xref: /freebsd/sys/contrib/device-tree/Bindings/rtc/s3c-rtc.yaml (revision a90b9d0159070121c221b966469c3e36d912bf82) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/s3c-rtc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Samsung S3C, S5P and Exynos Real Time Clock controller
8
9maintainers:
10  - Krzysztof Kozlowski <krzk@kernel.org>
11
12properties:
13  compatible:
14    oneOf:
15      - enum:
16          - samsung,s3c2410-rtc
17          - samsung,s3c2416-rtc
18          - samsung,s3c2443-rtc
19          - samsung,s3c6410-rtc
20      - items:
21          - enum:
22              - samsung,exynos7-rtc
23              - samsung,exynos850-rtc
24          - const: samsung,s3c6410-rtc
25      - const: samsung,exynos3250-rtc
26        deprecated: true
27
28  reg:
29    maxItems: 1
30
31  clocks:
32    description:
33      Must contain a list of phandle and clock specifier for the rtc
34      clock and in the case of a s3c6410 compatible controller, also
35      a source clock.
36    minItems: 1
37    maxItems: 2
38
39  clock-names:
40    description:
41      Must contain "rtc" and for a s3c6410 compatible controller
42      also "rtc_src".
43    minItems: 1
44    maxItems: 2
45
46  interrupts:
47    description:
48      Two interrupt numbers to the cpu should be specified. First
49      interrupt number is the rtc alarm interrupt and second interrupt number
50      is the rtc tick interrupt. The number of cells representing a interrupt
51      depends on the parent interrupt controller.
52    minItems: 2
53    maxItems: 2
54
55allOf:
56  - $ref: rtc.yaml#
57  - if:
58      properties:
59        compatible:
60          contains:
61            enum:
62              - samsung,s3c6410-rtc
63              - samsung,exynos3250-rtc
64    then:
65      properties:
66        clocks:
67          minItems: 2
68          maxItems: 2
69        clock-names:
70          items:
71            - const: rtc
72            - const: rtc_src
73    else:
74      properties:
75        clocks:
76          minItems: 1
77          maxItems: 1
78        clock-names:
79          items:
80            - const: rtc
81
82unevaluatedProperties: false
83
84examples:
85  - |
86    #include <dt-bindings/clock/exynos5420.h>
87    #include <dt-bindings/clock/samsung,s2mps11.h>
88
89    rtc@10070000 {
90        compatible = "samsung,s3c6410-rtc";
91        reg = <0x10070000 0x100>;
92        interrupts = <0 44 4>, <0 45 4>;
93        clocks = <&clock CLK_RTC>,
94                 <&s2mps11_osc S2MPS11_CLK_AP>;
95        clock-names = "rtc", "rtc_src";
96    };
97