xref: /linux/Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.yaml (revision 6e9a12f85a7567bb9a41d5230468886bd6a27b20) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/nvidia,tegra20-rtc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NVIDIA Tegra real-time clock
8
9maintainers:
10  - Thierry Reding <thierry.reding@gmail.com>
11  - Jon Hunter <jonathanh@nvidia.com>
12
13description: |
14  The Tegra RTC maintains seconds and milliseconds counters, and five
15  alarm registers. The alarms and other interrupts may wake the system
16  from low-power state.
17
18properties:
19  compatible:
20    oneOf:
21      - const: nvidia,tegra20-rtc
22      - items:
23          - enum:
24              - nvidia,tegra30-rtc
25              - nvidia,tegra114-rtc
26              - nvidia,tegra124-rtc
27              - nvidia,tegra210-rtc
28              - nvidia,tegra186-rtc
29              - nvidia,tegra194-rtc
30              - nvidia,tegra234-rtc
31              - nvidia,tegra264-rtc
32          - const: nvidia,tegra20-rtc
33
34  reg:
35    maxItems: 1
36
37  interrupts:
38    maxItems: 1
39
40  clocks:
41    maxItems: 1
42
43  clock-names:
44    items:
45      - const: rtc
46
47additionalProperties: false
48
49required:
50  - compatible
51  - reg
52  - interrupts
53  - clocks
54
55examples:
56  - |
57    timer@7000e000 {
58        compatible = "nvidia,tegra20-rtc";
59        reg = <0x7000e000 0x100>;
60        interrupts = <0 2 0x04>;
61        clocks = <&tegra_car 4>;
62    };
63