Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/pwm/google,cros-ec-pwm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: PWM controlled by ChromeOS EC
   8
   9 maintainers:
  10   - Thierry Reding <thierry.reding@gmail.com>
  11   - '"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>'
  12
  13 description: |
  14   Google's ChromeOS EC PWM is a simple PWM attached to the Embedded Controller
  15   (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 (see
  17   Documentation/devicetree/bindings/mfd/google,cros-ec.yaml).
  18
  19 properties:
  20   compatible:
  21     const: google,cros-ec-pwm
  22   "#pwm-cells":
  23     description: The cell specifies the PWM index.
  24     const: 1
  25
  26 required:
  27   - compatible
  28   - '#pwm-cells'
  29
  30 additionalProperties: false
  31
  32 examples:
  33   - |
  34     spi {
  35         #address-cells = <1>;
  36         #size-cells = <0>;
  37
  38         cros-ec@0 {
  39             compatible = "google,cros-ec-spi";
  40             reg = <0>;
  41
  42             cros_ec_pwm: ec-pwm {
  43                 compatible = "google,cros-ec-pwm";
  44                 #pwm-cells = <1>;
  45             };
  46         };
  47     };