1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/input/pwm-beeper.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: PWM beeper
8
9 maintainers:
10 - Sascha Hauer <s.hauer@pengutronix.de>
11
12 properties:
13 compatible:
14 const: pwm-beeper
15
16 pwms:
17 maxItems: 1
18
19 amp-supply:
20 description: an amplifier for the beeper
21
22 beeper-hz:
23 description: bell frequency in Hz
24 minimum: 10
25 maximum: 10000
26
27 required:
28 - compatible
29 - pwms
30
31 unevaluatedProperties: false
32
33 examples:
34 - |
35 #include <dt-bindings/gpio/gpio.h>
36 beeper {
37 compatible = "pwm-beeper";
38 pwms = <&pwm0>;
39 amp-supply = <&beeper_amp>;
40 beeper-hz = <1000>;
41 };
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