diff --git a/drivers/platform/chrome/cros_usbpd_notify.c b/drivers/platform/chrome/cros_usbpd_notify.c
index 6f5eea4938cb..25da31ec1996 100644
--- a/drivers/platform/chrome/cros_usbpd_notify.c
+++ b/drivers/platform/chrome/cros_usbpd_notify.c
@@ -110,26 +110,29 @@ static int cros_usbpd_notify_probe_acpi(struct platform_device *pdev)
 	if (!pdnotify)
 		return -ENOMEM;
 
-	/* Get the EC device pointer needed to talk to the EC. */
-	ec_dev = dev_get_drvdata(dev->parent);
-	if (!ec_dev) {
-		/*
-		 * We continue even for older devices which don't have the
-		 * correct device hierarchy, namely, GOOG0003 is a child
-		 * of GOOG0004. If GOOG0003 is a child of GOOG0004 and we
-		 * can't get a pointer to the Chrome EC device, defer the
-		 * probe function.
-		 */
-		parent_fwnode = fwnode_get_parent(dev->fwnode);
-		if (parent_fwnode) {
-			parent_adev = to_acpi_device_node(parent_fwnode);
-			if (parent_adev &&
-			    acpi_dev_hid_match(parent_adev, CREC_DRV_NAME)) {
-				return -EPROBE_DEFER;
-			}
+	/*
+	 * Get the EC device pointer needed to talk to the EC. The parent's
+	 * driver data is only a struct cros_ec_device when GOOG0003 is a
+	 * child of GOOG0004. On older devices without that hierarchy the
+	 * parent may be bound to an unrelated driver (e.g. the ACPI EC
+	 * driver for PNP0C09), so don't touch its driver data and continue
+	 * without an EC pointer. If GOOG0003 is a child of GOOG0004 and we
+	 * can't get a pointer to the Chrome EC device yet, defer the probe.
+	 */
+	ec_dev = NULL;
+	parent_fwnode = fwnode_get_parent(dev->fwnode);
+	parent_adev = to_acpi_device_node(parent_fwnode);
+	if (parent_adev && acpi_dev_hid_match(parent_adev, CREC_DRV_NAME)) {
+		ec_dev = dev_get_drvdata(dev->parent);
+		if (!ec_dev) {
+			fwnode_handle_put(parent_fwnode);
+			return -EPROBE_DEFER;
 		}
-		dev_warn(dev, "Couldn't get Chrome EC device pointer.\n");
 	}
+	fwnode_handle_put(parent_fwnode);
+
+	if (!ec_dev)
+		dev_warn(dev, "Couldn't get Chrome EC device pointer.\n");
 
 	pdnotify->dev = dev;
 	pdnotify->ec = ec_dev;