commit b2bcfa17349e5a6a01170b5269ee261dbd762a0c
Author: Matthew Garrett <mjg@redhat.com>
Date:   Sat Jul 18 14:43:36 2009 +0100

    usb: enable autosuspend by default on qcserial
    
    All qcserial hardware supports autosuspend properly. Enable it by default.
    
    Signed-off-by: Matthew Garrett <mjg@redhat.com>

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 7528b8d..959a176 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -74,6 +74,8 @@ static int qcprobe(struct usb_serial *serial, const struct usb_device_id *id)
 	ifnum = serial->interface->cur_altsetting->desc.bInterfaceNumber;
 	dbg("This Interface = %d", ifnum);
 
+	usb_device_autosuspend_enable(serial->dev);
+
 	switch (nintf) {
 	case 1:
 		/* QDL mode */