[PATCH] usb: dwc3: support USB 3.1 controllers

[Caleb Connolly]

The revision is different for these, add the additional check as in
xhci-dwc3 core_init code.

Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
---
 drivers/usb/dwc3/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 96e850b7170f..db045f5822d4 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -594,9 +594,10 @@ static int dwc3_core_init(struct dwc3 *dwc)
 	int			ret;
 
 	reg = dwc3_readl(dwc->regs, DWC3_GSNPSID);
 	/* This should read as U3 followed by revision number */
-	if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) {
+	if ((reg & DWC3_GSNPSID_MASK) != 0x55330000 &&
+	    (reg & DWC3_GSNPSID_MASK) != 0x33310000) {
 		dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n");
 		ret = -ENODEV;
 		goto err0;
 	}
-- 
2.44.0