xref: /linux/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml (revision 55d0969c451159cff86949b38c39171cab962069) 
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-r8a77961  # R-Car M3-W+
39          - renesas,tpu-r8a77965  # R-Car M3-N
40          - renesas,tpu-r8a77970  # R-Car V3M
41          - renesas,tpu-r8a77980  # R-Car V3H
42          - renesas,tpu-r8a779a0  # R-Car V3U
43          - renesas,tpu-r8a779g0  # R-Car V4H
44          - renesas,tpu-r8a779h0  # R-Car V4M
45      - const: renesas,tpu
46
47  reg:
48    # Base address and length of each memory resource used by the PWM
49    # controller hardware module.
50    maxItems: 1
51
52  interrupts:
53    maxItems: 1
54
55  '#pwm-cells':
56    # should be 3. See pwm.yaml in this directory for a description of
57    # the cells format. The only third cell flag supported by this binding is
58    # PWM_POLARITY_INVERTED.
59    const: 3
60
61  clocks:
62    maxItems: 1
63
64  power-domains:
65    maxItems: 1
66
67  resets:
68    maxItems: 1
69
70required:
71  - compatible
72  - reg
73  - clocks
74  - power-domains
75
76allOf:
77  - $ref: pwm.yaml#
78
79  - if:
80      not:
81        properties:
82          compatible:
83            contains:
84              enum:
85                - renesas,tpu-r8a73a4
86                - renesas,tpu-r8a7740
87    then:
88      required:
89        - resets
90
91additionalProperties: false
92
93examples:
94  - |
95    #include <dt-bindings/clock/r8a7740-clock.h>
96
97    tpu: pwm@e6600000 {
98        compatible = "renesas,tpu-r8a7740", "renesas,tpu";
99        reg = <0xe6600000 0x148>;
100        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
101        power-domains = <&pd_a3sp>;
102        #pwm-cells = <3>;
103    };
104