drm/nouveau/tegra: Use iommu_paging_domain_alloc()

In nvkm_device_tegra_probe_iommu(), a paging domain is allocated for @dev
and attached to it on success. Use iommu_paging_domain_alloc() to make it
explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240902014700.66095-2-baolu.lu@linux.intel.com

diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
index d1c294f..78a83f9 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
@@ -120,8 +120,8 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
        mutex_init(&tdev->iommu.mutex);
 
        if (device_iommu_mapped(dev)) {
-               tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type);
-               if (!tdev->iommu.domain)
+               tdev->iommu.domain = iommu_paging_domain_alloc(dev);
+               if (IS_ERR(tdev->iommu.domain))
                        goto error;
 
                /*