1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/pwm/pwm-gpi 4 $id: http://devicetree.org/schemas/pwm/pwm-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Generic software PWM for modulating GPI 7 title: Generic software PWM for modulating GPIOs
8 8
9 maintainers: 9 maintainers:
10 - Stefan Wahren <wahrenst@gmx.net> 10 - Stefan Wahren <wahrenst@gmx.net>
11 11
12 allOf: 12 allOf:
13 - $ref: pwm.yaml# 13 - $ref: pwm.yaml#
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 const: pwm-gpio 17 const: pwm-gpio
18 18
19 "#pwm-cells": 19 "#pwm-cells":
20 const: 3 20 const: 3
21 description: 21 description:
22 See pwm.yaml in this directory for a des 22 See pwm.yaml in this directory for a description of the cells format.
23 The first cell which represents the PWM 23 The first cell which represents the PWM instance number must always
24 be zero. 24 be zero.
25 25
26 gpios: 26 gpios:
27 description: 27 description:
28 GPIO to be modulated 28 GPIO to be modulated
29 maxItems: 1 29 maxItems: 1
30 30
31 required: 31 required:
32 - compatible 32 - compatible
33 - "#pwm-cells" 33 - "#pwm-cells"
34 - gpios 34 - gpios
35 35
36 additionalProperties: false 36 additionalProperties: false
37 37
38 examples: 38 examples:
39 - | 39 - |
40 #include <dt-bindings/gpio/gpio.h> 40 #include <dt-bindings/gpio/gpio.h>
41 41
42 pwm { 42 pwm {
43 #pwm-cells = <3>; 43 #pwm-cells = <3>;
44 compatible = "pwm-gpio"; 44 compatible = "pwm-gpio";
45 gpios = <&gpio 1 GPIO_ACTIVE_HIGH>; 45 gpios = <&gpio 1 GPIO_ACTIVE_HIGH>;
46 }; 46 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.