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| author | Alex Shi <alex.shi@linaro.org> | 2014-07-10 14:11:09 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2014-07-10 14:11:09 +0800 |
| commit | d8e045867020ad8d258b1c21ae86930f5449bfd3 (patch) | |
| tree | ed9d3e8562dfce617c25ba3d51c54d359221a363 /drivers/usb/host | |
| parent | 9e63e819393e3d7d4d71b50b02b3996d0f422902 (diff) | |
| parent | c0cbbdebe91a944d653ca75670b77bbf57498150 (diff) | |
Merge tag 'v3.14.12' into linux-linaro-lsk-v3.14
This is the 3.14.12 stable release
Diffstat (limited to 'drivers/usb/host')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 9 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 10 |
2 files changed, 13 insertions, 6 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index dff9b5ead3b3..65091d9aa997 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1578,8 +1578,11 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, xhci_handle_cmd_reset_ep(xhci, slot_id, cmd_trb, cmd_comp_code); break; case TRB_RESET_DEV: - WARN_ON(slot_id != TRB_TO_SLOT_ID( - le32_to_cpu(cmd_trb->generic.field[3]))); + /* SLOT_ID field in reset device cmd completion event TRB is 0. + * Use the SLOT_ID from the command TRB instead (xhci 4.6.11) + */ + slot_id = TRB_TO_SLOT_ID( + le32_to_cpu(cmd_trb->generic.field[3])); xhci_handle_cmd_reset_dev(xhci, slot_id, event); break; case TRB_NEC_GET_FW: @@ -3663,7 +3666,7 @@ static unsigned int xhci_get_burst_count(struct xhci_hcd *xhci, return 0; max_burst = urb->ep->ss_ep_comp.bMaxBurst; - return roundup(total_packet_count, max_burst + 1) - 1; + return DIV_ROUND_UP(total_packet_count, max_burst + 1) - 1; } /* diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index cca289667cf6..ab831048e8a4 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -928,7 +928,7 @@ 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; @@ -1046,8 +1046,12 @@ 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); + } } /* |