xref: /linux/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.yaml (revision 16018c0d27eda6a7f69dafa750d23770fb46b00f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pwm/pwm-tiehrpwm.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: TI SOC EHRPWM based PWM controller
8
9maintainers:
10  - Vignesh R <vigneshr@ti.com>
11
12allOf:
13  - $ref: pwm.yaml#
14
15properties:
16  compatible:
17    oneOf:
18      - const: ti,am3352-ehrpwm
19      - items:
20          - enum:
21              - ti,da850-ehrpwm
22              - ti,am4372-ehrpwm
23              - ti,dra746-ehrpwm
24              - ti,am654-ehrpwm
25              - ti,am64-epwm
26          - const: ti,am3352-ehrpwm
27
28  reg:
29    maxItems: 1
30
31  "#pwm-cells":
32    const: 3
33    description: |
34      See pwm.yaml in this directory for a description of the cells format.
35      The only third cell flag supported by this binding is PWM_POLARITY_INVERTED.
36
37  clock-names:
38    items:
39      - const: tbclk
40      - const: fck
41
42  clocks:
43    maxItems: 2
44
45  power-domains:
46    maxItems: 1
47
48required:
49  - compatible
50  - reg
51  - "#pwm-cells"
52  - clocks
53  - clock-names
54
55additionalProperties: false
56
57examples:
58  - |
59    ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */
60        compatible = "ti,am3352-ehrpwm";
61        #pwm-cells = <3>;
62        reg = <0x48300200 0x100>;
63        clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
64        clock-names = "tbclk", "fck";
65    };
66