xref: /freebsd/sys/contrib/device-tree/Bindings/timer/renesas,ostm.yaml (revision 2e3507c25e42292b45a5482e116d278f5515d04d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/timer/renesas,ostm.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas OS Timer (OSTM)
8
9maintainers:
10  - Chris Brandt <chris.brandt@renesas.com>
11  - Geert Uytterhoeven <geert+renesas@glider.be>
12
13description:
14  The OSTM is a multi-channel 32-bit timer/counter with fixed clock source that
15  can operate in either interval count down timer or free-running compare match
16  mode.
17
18  Channels are independent from each other.
19
20properties:
21  compatible:
22    items:
23      - enum:
24          - renesas,r7s72100-ostm  # RZ/A1H
25          - renesas,r7s9210-ostm   # RZ/A2M
26          - renesas,r9a07g043-ostm # RZ/G2UL
27          - renesas,r9a07g044-ostm # RZ/G2{L,LC}
28          - renesas,r9a07g054-ostm # RZ/V2L
29      - const: renesas,ostm        # Generic
30
31  reg:
32    maxItems: 1
33
34  interrupts:
35    maxItems: 1
36
37  clocks:
38    maxItems: 1
39
40  power-domains:
41    maxItems: 1
42
43  resets:
44    maxItems: 1
45
46required:
47  - compatible
48  - reg
49  - interrupts
50  - clocks
51  - power-domains
52
53if:
54  properties:
55    compatible:
56      contains:
57        enum:
58          - renesas,r9a07g043-ostm
59          - renesas,r9a07g044-ostm
60          - renesas,r9a07g054-ostm
61then:
62  required:
63    - resets
64
65additionalProperties: false
66
67examples:
68  - |
69    #include <dt-bindings/clock/r7s72100-clock.h>
70    #include <dt-bindings/interrupt-controller/arm-gic.h>
71    ostm0: timer@fcfec000 {
72            compatible = "renesas,r7s72100-ostm", "renesas,ostm";
73            reg = <0xfcfec000 0x30>;
74            interrupts = <GIC_SPI 102 IRQ_TYPE_EDGE_RISING>;
75            clocks = <&mstp5_clks R7S72100_CLK_OSTM0>;
76            power-domains = <&cpg_clocks>;
77    };
78