xref: /linux/Documentation/devicetree/bindings/pwm/google,cros-ec-pwm.yaml (revision 164666fa66669d437bdcc8d5f1744a2aee73be41) 
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
7title: PWM controlled by ChromeOS EC
8
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 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
19properties:
20  compatible:
21    const: google,cros-ec-pwm
22  "#pwm-cells":
23    description: The cell specifies the PWM index.
24    const: 1
25
26required:
27  - compatible
28  - '#pwm-cells'
29
30additionalProperties: false
31
32examples:
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    };
48