From: Venki Pallipadi <venkatesh.pallipadi@intel.com>

Make usb autosuspend timers 1sec jiffy aligned.

This helps to reduce the frequency at which the CPU must be taken out of a
lower-power state.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/usb/core/driver.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN drivers/usb/core/driver.c~make-usb-autosuspend-timer-1-sec-jiffy-aligned drivers/usb/core/driver.c
--- a/drivers/usb/core/driver.c~make-usb-autosuspend-timer-1-sec-jiffy-aligned
+++ a/drivers/usb/core/driver.c
@@ -982,7 +982,7 @@ static int autosuspend_check(struct usb_
 			 * or for the past.
 			 */
 			queue_delayed_work(ksuspend_usb_wq, &udev->autosuspend,
-					suspend_time - jiffies);
+				round_jiffies_relative(suspend_time - jiffies));
 			}
 		return -EAGAIN;
 	}
_