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drm/arm/malidp: Stop using iommu_present()

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iommu_get_domain_for_dev() is already perfectly happy to return NULL
if the given device has no IOMMU. Drop the unnecessary check.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5049994e6c2ba92c2f30d51850c8929136d0f8ca.1649167878.git.robin.murphy@arm.com
This commit is contained in:
Robin Murphy 2022-04-05 15:11:18 +01:00 committed by Liviu Dudau
parent c8f76c37cc
commit b5c7d19736
1 changed files with 5 additions and 9 deletions
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14
drivers/gpu/drm/arm/malidp_planes.c
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@ -310,17 +310,13 @@ static int malidp_se_check_scaling(struct malidp_plane *mp,
static u32 malidp_get_pgsize_bitmap(struct malidp_plane *mp)
{
u32 pgsize_bitmap = 0;
struct iommu_domain *mmu_dom;
if (iommu_present(&platform_bus_type)) {
struct iommu_domain *mmu_dom =
iommu_get_domain_for_dev(mp->base.dev->dev);
mmu_dom = iommu_get_domain_for_dev(mp->base.dev->dev);
if (mmu_dom)
return mmu_dom->pgsize_bitmap;
if (mmu_dom)
pgsize_bitmap = mmu_dom->pgsize_bitmap;
}
return pgsize_bitmap;
return 0;
}
/*