DO NOT SUBMIT: usb: dwc3: Add "apple,t8103-dwc3" compatible

The upstream submission likely will use an apple specific glue driver
and thus can not use "snps,dwc3" as fallback compatible.
Add "apple,t8103-dwc3" now as additional compatible so that the
downstream kernel keeps working with the upstream device trees.

Signed-off-by: Janne Grunau <j@jannau.net>

Author: jannau

drivers/usb/dwc3/core.c

@@ -2256,7 +2256,8 @@ static int dwc3_probe(struct platform_device *pdev)
 		goto err_put_psy;
 
 	if (dev->of_node) {
-		if (of_device_is_compatible(dev->of_node, "apple,dwc3")) {
+		if (of_device_is_compatible(dev->of_node, "apple,dwc3") ||
+		    of_device_is_compatible(dev->of_node, "apple,t8103-dwc3")) {
 			if (!IS_ENABLED(CONFIG_USB_ROLE_SWITCH) ||
 			    !IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) {
 				dev_err(dev,
@@ -2742,6 +2743,10 @@ static const struct of_device_id of_dwc3_match[] = {
 	{
 		.compatible = "synopsys,dwc3"
 	},
+	/* downstream forwards compatible for upstream dt-bindings */
+	{
+		.compatible = "apple,t8103-dwc3"
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, of_dwc3_match);