xref: /freebsd/sys/contrib/device-tree/Bindings/pwm/renesas,tpu-pwm.yaml (revision b197d4b893974c9eb4d7b38704c6d5c486235d6f) 
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      - const: renesas,tpu
44
45  reg:
46    # Base address and length of each memory resource used by the PWM
47    # controller hardware module.
48    maxItems: 1
49
50  interrupts:
51    maxItems: 1
52
53  '#pwm-cells':
54    # should be 3. See pwm.yaml in this directory for a description of
55    # the cells format. The only third cell flag supported by this binding is
56    # PWM_POLARITY_INVERTED.
57    const: 3
58
59  clocks:
60    maxItems: 1
61
62  power-domains:
63    maxItems: 1
64
65  resets:
66    maxItems: 1
67
68required:
69  - compatible
70  - reg
71  - clocks
72  - power-domains
73
74allOf:
75  - $ref: pwm.yaml#
76
77  - if:
78      not:
79        properties:
80          compatible:
81            contains:
82              enum:
83                - renesas,tpu-r8a73a4
84                - renesas,tpu-r8a7740
85    then:
86      required:
87        - resets
88
89additionalProperties: false
90
91examples:
92  - |
93    #include <dt-bindings/clock/r8a7740-clock.h>
94
95    tpu: pwm@e6600000 {
96        compatible = "renesas,tpu-r8a7740", "renesas,tpu";
97        reg = <0xe6600000 0x148>;
98        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
99        power-domains = <&pd_a3sp>;
100        #pwm-cells = <3>;
101    };
102