Merge branch 'linus' into tracing/mmiotrace

1 files changed, 13 insertions, 11 deletions

diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index bf92d209a1a..90245fd8bac 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