[PATCH RESEND v3 2/2] dt-bindings: memory-controllers: mtk-smi: Add support for mt8189
Congcong Yao via B4 Relay <[email protected]>
| Newsgroups | org.infradead.lists.linux-mediatek,org.infradead.lists.linux-arm-kernel,org.kernel.feeds.b4-sent,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
From: Congcong Yao <[email protected]> Add smi larb, common and sub-commom binding description for mt8189. About what smi-sub-common is, please check the below diagram, we add it in mediatek,smi-common.yaml file. Signed-off-by: Congcong Yao <[email protected]> Reviewed-by: AngeloGioacchino Del Regno <[email protected]> --- .../memory-controllers/mediatek,smi-common.yaml | 18 ++++++++++++++++++ .../bindings/memory-controllers/mediatek,smi-larb.yaml | 3 +++ 2 files changed, 21 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml index 0762e0ff66ef..4e1deeff92b1 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml @@ -25,6 +25,21 @@ description: | SMI generation 1 to transform the smi clock into emi clock domain, but that is not needed for SMI generation 2. + The smi-common connects with smi-larb and IOMMU. The maximum inputs number of + a smi-common is 8. In SMI generation 2, the engines number may be over 8. + In this case, we use a smi-sub-common to merge some larbs. + The block diagram something is like: + + IOMMU + | | + smi-common + --------------------------- + | | ... + larb0 sub-common ... <-max number is 8 + ---------------- + | | ... + larb1 larbX ... <-max number is 8 + properties: compatible: oneOf: @@ -40,6 +55,8 @@ properties: - mediatek,mt8186-smi-common - mediatek,mt8188-smi-common-vdo - mediatek,mt8188-smi-common-vpp + - mediatek,mt8189-smi-common + - mediatek,mt8189-smi-sub-common - mediatek,mt8192-smi-common - mediatek,mt8195-smi-common-vdo - mediatek,mt8195-smi-common-vpp @@ -108,6 +125,7 @@ allOf: compatible: contains: enum: + - mediatek,mt8189-smi-sub-common - mediatek,mt8195-smi-sub-common then: required: diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml index 2e7fac4b5094..9a5dafd7c07e 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.yaml @@ -27,6 +27,7 @@ properties: - mediatek,mt8183-smi-larb - mediatek,mt8186-smi-larb - mediatek,mt8188-smi-larb + - mediatek,mt8189-smi-larb - mediatek,mt8192-smi-larb - mediatek,mt8195-smi-larb @@ -85,6 +86,7 @@ allOf: - mediatek,mt8183-smi-larb - mediatek,mt8186-smi-larb - mediatek,mt8188-smi-larb + - mediatek,mt8189-smi-larb - mediatek,mt8195-smi-larb then: @@ -119,6 +121,7 @@ allOf: - mediatek,mt6779-smi-larb - mediatek,mt8186-smi-larb - mediatek,mt8188-smi-larb + - mediatek,mt8189-smi-larb - mediatek,mt8192-smi-larb - mediatek,mt8195-smi-larb -- 2.43.0