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[v2,3/6] usb: set root hub lane counts

Message ID 1524153955-7905-4-git-send-email-mathias.nyman@linux.intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mathias Nyman April 19, 2018, 4:05 p.m. UTC 
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>
---
 drivers/usb/core/hcd.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index b1463aa..09a6774 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2814,6 +2814,9 @@  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;
@@ -2828,6 +2831,8 @@  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;