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| author | Chengci.Xu <chengci.xu@mediatek.com> | 2023-06-02 12:02:21 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-08-07 15:15:45 +0300 |
| commit | d5cda142d649c690fb0fcf1e29f3df63fbafc442 (patch) | |
| tree | 4e54ec0ed698f2145dedacf313cdb9a23f0b1ace /Documentation/devicetree/bindings/iommu | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
| download | linux-d5cda142d649c690fb0fcf1e29f3df63fbafc442.tar.xz | |
dt-bindings: mediatek: mt8188: Add binding for MM & INFRA IOMMU
Add descriptions for mt8188 IOMMU which also use ARM Short-Descriptor
translation table format.
In mt8188, there are two smi-common HW and IOMMU, one is for vdo(video
output), the other is for vpp(video processing pipe). They connects
with different smi-larbs, then some setting(larbid_remap) is different.
Differentiate them with the compatible string.
Something like this:
IOMMU(VDO) IOMMU(VPP)
| |
SMI_COMMON_VDO SMI_COMMON_VPP
--------------- ----------------
| | ... | | ...
larb0 larb2 ... larb1 larb3 ...
We also have an IOMMU that is for infra master like PCIe.
And infra master don't have the larb and ports.
Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230602090227.7264-2-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'Documentation/devicetree/bindings/iommu')
| -rw-r--r-- | Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml index 5b6395bc10e0..ea6b0f5f24de 100644 --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml @@ -78,6 +78,9 @@ properties: - mediatek,mt8173-m4u # generation two - mediatek,mt8183-m4u # generation two - mediatek,mt8186-iommu-mm # generation two + - mediatek,mt8188-iommu-vdo # generation two + - mediatek,mt8188-iommu-vpp # generation two + - mediatek,mt8188-iommu-infra # generation two - mediatek,mt8192-m4u # generation two - mediatek,mt8195-iommu-vdo # generation two - mediatek,mt8195-iommu-vpp # generation two @@ -123,6 +126,7 @@ properties: description: | This is the mtk_m4u_id according to the HW. Specifies the mtk_m4u_id as defined in + dt-binding/memory/mediatek,mt8188-memory-port.h for mt8188, dt-binding/memory/mt2701-larb-port.h for mt2701 and mt7623, dt-binding/memory/mt2712-larb-port.h for mt2712, dt-binding/memory/mt6779-larb-port.h for mt6779, @@ -155,6 +159,8 @@ allOf: - mediatek,mt6795-m4u - mediatek,mt8173-m4u - mediatek,mt8186-iommu-mm + - mediatek,mt8188-iommu-vdo + - mediatek,mt8188-iommu-vpp - mediatek,mt8192-m4u - mediatek,mt8195-iommu-vdo - mediatek,mt8195-iommu-vpp @@ -168,6 +174,8 @@ allOf: compatible: enum: - mediatek,mt8186-iommu-mm + - mediatek,mt8188-iommu-vdo + - mediatek,mt8188-iommu-vpp - mediatek,mt8192-m4u - mediatek,mt8195-iommu-vdo - mediatek,mt8195-iommu-vpp @@ -194,7 +202,9 @@ allOf: properties: compatible: contains: - const: mediatek,mt8195-iommu-infra + enum: + - mediatek,mt8188-iommu-infra + - mediatek,mt8195-iommu-infra then: required: |