# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id:
http://devicetree.org/schemas/pwm/clk-pwm.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Clock based PWM controller
maintainers:
- Nikita Travkin <nikita@trvn.ru>
description: |
Some systems have clocks that can be exposed to external devices.
(e.g. by muxing them to GPIO pins)
It's often possible to control duty-cycle of such clocks which makes them
suitable for generating PWM signal.
allOf:
- $ref: pwm.yaml#
properties:
compatible:
const: clk-pwm
clocks:
description: Clock used to generate the signal.
maxItems: 1
"#pwm-cells":
const: 2
unevaluatedProperties: false
required:
- compatible
- clocks
examples:
- |
pwm {
compatible = "clk-pwm";
#pwm-cells = <2>;
clocks = <&gcc 0>;
pinctrl-names = "default";
pinctrl-0 = <&pwm_clk_flash_default>;
};
