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authorMajunath Goudar <csmanjuvijay@gmail.com>2013-11-13 16:10:19 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-09 05:53:17 +0400
commit933bb1f0442ea1c15e7d9d23894d8dd4937bdf95 (patch)
tree2bd162107bacac22d3ac509be8edca989129a32d
parent0ded36d91821620e4e8f50fb9e47440988e06366 (diff)
downloadlinux-933bb1f0442ea1c15e7d9d23894d8dd4937bdf95.tar.xz
USB: OHCI: Properly handle ohci-da8xx suspend
Suspend scenario in case of ohci-da8xx glue was not properly handled as it was not suspending generic part of ohci controller. Alan Stern suggested, properly handle ohci-da8xx suspend scenario. Calling explicitly the ohci_suspend() routine in ohci_da8xx_suspend() will ensure proper handling of suspend scenario. Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-usb@vger.kernel.or Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/host/ohci-da8xx.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 9be59f11e051..71dbd85e9a8d 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -406,19 +406,27 @@ 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;
+
if (time_before(jiffies, ohci->next_statechange))
msleep(5);
ohci->next_statechange = jiffies;
+ ret = ohci_suspend(hcd, do_wakeup);
+ if (ret)
+ return ret;
+
ohci_da8xx_clock(0);
hcd->state = HC_STATE_SUSPENDED;
- dev->dev.power.power_state = PMSG_SUSPEND;
- return 0;
+
+ return ret;
}
static int ohci_da8xx_resume(struct platform_device *dev)