iommu/of: Handle missing iommu_ops as probe deferral in of_iommu_xlate

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

Author: jannau

drivers/iommu/of_iommu.c

@@ -28,6 +28,8 @@ static int of_iommu_xlate(struct device *dev,
 	if ((ops && !ops->of_xlate) ||
 	    !of_device_is_available(iommu_spec->np))
 		return -ENODEV;
+	if (!ops)
+		return driver_deferred_probe_check_state(dev);
 
 	ret = iommu_fwspec_init(dev, fwnode, ops);
 	if (ret)