Recent addition of vbus-supply support has broke platform which dont use
controllable regulators for USB.
Issue is that even withou DM_REGULATOR being enabled regulator related
functions will still build as there is a stub in regulator.h but they will
simply return -ENOSYS which will then make dwc3_generic_host_probe()
return the same error thus breaking probe.
So, check whether return code is -ENOSYS before erroring out.
Fixes: de451d5d5b6f ("usb: dwc3-generic: support external vbus regulator")
Signed-off-by: Robert Marko <robert.ma...@sartura.hr>
---
Changes in v2:
* Drop #ifdefs and check for -ENOSYS that regulator stub returns
drivers/usb/dwc3/dwc3-generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
index 7a00529a2a..df0b0b8c02 100644
--- a/drivers/usb/dwc3/dwc3-generic.c
+++ b/drivers/usb/dwc3/dwc3-generic.c
@@ -248,7 +248,7 @@ static int dwc3_generic_host_probe(struct udevice *dev)
/* Only returns an error if regulator is valid and failed to enable due
to a driver issue */
rc = regulator_set_enable_if_allowed(priv->vbus_supply, true);
- if (rc)
+ if (rc && rc != -ENOSYS)
return rc;
hccr = (struct xhci_hccr *)priv->gen_priv.base;
--
2.44.0
