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diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-pwm.txt
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+++ b/Documentation/devicetree/bindings/pwm/imx-pwm.txt
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+Freescale i.MX PWM controller
+
+Required properties:
+- compatible: should be "fsl,<soc>-pwm"
+- reg: physical base address and length of the controller's registers
+- #pwm-cells: should be 2.  The first cell specifies the per-chip index
+  of the PWM to use and the second cell is the period in nanoseconds.
+- interrupts: The interrupt for the pwm controller
+
+Example:
+
+pwm1: pwm@53fb4000 {
+        #pwm-cells = <2>;
+        compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
+        reg = <0x53fb4000 0x4000>;
+        interrupts = <61>;
+};