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-tpm-pwm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Freescale i.MX TPM PWM controller
8
9 maintainers:
10 - Shawn Guo <shawnguo@kernel.org>
11 - Sascha Hauer <s.hauer@pengutronix.de>
12 - Fabio Estevam <festevam@gmail.com>
13
14 description: |
15 The TPM counter and period counter are shared between multiple
16 channels, so all channels should use same period setting.
17
18 allOf:
19 - $ref: pwm.yaml#
20
21 properties:
22 "#pwm-cells":
23 const: 3
24
25 compatible:
26 enum:
27 - fsl,imx7ulp-pwm
28
29 reg:
30 maxItems: 1
31
32 assigned-clocks:
33 maxItems: 1
34
35 assigned-clock-parents:
36 maxItems: 1
37
38 clocks:
39 maxItems: 1
40
41 required:
42 - compatible
43 - reg
44 - clocks
45
46 additionalProperties: false
47
48 examples:
49 - |
50 #include <dt-bindings/clock/imx7ulp-clock.h>
51
52 pwm@40250000 {
53 compatible = "fsl,imx7ulp-pwm";
54 reg = <0x40250000 0x1000>;
55 assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
56 assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;
57 clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;
58 #pwm-cells = <3>;
59 };
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