diff options
| author | Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2018-07-26 22:52:11 +0200 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-07-30 09:39:17 +0200 |
| commit | a77004681148f5773c20370812ca7d14443fb091 (patch) | |
| tree | 874050fa182af9f7df33d59c845863ed4750daa9 /drivers/usb/dwc3 | |
| parent | usb: gadget: udc: renesas_usb3: Add register of usb role switch (diff) | |
| download | linux-a77004681148f5773c20370812ca7d14443fb091.tar.xz linux-a77004681148f5773c20370812ca7d14443fb091.zip | |
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>
Diffstat (limited to 'drivers/usb/dwc3')
| -rw-r--r-- | drivers/usb/dwc3/core.c | 8 |
1 files changed, 8 insertions, 0 deletions
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) { |