USB: OHCI: Properly handle ohci-at91 suspend

Suspend scenario in case of ohci-at91 glue was not properly handled
as it was not suspending generic part of ohci controller. Alan Stern
suggested, properly handle ohci-at91 suspend scenario.

Calling explicitly the ohci_suspend() routine in ohci_hcd_at91_drv_suspend()
will ensure proper handling of suspend scenario. This task is sugested
by Alan Stern.

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>

1 files changed, 8 insertions, 2 deletions

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 476b5a5baf25..f2d840370a87 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -636,8 +636,14 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
         struct usb_hcd  *hcd = platform_get_drvdata(pdev);
         struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+        bool            do_wakeup = device_may_wakeup(&pdev->dev);
+        int             ret;
 
-        if (device_may_wakeup(&pdev->dev))
+        ret = ohci_suspend(hcd, do_wakeup);
+        if (ret)
+                return ret;
+
+        if (do_wakeup)
                 enable_irq_wake(hcd->irq);
 
         /*
@@ -658,7 +664,7 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
                 at91_stop_clock();
         }
 
-        return 0;
+        return ret;
 }
 
 static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)