diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-07 18:02:37 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-07 18:02:37 -0700 |
| commit | f8dd7a2a3a572dd93d7e84d628ffb25b3309179b (patch) | |
| tree | 9a8a379d256af73f9667b04500d47d313a30fdc6 /drivers/usb/host/xhci.c | |
| parent | d6759133e9815ef807b17dc752aff8c3771b7444 (diff) | |
| parent | cd3de83f147601356395b57a8673e9c5ff1e59d1 (diff) | |
Merge 3.16-rc4 into usb-next
We want the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 013aabb5b379..f07be65b4e70 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -936,7 +936,7 @@ int xhci_suspend(struct xhci_hcd *xhci) */ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) { - u32 command, temp = 0; + u32 command, temp = 0, status; struct usb_hcd *hcd = xhci_to_hcd(xhci); struct usb_hcd *secondary_hcd; int retval = 0; @@ -1054,8 +1054,12 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) done: if (retval == 0) { - usb_hcd_resume_root_hub(hcd); - usb_hcd_resume_root_hub(xhci->shared_hcd); + /* Resume root hubs only when have pending events. */ + status = readl(&xhci->op_regs->status); + if (status & STS_EINT) { + usb_hcd_resume_root_hub(hcd); + usb_hcd_resume_root_hub(xhci->shared_hcd); + } } /* |