diff options
| author | Robin Murphy <robin.murphy@arm.com> | 2022-04-05 15:11:18 +0100 |
|---|---|---|
| committer | Liviu Dudau <liviu.dudau@arm.com> | 2022-04-11 18:30:18 +0100 |
| commit | b5c7d19736a17115f0c3489a2ebfa5c5181902b9 (patch) | |
| tree | 0c48929ba45533598ae2cb0ac8b54ed569166129 | |
| parent | c8f76c37cc3668ee45e081e76a15f24a352ebbdd (diff) | |
drm/arm/malidp: Stop using iommu_present()
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
| -rw-r--r-- | drivers/gpu/drm/arm/malidp_planes.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 0562bdaac00c..81d9f5004025 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -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; } /* |