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[V4,02/11] USB: OHCI: Properly handle ohci-at91 suspend

Message ID 1374749640-30062-3-git-send-email-manjunath.goudar@linaro.org
State New
Headers show

Commit Message

manjunath.goudar@linaro.org July 25, 2013, 10:53 a.m. UTC 
Suspend scenario in case of ohci-at91 glue was not properly
handled as it was not suspending generic part of ohci controller.
Calling explicitly the ohci_suspend() routine in ohci_hcd_at91_drv_suspend()
will ensure proper handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg KH <greg@kroah.com>
Cc: linux-usb@vger.kernel.org

V2:
  -Incase ohci_suspend() fails, return right away without executing further.

V3:
  -Aligned variable "do_wakeup" and "ret".

V4:
  - No change.
---
 drivers/usb/host/ohci-at91.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
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Patch

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 08e28eb..008645c 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -618,8 +618,14 @@  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);
 
 	/*
@@ -640,7 +646,7 @@  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)