# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/input/pwm-vibrator.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: PWM vibrator maintainers: - Sebastian Reichel description: > Registers a PWM device as vibrator. It is expected, that the vibrator's strength increases based on the duty cycle of the enable PWM channel (100% duty cycle meaning strongest vibration, 0% meaning no vibration). The binding supports an optional direction PWM channel, that can be driven at fixed duty cycle. If available this is can be used to increase the vibration effect of some devices. properties: compatible: const: pwm-vibrator pwm-names: items: - const: enable - const: direction minItems: 1 pwms: minItems: 1 maxItems: 2 enable-gpios: true vcc-supply: true direction-duty-cycle-ns: description: > Duty cycle of the direction PWM channel in nanoseconds, defaults to 50% of the channel's period. required: - compatible - pwm-names - pwms additionalProperties: false examples: - | vibrator { compatible = "pwm-vibrator"; pwms = <&pwm9 0 1000000000 0>, <&pwm8 0 1000000000 0>; pwm-names = "enable", "direction"; direction-duty-cycle-ns = <1000000000>; };