xref: /linux/Documentation/devicetree/bindings/pwm/renesas,tpu-pwm.yaml (revision 037ada7a3181300218e4fd78bef6a741cfa7f808) 
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
12properties:
13  compatible:
14    items:
15      - enum:
16          - renesas,tpu-r8a73a4   # R-Mobile APE6
17          - renesas,tpu-r8a7740   # R-Mobile A1
18          - renesas,tpu-r8a7742   # RZ/G1H
19          - renesas,tpu-r8a7743   # RZ/G1M
20          - renesas,tpu-r8a7744   # RZ/G1N
21          - renesas,tpu-r8a7745   # RZ/G1E
22          - renesas,tpu-r8a7790   # R-Car H2
23          - renesas,tpu-r8a7791   # R-Car M2-W
24          - renesas,tpu-r8a7792   # R-Car V2H
25          - renesas,tpu-r8a7793   # R-Car M2-N
26          - renesas,tpu-r8a7794   # R-Car E2
27          - renesas,tpu-r8a7795   # R-Car H3
28          - renesas,tpu-r8a7796   # R-Car M3-W
29          - renesas,tpu-r8a77961  # R-Car M3-W+
30          - renesas,tpu-r8a77965  # R-Car M3-N
31          - renesas,tpu-r8a77970  # R-Car V3M
32          - renesas,tpu-r8a77980  # R-Car V3H
33          - renesas,tpu-r8a779a0  # R-Car V3U
34          - renesas,tpu-r8a779g0  # R-Car V4H
35          - renesas,tpu-r8a779h0  # R-Car V4M
36      - const: renesas,tpu
37
38  reg:
39    # Base address and length of each memory resource used by the PWM
40    # controller hardware module.
41    maxItems: 1
42
43  interrupts:
44    maxItems: 1
45
46  '#pwm-cells':
47    # should be 3. See pwm.yaml in this directory for a description of
48    # the cells format. The only third cell flag supported by this binding is
49    # PWM_POLARITY_INVERTED.
50    const: 3
51
52  clocks:
53    maxItems: 1
54
55  power-domains:
56    maxItems: 1
57
58  resets:
59    maxItems: 1
60
61required:
62  - compatible
63  - reg
64  - clocks
65  - power-domains
66
67allOf:
68  - $ref: pwm.yaml#
69
70  - if:
71      not:
72        properties:
73          compatible:
74            contains:
75              enum:
76                - renesas,tpu-r8a73a4
77                - renesas,tpu-r8a7740
78    then:
79      required:
80        - resets
81
82additionalProperties: false
83
84examples:
85  - |
86    #include <dt-bindings/clock/r8a7740-clock.h>
87
88    tpu: pwm@e6600000 {
89        compatible = "renesas,tpu-r8a7740", "renesas,tpu";
90        reg = <0xe6600000 0x148>;
91        clocks = <&mstp3_clks R8A7740_CLK_TPU0>;
92        power-domains = <&pd_a3sp>;
93        #pwm-cells = <3>;
94    };
95