[RFC PATCH V2 0/2] Add Unisoc iommu basic driver

[Chunyan Zhang]

From: Chunyan Zhang <chunyan.zhang@xxxxxxxxxx>

Changes since RFC v1:
* Rebased on v5.11-rc1;
* Changed sprd-iommu to tristate;
* Removed check for args_count of iommu OF node, since there's no args
  for sprd-iommu device node;
* Added another IP version (i.e. vau);
* Removed unnecessary configs selection from CONFIG_SPRD_IOMMU;
* Changed to get zeroed pages.

Chunyan Zhang (2):
  dt-bindings: iommu: add bindings for sprd iommu
  iommu: add Unisoc iommu basic driver

 .../devicetree/bindings/iommu/sprd,iommu.yaml |  44 ++
 drivers/iommu/Kconfig                         |  12 +
 drivers/iommu/Makefile                        |   1 +
 drivers/iommu/sprd-iommu.c                    | 546 ++++++++++++++++++
 4 files changed, 603 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iommu/sprd,iommu.yaml
 create mode 100644 drivers/iommu/sprd-iommu.c

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2.25.1