xref: /linux/Documentation/devicetree/bindings/rtc/renesas,rz-rtca3.yaml (revision 7f71507851fc7764b36a3221839607d3a45c2025) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/renesas,rz-rtca3.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas RTCA-3 Real Time Clock
8
9maintainers:
10  - Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
11
12allOf:
13  - $ref: rtc.yaml#
14
15properties:
16  compatible:
17    items:
18      - enum:
19          - renesas,r9a08g045-rtca3 # RZ/G3S
20      - const: renesas,rz-rtca3
21
22  reg:
23    maxItems: 1
24
25  interrupts:
26    items:
27      - description: Alarm interrupt
28      - description: Periodic interrupt
29      - description: Carry interrupt
30
31  interrupt-names:
32    items:
33      - const: alarm
34      - const: period
35      - const: carry
36
37  clocks:
38    items:
39      - description: RTC bus clock
40      - description: RTC counter clock
41
42  clock-names:
43    items:
44      - const: bus
45      - const: counter
46
47  power-domains:
48    maxItems: 1
49
50  resets:
51    items:
52      - description: VBATTB module reset
53
54required:
55  - compatible
56  - reg
57  - interrupts
58  - interrupt-names
59  - clocks
60  - clock-names
61  - power-domains
62  - resets
63
64additionalProperties: false
65
66examples:
67  - |
68    #include <dt-bindings/clock/r9a08g045-cpg.h>
69    #include <dt-bindings/clock/renesas,r9a08g045-vbattb.h>
70    #include <dt-bindings/interrupt-controller/arm-gic.h>
71    #include <dt-bindings/interrupt-controller/irq.h>
72
73    rtc@1004ec00 {
74        compatible = "renesas,r9a08g045-rtca3", "renesas,rz-rtca3";
75        reg = <0x1004ec00 0x400>;
76        interrupts = <GIC_SPI 315 IRQ_TYPE_LEVEL_HIGH>,
77                     <GIC_SPI 316 IRQ_TYPE_LEVEL_HIGH>,
78                     <GIC_SPI 317 IRQ_TYPE_LEVEL_HIGH>;
79        interrupt-names = "alarm", "period", "carry";
80        clocks = <&cpg CPG_MOD R9A08G045_VBAT_BCLK>, <&vbattclk VBATTB_VBATTCLK>;
81        clock-names = "bus", "counter";
82        power-domains = <&cpg>;
83        resets = <&cpg R9A08G045_VBAT_BRESETN>;
84    };
85