1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index bf92d209a1a9..90245fd8bac4 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -97,6 +97,8 @@ struct ehci_hcd {			/* one per controller */
                         dedicated to the companion controller */
         unsigned long           owned_ports;            /* which ports are
                         owned by the companion during a bus suspend */
+        unsigned long           port_c_suspend;         /* which ports have
+                        the change-suspend feature turned on */
 
         /* per-HC memory pools (could be per-bus, but ...) */
         struct dma_pool         *qh_pool;       /* qh per active urb */
@@ -112,7 +114,6 @@ struct ehci_hcd {			/* one per controller */
         u32                     command;
 
         /* SILICON QUIRKS */
-        unsigned                is_tdi_rh_tt:1; /* TDI roothub with TT */
         unsigned                no_selective_suspend:1;
         unsigned                has_fsl_port_bug:1; /* FreeScale */
         unsigned                big_endian_mmio:1;
@@ -176,6 +177,15 @@ timer_action_done (struct ehci_hcd *ehci, enum ehci_timer_action action)
 static inline void
 timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
 {
+        /* Don't override timeouts which shrink or (later) disable
+         * the async ring; just the I/O watchdog.  Note that if a
+         * SHRINK were pending, OFF would never be requested.
+         */
+        if (timer_pending(&ehci->watchdog)
+                        && ((BIT(TIMER_ASYNC_SHRINK) | BIT(TIMER_ASYNC_OFF))
+                                & ehci->actions))
+                return;
+
         if (!test_and_set_bit (action, &ehci->actions)) {
                 unsigned long t;
 
@@ -191,15 +201,7 @@ timer_action (struct ehci_hcd *ehci, enum ehci_timer_action action)
                         t = EHCI_SHRINK_JIFFIES;
                         break;
                 }
-                t += jiffies;
-                // all timings except IAA watchdog can be overridden.
-                // async queue SHRINK often precedes IAA.  while it's ready
-                // to go OFF neither can matter, and afterwards the IO
-                // watchdog stops unless there's still periodic traffic.
-                if (time_before_eq(t, ehci->watchdog.expires)
-                                && timer_pending (&ehci->watchdog))
-                        return;
-                mod_timer (&ehci->watchdog, t);
+                mod_timer(&ehci->watchdog, t + jiffies);
         }
 }
 
@@ -678,7 +680,7 @@ struct ehci_fstn {
  * needed (mostly in root hub code).
  */
 
-#define ehci_is_TDI(e)                  ((e)->is_tdi_rh_tt)
+#define ehci_is_TDI(e)                  (ehci_to_hcd(e)->has_tt)
 
 /* Returns the speed of a device attached to a port on the root hub. */
 static inline unsigned int