xref: /linux/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.yaml (revision dec1c62e91ba268ab2a6e339d4d7a59287d5eba1) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pwm/renesas,pwm-rcar.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas R-Car PWM Timer Controller
8
9maintainers:
10  - Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
11
12properties:
13  compatible:
14    items:
15      - enum:
16          - renesas,pwm-r8a7742   # RZ/G1H
17          - renesas,pwm-r8a7743   # RZ/G1M
18          - renesas,pwm-r8a7744   # RZ/G1N
19          - renesas,pwm-r8a7745   # RZ/G1E
20          - renesas,pwm-r8a77470  # RZ/G1C
21          - renesas,pwm-r8a774a1  # RZ/G2M
22          - renesas,pwm-r8a774b1  # RZ/G2N
23          - renesas,pwm-r8a774c0  # RZ/G2E
24          - renesas,pwm-r8a774e1  # RZ/G2H
25          - renesas,pwm-r8a7778   # R-Car M1A
26          - renesas,pwm-r8a7779   # R-Car H1
27          - renesas,pwm-r8a7790   # R-Car H2
28          - renesas,pwm-r8a7791   # R-Car M2-W
29          - renesas,pwm-r8a7794   # R-Car E2
30          - renesas,pwm-r8a7795   # R-Car H3
31          - renesas,pwm-r8a7796   # R-Car M3-W
32          - renesas,pwm-r8a77961  # R-Car M3-W+
33          - renesas,pwm-r8a77965  # R-Car M3-N
34          - renesas,pwm-r8a77970  # R-Car V3M
35          - renesas,pwm-r8a77980  # R-Car V3H
36          - renesas,pwm-r8a77990  # R-Car E3
37          - renesas,pwm-r8a77995  # R-Car D3
38      - const: renesas,pwm-rcar
39
40  reg:
41    # base address and length of the registers block for the PWM.
42    maxItems: 1
43
44  '#pwm-cells':
45    # should be 2. See pwm.yaml in this directory for a description of
46    # the cells format.
47    const: 2
48
49  clocks:
50    # clock phandle and specifier pair.
51    maxItems: 1
52
53  power-domains:
54    maxItems: 1
55
56  resets:
57    maxItems: 1
58
59required:
60  - compatible
61  - reg
62  - clocks
63  - power-domains
64
65allOf:
66  - $ref: pwm.yaml#
67
68  - if:
69      not:
70        properties:
71          compatible:
72            contains:
73              enum:
74                - renesas,pwm-r8a7778
75                - renesas,pwm-r8a7779
76    then:
77      required:
78        - resets
79
80additionalProperties: false
81
82examples:
83  - |
84    #include <dt-bindings/clock/r8a7743-cpg-mssr.h>
85    #include <dt-bindings/power/r8a7743-sysc.h>
86
87    pwm0: pwm@e6e30000 {
88        compatible = "renesas,pwm-r8a7743", "renesas,pwm-rcar";
89        reg = <0xe6e30000 0x8>;
90        clocks = <&cpg CPG_MOD 523>;
91        power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
92        resets = <&cpg 523>;
93        #pwm-cells = <2>;
94        pinctrl-0 = <&pwm0_pins>;
95        pinctrl-names = "default";
96    };
97