1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright (C) 2022 SiFive, Inc.
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/pwm/snps,dw-apb-timers-pwm2.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: Synopsys DW-APB timers PWM controller
9
10 maintainers:
11 - Ben Dooks <ben.dooks@sifive.com>
12
13 description:
14 This describes the DesignWare APB timers module when used in the PWM
15 mode. The IP core can be generated with various options which can
16 control the functionality, the number of PWMs available and other
17 internal controls the designer requires.
18
19 The IP block has a version register so this can be used for detection
20 instead of having to encode the IP version number in the device tree
21 compatible.
22
23 allOf:
24 - $ref: pwm.yaml#
25
26 properties:
27 compatible:
28 const: snps,dw-apb-timers-pwm2
29
30 reg:
31 maxItems: 1
32
33 "#pwm-cells":
34 const: 3
35
36 clocks:
37 items:
38 - description: Interface bus clock
39 - description: PWM reference clock
40
41 clock-names:
42 items:
43 - const: bus
44 - const: timer
45
46 snps,pwm-number:
47 $ref: /schemas/types.yaml#/definitions/uint32
48 description: The number of PWM channels configured for this instance
49 enum: [1, 2, 3, 4, 5, 6, 7, 8]
50
51 required:
52 - compatible
53 - reg
54 - clocks
55 - clock-names
56
57 additionalProperties: false
58
59 examples:
60 - |
61 pwm: pwm@180000 {
62 compatible = "snps,dw-apb-timers-pwm2";
63 reg = <0x180000 0x200>;
64 #pwm-cells = <3>;
65 clocks = <&bus>, <&timer>;
66 clock-names = "bus", "timer";
67 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.