xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/pwm/imx-tpm-pwm.yaml (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2*4882a593Smuzhiyun%YAML 1.2
3*4882a593Smuzhiyun---
4*4882a593Smuzhiyun$id: http://devicetree.org/schemas/pwm/imx-tpm-pwm.yaml#
5*4882a593Smuzhiyun$schema: http://devicetree.org/meta-schemas/core.yaml#
6*4882a593Smuzhiyun
7*4882a593Smuzhiyuntitle: Freescale i.MX TPM PWM controller
8*4882a593Smuzhiyun
9*4882a593Smuzhiyunmaintainers:
10*4882a593Smuzhiyun  - Anson Huang <anson.huang@nxp.com>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyundescription: |
13*4882a593Smuzhiyun  The TPM counter and period counter are shared between multiple
14*4882a593Smuzhiyun  channels, so all channels should use same period setting.
15*4882a593Smuzhiyun
16*4882a593Smuzhiyunproperties:
17*4882a593Smuzhiyun  "#pwm-cells":
18*4882a593Smuzhiyun    const: 3
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun  compatible:
21*4882a593Smuzhiyun    enum:
22*4882a593Smuzhiyun      - fsl,imx7ulp-pwm
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun  reg:
25*4882a593Smuzhiyun    maxItems: 1
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun  assigned-clocks:
28*4882a593Smuzhiyun    maxItems: 1
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun  assigned-clock-parents:
31*4882a593Smuzhiyun    maxItems: 1
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun  clocks:
34*4882a593Smuzhiyun    maxItems: 1
35*4882a593Smuzhiyun
36*4882a593Smuzhiyunrequired:
37*4882a593Smuzhiyun  - "#pwm-cells"
38*4882a593Smuzhiyun  - compatible
39*4882a593Smuzhiyun  - reg
40*4882a593Smuzhiyun  - clocks
41*4882a593Smuzhiyun
42*4882a593SmuzhiyunadditionalProperties: false
43*4882a593Smuzhiyun
44*4882a593Smuzhiyunexamples:
45*4882a593Smuzhiyun  - |
46*4882a593Smuzhiyun    #include <dt-bindings/clock/imx7ulp-clock.h>
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun    pwm@40250000 {
49*4882a593Smuzhiyun        compatible = "fsl,imx7ulp-pwm";
50*4882a593Smuzhiyun        reg = <0x40250000 0x1000>;
51*4882a593Smuzhiyun        assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
52*4882a593Smuzhiyun        assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
53*4882a593Smuzhiyun        clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
54*4882a593Smuzhiyun        #pwm-cells = <3>;
55*4882a593Smuzhiyun    };
56