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diff --git a/dts/Bindings/pwm/atmel-tcb-pwm.txt b/dts/Bindings/pwm/atmel-tcb-pwm.txt
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+Atmel TCB PWM controller
+
+Required properties:
+- compatible: should be "atmel,tcb-pwm"
+- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
+ the cells format. The only third cell flag supported by this binding is
+ PWM_POLARITY_INVERTED.
+- tc-block: The Timer Counter block to use as a PWM chip.
+
+Example:
+
+pwm {
+ compatible = "atmel,tcb-pwm";
+ #pwm-cells = <3>;
+ tc-block = <1>;
+};