohci_hcd *ohci, int verbose);
 static int ohci_init (struct ohci_hcd *ohci);
 static void ohci_stop (struct usb_hcd *hcd);
+
+#if defined(CONFIG_PM) || defined(CONFIG_PCI)
 static int ohci_restart (struct ohci_hcd *ohci);
+#endif
 
 #include "ohci-hub.c"
 #include "ohci-dbg.c"
@@ -396,7 +399,7 @@ static int check_ed(struct ohci_hcd *ohci, struct ed *ed)
  */
 static void unlink_watchdog_func(unsigned long _ohci)
 {
-        long            flags;
+        unsigned long   flags;
         unsigned        max;
         unsigned        seen_count = 0;
         unsigned        i;
@@ -893,6 +896,8 @@ static void ohci_stop (struct usb_hcd *hcd)
 
 /*-------------------------------------------------------------------------*/
 
+#if defined(CONFIG_PM) || defined(CONFIG_PCI)
+
 /* must not be called from interrupt context */
 static int ohci_restart (struct ohci_hcd *ohci)
 {
@@ -954,6 +959,8 @@ static int ohci_restart (struct ohci_hcd *ohci)
         return 0;
 }
 
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 #define DRIVER_INFO DRIVER_VERSION " " DRIVER_DESC
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index e5d60d5b105a..60379b17bbc1 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1271,7 +1271,8 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
         } else if (qh->period != urb->interval) {
                 return -EINVAL;         /* Can't change the period */
 
-        } else {        /* Pick up where the last URB leaves off */
+        } else {
+                /* Find the next unused frame */
                 if (list_empty(&qh->queue)) {
                         frame = qh->iso_frame;
                 } else {
@@ -1283,10 +1284,18 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb,
                                         lurb->number_of_packets *
                                         lurb->interval;
                 }
-                if (urb->transfer_flags & URB_ISO_ASAP)
-                        urb->start_frame = frame;
-                else if (urb->start_frame != frame)
-                        return -EINVAL;
+                if (urb->transfer_flags & URB_ISO_ASAP) {
+                        /* Skip some frames if necessary to insure
+                         * the start frame is in the future.
+                         */
+                        uhci_get_current_frame_number(uhci);
+                        if (uhci_frame_before_eq(frame, uhci->frame_number)) {
+                                frame = uhci->frame_number + 1;
+                                frame += ((qh->phase - frame) &
+                                        (qh->period - 1));
+                        }
+                }       /* Otherwise pick up where the last URB leaves off */
+                urb->start_frame = frame;
         }
 
         /* Make sure we won't have to go too far into the future */