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| author | Steven Price <steven.price@arm.com> | 2023-03-31 12:51:54 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-04-13 12:50:45 +0300 |
| commit | 25c2325575cc7f960c9f81f2b77606478f6b911f (patch) | |
| tree | 855b1e0b41e18601d585a1a77d706a49fb47dba4 /Documentation/devicetree/bindings/iommu | |
| parent | e8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff) | |
| download | linux-25c2325575cc7f960c9f81f2b77606478f6b911f.tar.xz | |
iommu/rockchip: Add missing set_platform_dma_ops callback
Similar to exynos, we need a set_platform_dma_ops() callback for proper
operation on ARM 32 bit after recent changes in the IOMMU framework
(detach ops removal). But also the use of a NULL domain is confusing.
Rework the code to add support for IOMMU_DOMAIN_IDENTITY and a singleton
rk_identity_domain which is assigned to domain when using an identity
mapping rather than "detaching". This makes the code easier to reason about.
Signed-off-by: Steven Price <steven.price@arm.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20230331095154.2671129-1-steven.price@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
0 files changed, 0 insertions, 0 deletions