Thread (48 messages) 48 messages, 7 authors, 2020-11-27
STALE2050d REVIEWED: 7 (7M)
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[PATCH v4 03/24] dt-bindings: memory: mediatek: Extend LARB_NR_MAX to 32

From: Yong Wu <yong.wu@mediatek.com>
Date: 2020-11-11 12:39:25
Also in: linux-arm-kernel, linux-iommu, linux-mediatek, lkml
Subsystem: iommu subsystem, mediatek iommu driver, memory controller drivers, open firmware and flattened device tree bindings, the rest · Maintainers: Joerg Roedel, Will Deacon, Yong Wu, Krzysztof Kozlowski, Rob Herring, Conor Dooley, Linus Torvalds

Extend the max larb number definition as mt8192 has larb_nr over 16.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml | 2 +-
 include/dt-bindings/memory/mtk-smi-larb-port.h              | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
index b9946809fc2b..ba6626347381 100644
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -99,7 +99,7 @@ properties:
   mediatek,larbs:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     minItems: 1
-    maxItems: 16
+    maxItems: 32
     description: |
       List of phandle to the local arbiters in the current Socs.
       Refer to bindings/memory-controllers/mediatek,smi-larb.yaml. It must sort
diff --git a/include/dt-bindings/memory/mtk-smi-larb-port.h b/include/dt-bindings/memory/mtk-smi-larb-port.h
index 2ec7fe5ce4e9..f4d8e3aed0bc 100644
--- a/include/dt-bindings/memory/mtk-smi-larb-port.h
+++ b/include/dt-bindings/memory/mtk-smi-larb-port.h
@@ -6,10 +6,10 @@
 #ifndef __DTS_MTK_IOMMU_PORT_H_
 #define __DTS_MTK_IOMMU_PORT_H_
 
-#define MTK_LARB_NR_MAX			16
+#define MTK_LARB_NR_MAX			32
 
 #define MTK_M4U_ID(larb, port)		(((larb) << 5) | (port))
-#define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0xf)
+#define MTK_M4U_TO_LARB(id)		(((id) >> 5) & 0x1f)
 #define MTK_M4U_TO_PORT(id)		((id) & 0x1f)
 
 #endif
-- 
2.18.0
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