media: nvidia: tegra: Use iommu_paging_domain_alloc()

An iommu domain is allocated in tegra_vde_iommu_init() and is attached to
vde->dev. Use iommu_paging_domain_alloc() to make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240610085555.88197-9-baolu.lu@linux.intel.com
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

diff --git a/drivers/media/platform/nvidia/tegra-vde/iommu.c b/drivers/media/platform/nvidia/tegra-vde/iommu.c
index 5521ed3e465fba0ad59b2b9b28abb6008ff7e23b..b1d9d841d944097549245620d9a74b355f42fec4 100644 (file)
--- a/drivers/media/platform/nvidia/tegra-vde/iommu.c
+++ b/drivers/media/platform/nvidia/tegra-vde/iommu.c
@@ -78,9 +78,10 @@ int tegra_vde_iommu_init(struct tegra_vde *vde)
                arm_iommu_release_mapping(mapping);
        }
 #endif
-       vde->domain = iommu_domain_alloc(&platform_bus_type);
-       if (!vde->domain) {
-               err = -ENOMEM;
+       vde->domain = iommu_paging_domain_alloc(dev);
+       if (IS_ERR(vde->domain)) {
+               err = PTR_ERR(vde->domain);
+               vde->domain = NULL;
                goto put_group;
        }