58 lines · yaml
1# SPDX-License-Identifier: GPL-2.02%YAML 1.23---4$id: http://devicetree.org/schemas/pwm/google,cros-ec-pwm.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: PWM controlled by ChromeOS EC8 9maintainers:10 - Thierry Reding <thierry.reding@gmail.com>11 - '"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>'12 13description: |14 Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller15 (EC) and controlled via a host-command interface.16 An EC PWM node should be only found as a sub-node of the EC node (see17 Documentation/devicetree/bindings/mfd/google,cros-ec.yaml).18 19allOf:20 - $ref: pwm.yaml#21 22properties:23 compatible:24 oneOf:25 - description: PWM controlled using EC_PWM_TYPE_GENERIC channels.26 items:27 - const: google,cros-ec-pwm28 - description: PWM controlled using CROS_EC_PWM_DT_<...> types.29 items:30 - const: google,cros-ec-pwm-type31 32 "#pwm-cells":33 description: The cell specifies the PWM index.34 const: 135 36required:37 - compatible38 39additionalProperties: false40 41examples:42 - |43 spi {44 #address-cells = <1>;45 #size-cells = <0>;46 47 cros-ec@0 {48 compatible = "google,cros-ec-spi";49 reg = <0>;50 interrupts = <101 0>;51 52 cros_ec_pwm: pwm {53 compatible = "google,cros-ec-pwm";54 #pwm-cells = <1>;55 };56 };57 };58