diff options
Diffstat (limited to 'drivers/usb/host/xhci.c')
| -rw-r--r-- | drivers/usb/host/xhci.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b4aa79d154b2..d8f640b12dd9 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -466,7 +466,7 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci) * Systems: * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820 */ -static bool compliance_mode_recovery_timer_quirk_check(void) +bool xhci_compliance_mode_recovery_timer_quirk_check(void) { const char *dmi_product_name, *dmi_sys_vendor; @@ -517,7 +517,7 @@ int xhci_init(struct usb_hcd *hcd) xhci_dbg(xhci, "Finished xhci_init\n"); /* Initializing Compliance Mode Recovery Data If Needed */ - if (compliance_mode_recovery_timer_quirk_check()) { + if (xhci_compliance_mode_recovery_timer_quirk_check()) { xhci->quirks |= XHCI_COMP_MODE_QUIRK; compliance_mode_recovery_timer_init(xhci); } @@ -956,6 +956,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) struct usb_hcd *hcd = xhci_to_hcd(xhci); struct usb_hcd *secondary_hcd; int retval = 0; + bool comp_timer_running = false; /* Wait a bit if either of the roothubs need to settle from the * transition into bus suspend. @@ -993,6 +994,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) /* If restore operation fails, re-initialize the HC during resume */ if ((temp & STS_SRE) || hibernated) { + + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && + !(xhci_all_ports_seen_u0(xhci))) { + del_timer_sync(&xhci->comp_mode_recovery_timer); + xhci_dbg(xhci, "Compliance Mode Recovery Timer deleted!\n"); + } + /* Let the USB core know _both_ roothubs lost power. */ usb_root_hub_lost_power(xhci->main_hcd->self.root_hub); usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub); @@ -1035,6 +1043,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) retval = xhci_init(hcd->primary_hcd); if (retval) return retval; + comp_timer_running = true; + xhci_dbg(xhci, "Start the primary HCD\n"); retval = xhci_run(hcd->primary_hcd); if (!retval) { @@ -1076,7 +1086,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) * to suffer the Compliance Mode issue again. It doesn't matter if * ports have entered previously to U0 before system's suspension. */ - if (xhci->quirks & XHCI_COMP_MODE_QUIRK) + if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running) compliance_mode_recovery_timer_init(xhci); /* Re-enable port polling. */ |