[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.conno...@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