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
7 title: Samsung S3C, S5P and Exynos Real Time Clock controller
8
9 maintainers:
10 - Krzysztof Kozlowski <krzk@kernel.org>
11
12 properties:
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
55 allOf:
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
82 unevaluatedProperties: false
83
84 examples:
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 };
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