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| author | Mathias Nyman <mathias.nyman@linux.intel.com> | 2018-04-19 19:05:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-22 16:19:26 +0200 |
| commit | a2d49572e11ef54f854f6b7db48846286b1676d5 (patch) | |
| tree | 9d03b14a74286c01be5e1b4c39b574bd568623dc /drivers/usb/core | |
| parent | 013eedb8c56e55549c45df19ca56a029cc804028 (diff) | |
| download | linux-stable-a2d49572e11ef54f854f6b7db48846286b1676d5.tar.gz linux-stable-a2d49572e11ef54f854f6b7db48846286b1676d5.tar.bz2 linux-stable-a2d49572e11ef54f854f6b7db48846286b1676d5.zip | |
usb: set root hub lane counts
Set the the rx_lane and tx_lane count to "2" for USB 3.2 hosts.
For all other older hosts set the default lane counts to 1
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core')
| -rw-r--r-- | drivers/usb/core/hcd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 5a799f84dcc2..ac5bcf449d7d 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -2793,6 +2793,9 @@ int usb_add_hcd(struct usb_hcd *hcd, hcd->self.root_hub = rhdev; mutex_unlock(&usb_port_peer_mutex); + rhdev->rx_lanes = 1; + rhdev->tx_lanes = 1; + switch (hcd->speed) { case HCD_USB11: rhdev->speed = USB_SPEED_FULL; @@ -2807,6 +2810,8 @@ int usb_add_hcd(struct usb_hcd *hcd, rhdev->speed = USB_SPEED_SUPER; break; case HCD_USB32: + rhdev->rx_lanes = 2; + rhdev->tx_lanes = 2; case HCD_USB31: rhdev->speed = USB_SPEED_SUPER_PLUS; break; |