1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/clock/pwm-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: An external clock signal driven by a PWM pin.
8
9 maintainers:
10 - Philipp Zabel <p.zabel@pengutronix.de>
11
12 properties:
13 compatible:
14 const: pwm-clock
15
16 '#clock-cells':
17 const: 0
18
19 clock-frequency:
20 description: Exact output frequency, in case the PWM period is not exact
21 but was rounded to nanoseconds.
22
23 clock-output-names:
24 maxItems: 1
25
26 pwms:
27 maxItems: 1
28
29 required:
30 - compatible
31 - '#clock-cells'
32 - pwms
33
34 additionalProperties: false
35
36 examples:
37 - |
38 clock {
39 compatible = "pwm-clock";
40 #clock-cells = <0>;
41 clock-frequency = <25000000>;
42 clock-output-names = "mipi_mclk";
43 pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */
44 };
45 ...
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