usb: udc-uclass: Fixed problem when no alias is defined in DT

commit 801f1fa "dm: usb: udc: Use SEQ_ALIAS to index the USB gadget ports" changed the way the udevice if found. It uses the alias to find a udevice for a given USB port number. In the commit log it was stated that if no alias is provided, the bind order will be used instead. However it doesn't work. Fixing this by adding a call to uclass_get_device() if uclass_get_device_by_seq() fails. Signed-off-by: Jean-Jacques Hiblot <[email protected]> Tested-by: Vignesh R <[email protected]>
jannau · Mar 16, 2019 · e81d9de · e81d9de
1 parent 731785d
commit e81d9de
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/drivers/usb/gadget/udc/udc-uclass.c b/drivers/usb/gadget/udc/udc-uclass.c
@@ -23,8 +23,11 @@ int usb_gadget_initialize(int index)
 		return 0;
 	ret = uclass_get_device_by_seq(UCLASS_USB_GADGET_GENERIC, index, &dev);
 	if (!dev || ret) {
-		pr_err("No USB device found\n");
-		return -ENODEV;
+		ret = uclass_get_device(UCLASS_USB_GADGET_GENERIC, index, &dev);
+		if (!dev || ret) {
+			pr_err("No USB device found\n");
+			return -ENODEV;
+		}
 	}
 	dev_array[index] = dev;
 	return 0;