xref: /linux/Documentation/devicetree/bindings/pwm/imx-pwm.yaml (revision 9dbbc3b9d09d6deba9f3b9e1d5b355032ed46a75) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pwm/imx-pwm.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX PWM controller
8
9maintainers:
10  - Philipp Zabel <p.zabel@pengutronix.de>
11
12properties:
13  "#pwm-cells":
14    description: |
15      Should be 2 for i.MX1 and 3 for i.MX27 and newer SoCs. See pwm.yaml
16      in this directory for a description of the cells format.
17    enum:
18      - 2
19      - 3
20
21  compatible:
22    oneOf:
23      - enum:
24          - fsl,imx1-pwm
25          - fsl,imx27-pwm
26      - items:
27          - enum:
28              - fsl,imx25-pwm
29              - fsl,imx31-pwm
30              - fsl,imx50-pwm
31              - fsl,imx51-pwm
32              - fsl,imx53-pwm
33              - fsl,imx6q-pwm
34              - fsl,imx6sl-pwm
35              - fsl,imx6sll-pwm
36              - fsl,imx6sx-pwm
37              - fsl,imx6ul-pwm
38              - fsl,imx7d-pwm
39              - fsl,imx8mm-pwm
40              - fsl,imx8mn-pwm
41              - fsl,imx8mp-pwm
42              - fsl,imx8mq-pwm
43          - const: fsl,imx27-pwm
44
45  reg:
46    maxItems: 1
47
48  clocks:
49    items:
50      - description: SoC PWM ipg clock
51      - description: SoC PWM per clock
52
53  clock-names:
54    items:
55      - const: ipg
56      - const: per
57
58  interrupts:
59    maxItems: 1
60
61required:
62  - "#pwm-cells"
63  - compatible
64  - reg
65  - clocks
66  - clock-names
67  - interrupts
68
69additionalProperties: false
70
71examples:
72  - |
73    #include <dt-bindings/clock/imx5-clock.h>
74
75    pwm@53fb4000 {
76        #pwm-cells = <3>;
77        compatible = "fsl,imx27-pwm";
78        reg = <0x53fb4000 0x4000>;
79        clocks = <&clks IMX5_CLK_PWM1_IPG_GATE>,
80                 <&clks IMX5_CLK_PWM1_HF_GATE>;
81        clock-names = "ipg", "per";
82        interrupts = <61>;
83    };
84