[PATCH v2 08/22] gpu: host1x: Use iommu_paging_domain_alloc()

Lu Baolu
2024-06-04T01:54:34Z

An iommu domain is allocated in host1x_iommu_attach() and is attached to
host->dev. Use iommu_paging_domain_alloc() to make it explicit.

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
---
drivers/gpu/host1x/dev.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c
index 3a0aaa68ac8d..f86a6b12f24a 100644
--- a/drivers/gpu/host1x/dev.c
+++ b/drivers/gpu/host1x/dev.c
@@ -404,9 +404,10 @@ static struct iommu_domain *host1x_iommu_attach(struct host1x *host)
if (err < 0)
goto put_group;

- host->domain = iommu_domain_alloc(&platform_bus_type);
- if (!host->domain) {
- err = -ENOMEM;
+ host->domain = iommu_paging_domain_alloc(host->dev);
+ if (IS_ERR(host->domain)) {
+ err = PTR_ERR(host->domain);
+ host->domain = NULL;
goto put_cache;
}

--
2.34.1