diff options
| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2015-10-01 15:40:38 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 09:34:17 (GMT) |
| commit | b50107bb83d027dfd36bb7efb90570559757d6ae (patch) | |
| tree | bfdf003f25884dd1e25fea40f80fdb2eb66808be /drivers/usb/host/xhci-ring.c | |
| parent | 7117522520b9101af7a0602d6b0d1e67d689fc6b (diff) | |
| download | linux-b50107bb83d027dfd36bb7efb90570559757d6ae.tar.xz | |
xhci: check xhci hardware for USB 3.1 support
Set the controller speed to HCD_USB31 to if host hardware supports USB 3.1
For PCI xhci controllers the USB 3.1 support is checked from SBRN bits in
pci config space. Platform controllers will need to set xhci->sbrn == 0x31
to indicate USB 3.1 support before calling xhci_gen_setup().
Also make sure xhci driver works correctly with speed set to HCD_USB31
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 0e5aa87..48d2d40 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1453,7 +1453,7 @@ static unsigned int find_faked_portnum_from_hw_portnum(struct usb_hcd *hcd, * 1.1 ports are under the USB 2.0 hub. If the port speed * matches the device speed, it's a similar speed port. */ - if ((port_speed == 0x03) == (hcd->speed == HCD_USB3)) + if ((port_speed == 0x03) == (hcd->speed >= HCD_USB3)) num_similar_speed_ports++; } return num_similar_speed_ports; @@ -1515,7 +1515,7 @@ static void handle_port_status(struct xhci_hcd *xhci, /* Find the right roothub. */ hcd = xhci_to_hcd(xhci); - if ((major_revision == 0x03) != (hcd->speed == HCD_USB3)) + if ((major_revision == 0x03) != (hcd->speed >= HCD_USB3)) hcd = xhci->shared_hcd; if (major_revision == 0) { @@ -1541,7 +1541,7 @@ static void handle_port_status(struct xhci_hcd *xhci, * correct bus_state structure. */ bus_state = &xhci->bus_state[hcd_index(hcd)]; - if (hcd->speed == HCD_USB3) + if (hcd->speed >= HCD_USB3) port_array = xhci->usb3_ports; else port_array = xhci->usb2_ports; @@ -1555,7 +1555,7 @@ static void handle_port_status(struct xhci_hcd *xhci, usb_hcd_resume_root_hub(hcd); } - if (hcd->speed == HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE) + if (hcd->speed >= HCD_USB3 && (temp & PORT_PLS_MASK) == XDEV_INACTIVE) bus_state->port_remote_wakeup &= ~(1 << faked_port_index); if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_RESUME) { @@ -1633,7 +1633,7 @@ static void handle_port_status(struct xhci_hcd *xhci, goto cleanup; } - if (hcd->speed != HCD_USB3) + if (hcd->speed < HCD_USB3) xhci_test_and_clear_bit(xhci, port_array, faked_port_index, PORT_PLC); |