1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index f8030ee928e8..f72ae0b6ee7f 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -94,7 +94,8 @@ static const char	hcd_name [] = "ehci_hcd";
 #define EHCI_IAA_MSECS		10		/* arbitrary */
 #define EHCI_IO_JIFFIES		(HZ/10)		/* io watchdog > irq_thresh */
 #define EHCI_ASYNC_JIFFIES	(HZ/20)		/* async idle timeout */
-#define EHCI_SHRINK_FRAMES	5		/* async qh unlink delay */
+#define EHCI_SHRINK_JIFFIES	(DIV_ROUND_UP(HZ, 200) + 1)
+						/* 200-ms async qh unlink delay */
 
 /* Initial IRQ latency:  faster than hw default */
 static int log2_irq_thresh = 0;		// 0 to 6
@@ -114,7 +115,7 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
 /* for link power management(LPM) feature */
 static unsigned int hird;
 module_param(hird, int, S_IRUGO);
-MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us\n");
+MODULE_PARM_DESC(hird, "host initiated resume duration, +1 for each 75us");
 
 #define	INTR_MASK (STS_IAA | STS_FATAL | STS_PCD | STS_ERR | STS_INT)
 
@@ -152,10 +153,7 @@ timer_action(struct ehci_hcd *ehci, enum ehci_timer_action action)
 			break;
 		/* case TIMER_ASYNC_SHRINK: */
 		default:
-			/* add a jiffie since we synch against the
-			 * 8 KHz uframe counter.
-			 */
-			t = DIV_ROUND_UP(EHCI_SHRINK_FRAMES * HZ, 1000) + 1;
+			t = EHCI_SHRINK_JIFFIES;
 			break;
 		}
 		mod_timer(&ehci->watchdog, t + jiffies);
@@ -340,6 +338,7 @@ static void ehci_work(struct ehci_hcd *ehci);
 #include "ehci-mem.c"
 #include "ehci-q.c"
 #include "ehci-sched.c"
+#include "ehci-sysfs.c"
 
 /*-------------------------------------------------------------------------*/
 
@@ -524,7 +523,7 @@ static void ehci_stop (struct usb_hcd *hcd)
 	ehci_reset (ehci);
 	spin_unlock_irq(&ehci->lock);
 
-	remove_companion_file(ehci);
+	remove_sysfs_files(ehci);
 	remove_debug_files (ehci);
 
 	/* root hub is shut down separately (first, when possible) */
@@ -575,6 +574,12 @@ static int ehci_init(struct usb_hcd *hcd)
 	hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params);
 
 	/*
+	 * by default set standard 80% (== 100 usec/uframe) max periodic
+	 * bandwidth as required by USB 2.0
+	 */
+	ehci->uframe_periodic_max = 100;
+
+	/*
 	 * hw default: 1K periodic list heads, one per frame.
 	 * periodic_size can shrink by USBCMD update if hcc_params allows.
 	 */
@@ -758,7 +763,7 @@ static int ehci_run (struct usb_hcd *hcd)
 	 * since the class device isn't created that early.
 	 */
 	create_debug_files(ehci);
-	create_companion_file(ehci);
+	create_sysfs_files(ehci);
 
 	return 0;
 }