80 		ret = arm_iommu_attach_device(subdrv_dev, priv->mapping);  in drm_iommu_attach_device()
82 		ret = iommu_attach_device(priv->mapping, subdrv_dev);  in drm_iommu_attach_device()
108 		iommu_detach_device(priv->mapping, subdrv_dev);  in drm_iommu_detach_device()
126 	if (!priv->mapping) {  in exynos_drm_register_dma()
127 		void *mapping;  in exynos_drm_register_dma()  local
130 			mapping = arm_iommu_create_mapping(&platform_bus_type,  in exynos_drm_register_dma()
133 			mapping = iommu_get_domain_for_dev(priv->dma_dev);  in exynos_drm_register_dma()
135 		if (IS_ERR(mapping))  in exynos_drm_register_dma()
136 			return PTR_ERR(mapping);  in exynos_drm_register_dma()
137 		priv->mapping = mapping;  in exynos_drm_register_dma()
156 	arm_iommu_release_mapping(priv->mapping);  in exynos_drm_cleanup_dma()
157 	priv->mapping = NULL;  in exynos_drm_cleanup_dma()