Commit 89a9cc47 authored by Thinh Nguyen's avatar Thinh Nguyen Committed by Felipe Balbi
Browse files

usb: dwc3: Set default mode for DWC_usb3 v3.30a and higher 



DWC_usb31 and DWC_usb3 v3.30a and higher do 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: default avatarThinh Nguyen <thinhn@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent ceb94bc5

drivers/usb/dwc3/core.c

+5 −4
Original line number Diff line number Diff line
@@ -80,11 +80,12 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc) 
			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.

		 * DWC_usb31 and DWC_usb3 v3.30a and higher do 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))

		if (mode == USB_DR_MODE_OTG &&

		    dwc->revision >= DWC3_REVISION_330A)

			mode = USB_DR_MODE_PERIPHERAL;

	}

drivers/usb/dwc3/core.h

+1 −0
Original line number Diff line number Diff line
@@ -1107,6 +1107,7 @@ struct dwc3 { 
#define DWC3_REVISION_290A	0x5533290a

#define DWC3_REVISION_300A	0x5533300a

#define DWC3_REVISION_310A	0x5533310a

#define DWC3_REVISION_330A	0x5533330a



/*

 * NOTICE: we're using bit 31 as a "is usb 3.1" flag. This is really

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