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diff --git a/Documentation/powerpc/dts-bindings/fsl/spi.txt b/Documentation/powerpc/dts-bindings/fsl/spi.txt
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+* SPI (Serial Peripheral Interface)
+
+Required properties:
+- cell-index : SPI controller index.
+- compatible : should be "fsl,spi".
+- mode : the SPI operation mode, it can be "cpu" or "cpu-qe".
+- reg : Offset and length of the register set for the device
+- interrupts : <a b> where a is the interrupt number and b is a
+  field that represents an encoding of the sense and level
+  information for the interrupt.  This should be encoded based on
+  the information in section 2) depending on the type of interrupt
+  controller you have.
+- interrupt-parent : the phandle for the interrupt controller that
+  services interrupts for this device.
+
+Example:
+        spi@4c0 {
+                cell-index = <0>;
+                compatible = "fsl,spi";
+                reg = <4c0 40>;
+                interrupts = <82 0>;
+                interrupt-parent = <700>;
+                mode = "cpu";
+        };