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usb: dwc3: Set default mode for dwc_usb31 

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@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
This commit is contained in:
Thinh Nguyen 2018-07-26 13:52:11 -07:00 committed by Felipe Balbi
parent 39facfa01c
commit a770046811
1 changed files with 8 additions and 0 deletions
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8
drivers/usb/dwc3/core.c
View File

@ -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) {