Per xHCI spec chapter 6.2.2 table 6-7, as input, software shall initialize the dev_state field to '0'. Though this does not seem to cause any issue with most xHC implementations, let's do this to conform with the spec.
Signed-off-by: Bin Meng <[email protected]> Tested-by: Marek Vasut <[email protected]> Tested-by: Matthias Blankertz <[email protected]> --- drivers/usb/host/xhci.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 565948c..8c1126e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1452,6 +1452,7 @@ static int xhci_update_hub_device(struct udevice *dev, struct usb_device *udev) think_time = (think_time / 666) - 1; if (udev->speed == USB_SPEED_HIGH) slot_ctx->tt_info |= cpu_to_le32(TT_THINK_TIME(think_time)); + slot_ctx->dev_state = 0; return xhci_configure_endpoints(udev, false); } -- 2.7.4 _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
