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;
 }