Suspend scenario in case of ohci-exynos glue was not
properly handled as it was not suspending generic part
of ohci controller.Calling explicitly the ohci_suspend()
routine in exynos_ohci_suspend() will ensure proper
handling of suspend scenario.
V2:
-Incase ohci_suspend() fails, return right away without
executing further.
Signed-off-by: Manjunath Goudar <manjunath.goudar@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Greg KH <greg@xxxxxxxxx>
Cc: linux-usb@xxxxxxxxxxxxxxx
---
drivers/usb/host/ohci-exynos.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 6ff830c..8fecb6a 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -203,9 +203,17 @@ static int exynos_ohci_suspend(struct device *dev)
struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
struct platform_device *pdev = to_platform_device(dev);
+ bool do_wakeup = device_may_wakeup(dev);
unsigned long flags;
int rc = 0;
+ rc = ohci_suspend(hcd, do_wakeup);
+ if (rc == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+ ohci_resume(hcd, false);
+ rc = -EBUSY;
+ }
+ if (rc)
+ return rc;
/*
* Root hub was already suspended. Disable irq emission and
* mark HW unaccessible, bail out if RH has been resumed. Use
--
1.7.9.5
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