diff options
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 3 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 3 | ||||
| -rw-r--r-- | drivers/usb/storage/uas-detect.h | 4 | ||||
| -rw-r--r-- | include/linux/usb/hcd.h | 1 |
4 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6c03584ac15f..cbf0c5cffc92 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -222,6 +222,9 @@ static int xhci_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) goto put_usb3_hcd; /* Roothub already marked as USB 3.0 speed */ + if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + xhci->shared_hcd->can_do_streams = 1; + return 0; put_usb3_hcd: diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 8affef910782..151901ce1ba9 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -158,6 +158,9 @@ static int xhci_plat_probe(struct platform_device *pdev) */ *((struct xhci_hcd **) xhci->shared_hcd->hcd_priv) = xhci; + if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + xhci->shared_hcd->can_do_streams = 1; + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) goto put_usb3_hcd; diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h index b8a02e12a8a2..bb05b984d5f6 100644 --- a/drivers/usb/storage/uas-detect.h +++ b/drivers/usb/storage/uas-detect.h @@ -72,6 +72,7 @@ static int uas_use_uas_driver(struct usb_interface *intf, { struct usb_host_endpoint *eps[4] = { }; struct usb_device *udev = interface_to_usbdev(intf); + struct usb_hcd *hcd = bus_to_hcd(udev->bus); unsigned long flags = id->driver_info; int r, alt; @@ -80,6 +81,9 @@ static int uas_use_uas_driver(struct usb_interface *intf, if (flags & US_FL_IGNORE_UAS) return 0; + if (udev->speed >= USB_SPEED_SUPER && !hcd->can_do_streams) + return 0; + alt = uas_find_uas_alt_setting(intf); if (alt < 0) return 0; diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h index efe8d8a7c7ad..485cd5e2100c 100644 --- a/include/linux/usb/hcd.h +++ b/include/linux/usb/hcd.h @@ -143,6 +143,7 @@ struct usb_hcd { unsigned authorized_default:1; unsigned has_tt:1; /* Integrated TT in root hub */ unsigned amd_resume_bug:1; /* AMD remote wakeup quirk */ + unsigned can_do_streams:1; /* HC supports streams */ unsigned int irq; /* irq allocated */ void __iomem *regs; /* device memory/io */ |