usb: dwc3: Fix non-usb3 configurations

Missing nodes may also be signaled via -ENODATA. We need to check for
that to prevent failing in non-usb3 setups.

Furthermore, dev.phy must be NULL'ed in case usb3-phy was not found.

Fixes: 142d50fbce7c ("usb: dwc3: Add support for usb3-phy PHY configuration")
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 6e1a1d0..c5310e4 100644 (file)
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -468,9 +468,11 @@ static int dwc3_glue_probe(struct udevice *dev)
                ret = generic_phy_init(&phy);
                if (ret)
                        return ret;
-       } else if (ret != -ENOENT) {
+       } else if (ret != -ENOENT && ret != -ENODATA) {
                debug("could not get phy (err %d)\n", ret);
                return ret;
+       } else {
+               phy.dev = NULL;
        }
 
        glue->regs = dev_read_addr(dev);