ark1668ed-bsp/linux/Documentation/devicetree/bindings/input/pwm-beeper.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/pwm-beeper.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: PWM beeper

maintainers:
  - Sascha Hauer <s.hauer@pengutronix.de>

properties:
  compatible:
    const: pwm-beeper

  pwms:
    maxItems: 1

  amp-supply:
    description: an amplifier for the beeper

  beeper-hz:
    description: bell frequency in Hz
    minimum: 10
    maximum: 10000

required:
  - compatible
  - pwms

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    beeper {
        compatible = "pwm-beeper";
        pwms = <&pwm0>;
        amp-supply = <&beeper_amp>;
        beeper-hz = <1000>;
    };