xref: /linux/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.yaml (revision 67f49869106f78882a8a09b736d4884be85aba18) 
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          - renesas,pwm-r8a779g0  # R-Car V4H
39      - const: renesas,pwm-rcar
40
41  reg:
42    # base address and length of the registers block for the PWM.
43    maxItems: 1
44
45  '#pwm-cells':
46    # should be 2. See pwm.yaml in this directory for a description of
47    # the cells format.
48    const: 2
49
50  clocks:
51    # clock phandle and specifier pair.
52    maxItems: 1
53
54  power-domains:
55    maxItems: 1
56
57  resets:
58    maxItems: 1
59
60required:
61  - compatible
62  - reg
63  - clocks
64  - power-domains
65
66allOf:
67  - $ref: pwm.yaml#
68
69  - if:
70      not:
71        properties:
72          compatible:
73            contains:
74              enum:
75                - renesas,pwm-r8a7778
76                - renesas,pwm-r8a7779
77    then:
78      required:
79        - resets
80
81additionalProperties: false
82
83examples:
84  - |
85    #include <dt-bindings/clock/r8a7743-cpg-mssr.h>
86    #include <dt-bindings/power/r8a7743-sysc.h>
87
88    pwm0: pwm@e6e30000 {
89        compatible = "renesas,pwm-r8a7743", "renesas,pwm-rcar";
90        reg = <0xe6e30000 0x8>;
91        clocks = <&cpg CPG_MOD 523>;
92        power-domains = <&sysc R8A7743_PD_ALWAYS_ON>;
93        resets = <&cpg 523>;
94        #pwm-cells = <2>;
95        pinctrl-0 = <&pwm0_pins>;
96        pinctrl-names = "default";
97    };
98