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 <thinhn@xxxxxxxxxxxx>
---
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
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