Hi,

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The MSM IOMMU is an implementation compatible with the ARM VMSA

short

quoted

descriptor page tables. It provides address translation for bus
masters outside of the CPU, each connected to the IOMMU through a port

called micro-TLB.

quoted

Adding the DT bindings for the same.

Signed-off-by: Sricharan R <redacted>
---
 .../devicetree/bindings/iommu/msm,iommu-v0.txt     | 62

++++++++++++++++++++++

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 1 file changed, 62 insertions(+)
 create mode 100644
Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt

diff --git a/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt

b/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt
new file mode 100644
index 0000000..63b4f96

--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/msm,iommu-v0.txt

@@ -0,0 +1,62 @@
+* MSM IOMMU
+
+The MSM IOMMU is an implementation compatible with the ARM VMSA

short

quoted

+descriptor page tables. It provides address translation for bus
+masters outside of the CPU, each connected to the IOMMU through a

port called micro-TLB.

quoted

+
+Required Properties:
+
+  - compatible: Must contain "msm,iommu-v0".

SOC specific compatible strings please.

  Ok sure. I think I missed being explicit here last time.

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+  - reg: Base address and size of the IOMMU registers.
+  - interrupts: Specifiers for the MMU fault interrupts. For instances

that

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+    support secure mode two interrupts must be specified, for

non-secure

and

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+    secure mode, in that order. For instances that don't support secure

mode a

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+    single interrupt must be specified.
+  - #iommu-cells: The number of cells needed to specify the stream id.

This

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+		  is always 1.
+  - qcom,ncb:	  The total number of context banks in the IOMMU.
+  - clocks	: List of clocks to be used during SMMU register access. See
+		  Documentation/devicetree/bindings/clock/clock-

bindings.txt

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+		  for information about the format. For each clock specified
+		  here, there must be a corresponding entry in clock-names
+		  (see below).
+
+  - clock-names	: List of clock names corresponding to the clocks

specified in

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+		  the "clocks" property (above). See
+		  Documentation/devicetree/bindings/clock/clock-

bindings.txt

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+		  for more info.

You must define how many clocks, their order and their names.

 Ok, will update this and repost

Regards,
 Sricharan