xref: /linux/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml (revision 6beeaf48db6c548fcfc2ad32739d33af2fef3a5b) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pwm/renesas,tpu-pwm.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas R-Car Timer Pulse Unit PWM Controller
8
9maintainers:
10  - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
11
12select:
13  properties:
14    compatible:
15      contains:
16        const: renesas,tpu
17  required:
18    - compatible
19    - '#pwm-cells'
20
21properties:
22  compatible:
23    items:
24      - enum:
25          - renesas,tpu-r8a73a4   # R-Mobile APE6
26          - renesas,tpu-r8a7740   # R-Mobile A1
27          - renesas,tpu-r8a7742   # RZ/G1H
28          - renesas,tpu-r8a7743   # RZ/G1M
29          - renesas,tpu-r8a7744   # RZ/G1N
30          - renesas,tpu-r8a7745   # RZ/G1E
31          - renesas,tpu-r8a7790   # R-Car H2
32          - renesas,tpu-r8a7791   # R-Car M2-W
33          - renesas,tpu-r8a7792   # R-Car V2H
34          - renesas,tpu-r8a7793   # R-Car M2-N
35          - renesas,tpu-r8a7794   # R-Car E2
36          - renesas,tpu-r8a7795   # R-Car H3
37          - renesas,tpu-r8a7796   # R-Car M3-W
38          - renesas,tpu-r8a77965  # R-Car M3-N
39          - renesas,tpu-r8a77970  # R-Car V3M
40          - renesas,tpu-r8a77980  # R-Car V3H
41      - const: renesas,tpu
42
43  reg:
44    # Base address and length of each memory resource used by the PWM
45    # controller hardware module.
46    maxItems: 1
47
48  interrupts:
49    maxItems: 1
50
51  '#pwm-cells':
52    # should be 3. See pwm.yaml in this directory for a description of
53    # the cells format. The only third cell flag supported by this binding is
54    # PWM_POLARITY_INVERTED.
55    const: 3
56
57  clocks:
58    maxItems: 1
59
60  power-domains:
61    maxItems: 1
62
63  resets:
64    maxItems: 1
65
66required:
67  - compatible
68  - reg
69  - '#pwm-cells'
70  - clocks
71  - power-domains
72
73allOf:
74  - $ref: pwm.yaml#
75
76  - if:
77      not:
78        properties:
79          compatible:
80            contains:
81              enum:
82                - renesas,tpu-r8a73a4
83                - renesas,tpu-r8a7740
84    then:
85      required:
86        - resets
87
88additionalProperties: false
89
90examples:
91  - |
92    #include <dt-bindings/clock/r8a7740-clock.h>
93
94    tpu: pwm@e6600000 {
95        compatible = "renesas,tpu-r8a7740", "renesas,tpu";
96        reg = <0xe6600000 0x148>;
97        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
98        power-domains = <&pd_a3sp>;
99        #pwm-cells = <3>;
100    };
101