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diff --git a/Documentation/devicetree/bindings/pwm/pwm.yaml b/Documentation/devicetree/bindings/pwm/pwm.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PWM controllers (providers)
+
+maintainers:
+ - Thierry Reding <thierry.reding@gmail.com>
+
+select: false
+
+properties:
+ $nodename:
+ pattern: "^pwm(@.*|-[0-9a-f])*$"
+
+ "#pwm-cells":
+ description:
+ Number of cells in a PWM specifier.
+
+required:
+ - "#pwm-cells"
+
+additionalProperties: true
+
+examples:
+ - |
+ pwm: pwm@1c20e00 {
+ compatible = "allwinner,sun7i-a20-pwm";
+ reg = <0x01c20e00 0xc>;
+ clocks = <&osc24M>;
+ #pwm-cells = <3>;
+ };