[PATCH v4 1/2] dt-bindings: memory-controllers: mtk-smi: Add support for mt8189

[Congcong Yao via B4 Relay <devnull+congcong.yao.mediatek.com@kernel.org>]

From: Zhengnan Chen <zhengnan.chen@mediatek.com>

Add the SMI LARB, common and sub-common binding descriptions for
MT8189.

MT8189 adds an SMI sub-common block. Document this topology in
mediatek,smi-common.yaml.

Signed-off-by: Zhengnan Chen <zhengnan.chen@mediatek.com>
Signed-off-by: Congcong Yao <congcong.yao@mediatek.com>
---
 .../memory-controllers/mediatek,smi-common.yaml     | 21 ++++++++++++++++++++-
 .../memory-controllers/mediatek,smi-larb.yaml       |  3 +++
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
index 0762e0ff66ef..33c989f7fc33 100644
--- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml
@@ -16,7 +16,7 @@ description: |
   MediaTek SMI have two generations of HW architecture, here is the list
   which generation the SoCs use:
   generation 1: mt2701 and mt7623.
-  generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8186, mt8188, mt8192 and mt8195.
+  generation 2: mt2712, mt6779, mt8167, mt8173, mt8183, mt8186, mt8188, mt8189, mt8192 and mt8195.
 
   There's slight differences between the two SMI, for generation 2, the
   register which control the iommu port is at each larb's register base. But
@@ -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:
@@ -157,6 +175,7 @@ allOf:
             - mediatek,mt6795-smi-common
             - mediatek,mt8167-smi-common
             - mediatek,mt8173-smi-common
+            - mediatek,mt8189-smi-common
 
     then:
       properties:
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