The OMAP IOMMU bindings is updated to reflect the required #iommu-cells
property.

Signed-off-by: Suman Anna <s-a...@ti.com>
---
 Documentation/devicetree/bindings/iommu/ti,omap-iommu.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/iommu/ti,omap-iommu.txt 
b/Documentation/devicetree/bindings/iommu/ti,omap-iommu.txt
index 42531dc387aa..869699925fd5 100644
--- a/Documentation/devicetree/bindings/iommu/ti,omap-iommu.txt
+++ b/Documentation/devicetree/bindings/iommu/ti,omap-iommu.txt
@@ -8,6 +8,11 @@ Required properties:
 - ti,hwmods  : Name of the hwmod associated with the IOMMU instance
 - reg        : Address space for the configuration registers
 - interrupts : Interrupt specifier for the IOMMU instance
+- #iommu-cells : Should be 0. OMAP IOMMUs are all "single-master" devices,
+                 and needs no additional data in the pargs specifier. Please
+                 also refer to the generic bindings document for more info
+                 on this property,
+                     Documentation/devicetree/bindings/iommu/iommu.txt
 
 Optional properties:
 - ti,#tlb-entries : Number of entries in the translation look-aside buffer.
@@ -18,6 +23,7 @@ Optional properties:
 Example:
        /* OMAP3 ISP MMU */
        mmu_isp: mmu@480bd400 {
+               #iommu-cells = <0>;
                compatible = "ti,omap2-iommu";
                reg = <0x480bd400 0x80>;
                interrupts = <24>;
-- 
2.4.4

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