diff options
| author | Majunath Goudar <csmanjuvijay@gmail.com> | 2013-11-13 17:40:18 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-12-08 17:53:17 -0800 |
| commit | 0ded36d91821620e4e8f50fb9e47440988e06366 (patch) | |
| tree | 7f35ec9343db84b60bdae388bd92ffaf0edebba6 /drivers/usb/host/ohci-s3c2410.c | |
| parent | a9d3840ed3441d5996647b61b6e2ee630242989f (diff) | |
USB: OHCI: Properly handle ohci-s3c2410 suspend
Suspend scenario in case of ohci-s3c2410 glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-s3c2410 suspend scenario.
Calling explicitly the ohci_suspend()
routine in ohci_hcd_s3c2410_drv_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: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/ohci-s3c2410.c')
| -rw-r--r-- | drivers/usb/host/ohci-s3c2410.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index f90101b9cdb9..83cd1dcd5145 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -426,28 +426,15 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev) static int ohci_hcd_s3c2410_drv_suspend(struct device *dev) { struct usb_hcd *hcd = dev_get_drvdata(dev); - struct ohci_hcd *ohci = hcd_to_ohci(hcd); struct platform_device *pdev = to_platform_device(dev); - unsigned long flags; + bool do_wakeup = device_may_wakeup(dev); int rc = 0; - /* - * Root hub was already suspended. Disable irq emission and - * mark HW unaccessible, bail out if RH has been resumed. Use - * the spinlock to properly synchronize with possible pending - * RH suspend or resume activity. - */ - spin_lock_irqsave(&ohci->lock, flags); - if (ohci->rh_state != OHCI_RH_SUSPENDED) { - rc = -EINVAL; - goto bail; - } - - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + rc = ohci_suspend(hcd, do_wakeup); + if (rc) + return rc; s3c2410_stop_hc(pdev); -bail: - spin_unlock_irqrestore(&ohci->lock, flags); return rc; } |