268 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_attach_device()  local
272 	mtk_mapping = data->mapping;  in mtk_iommu_attach_device()
273 	if (mtk_mapping->domain != domain)  in mtk_iommu_attach_device()
371 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_create_mapping()  local
403 	mtk_mapping = data->mapping;  in mtk_iommu_create_mapping()
404 	if (!mtk_mapping) {  in mtk_iommu_create_mapping()
406 		mtk_mapping = arm_iommu_create_mapping(&platform_bus_type,  in mtk_iommu_create_mapping()
408 		if (IS_ERR(mtk_mapping))  in mtk_iommu_create_mapping()
409 			return PTR_ERR(mtk_mapping);  in mtk_iommu_create_mapping()
411 		data->mapping = mtk_mapping;  in mtk_iommu_create_mapping()
455 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_probe_finalize()  local
460 	mtk_mapping = data->mapping;  in mtk_iommu_probe_finalize()
462 	err = arm_iommu_attach_device(dev, mtk_mapping);  in mtk_iommu_probe_finalize()