Suspend scenario in case of ohci-da8xx glue was not
properly handled as it was not suspending generic part
of ohci controller.Calling explicitly the ohci_suspend()
routine in ohci_da8xx_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-da8xx.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 6aaa9c9..8d4914d 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -406,10 +406,21 @@ static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev)
}
#ifdef CONFIG_PM
-static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message)
+static int ohci_da8xx_suspend(struct platform_device *pdev,
+ pm_message_t message)
{
- struct usb_hcd *hcd = platform_get_drvdata(dev);
+ 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;
+
+ ret = ohci_suspend(hcd, do_wakeup);
+ if (ret == 0 && do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+ ohci_resume(hcd, false);
+ ret = -EBUSY;
+ }
+ if (ret)
+ return ret;
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
@@ -417,8 +428,8 @@ static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message)
ohci_da8xx_clock(0);
hcd->state = HC_STATE_SUSPENDED;
- dev->dev.power.power_state = PMSG_SUSPEND;
- return 0;
+ pdev->dev.power.power_state = PMSG_SUSPEND;
+ return ret;
}
static int ohci_da8xx_resume(struct platform_device *dev)
--
1.7.9.5
--
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