USB: OHCI: Properly handle ohci-pxa27x suspend

Suspend scenario in case of ohci-pxa27x glue was not
properly handled as it was not suspending generic part
of ohci controller.  Alan Stern suggested, properly
handle ohci-pxa27x suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_hcd_pxa27x_drv_suspend() will ensure proper
handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ohci-pxa27x.c

@@ -509,13 +509,20 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(dev);
+	int ret;
+
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	pxa27x_stop_hc(pxa_ohci, dev);
-	return 0;
+	return ret;
 }
 
 static int ohci_hcd_pxa27x_drv_resume(struct device *dev)