301 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_v1_attach_device()  local
305 	mtk_mapping = data->mapping;  in mtk_iommu_v1_attach_device()
306 	if (mtk_mapping->domain != domain)  in mtk_iommu_v1_attach_device()
398 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_v1_create_mapping()  local
430 	mtk_mapping = data->mapping;  in mtk_iommu_v1_create_mapping()
431 	if (!mtk_mapping) {  in mtk_iommu_v1_create_mapping()
433 		mtk_mapping = arm_iommu_create_mapping(&platform_bus_type,  in mtk_iommu_v1_create_mapping()
435 		if (IS_ERR(mtk_mapping))  in mtk_iommu_v1_create_mapping()
436 			return PTR_ERR(mtk_mapping);  in mtk_iommu_v1_create_mapping()
438 		data->mapping = mtk_mapping;  in mtk_iommu_v1_create_mapping()
514 	struct dma_iommu_mapping *mtk_mapping;  in mtk_iommu_v1_probe_finalize()  local
519 	mtk_mapping = data->mapping;  in mtk_iommu_v1_probe_finalize()
521 	err = arm_iommu_attach_device(dev, mtk_mapping);  in mtk_iommu_v1_probe_finalize()