dwc_usb31 does not support OTG mode. If the controller supports DRD but the dr_mode is not specified or set to OTG, then set the mode to peripheral.
Signed-off-by: Thinh Nguyen <[email protected]> --- drivers/usb/dwc3/core.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 21e4931d0cc0..64ba664d467c 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -78,6 +78,14 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc) mode = USB_DR_MODE_HOST; else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) mode = USB_DR_MODE_PERIPHERAL; + + /* + * dwc_usb31 does not support OTG mode. If the controller + * supports DRD but the dr_mode is not specified or set to OTG, + * then set the mode to peripheral. + */ + if (mode == USB_DR_MODE_OTG && dwc3_is_usb31(dwc)) + mode = USB_DR_MODE_PERIPHERAL; } if (mode != dwc->dr_mode) { -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
