1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,s5pv210-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Samsung S5P6442/S5PC110/S5PV210 SoC clock controller
8
9 maintainers:
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - Tomasz Figa <tomasz.figa@gmail.com>
14
15 description: |
16 Expected external clocks, defined in DTS as fixed-rate clocks with a matching
17 name::
18 - "xxti" - external crystal oscillator connected to XXTI and XXTO pins of
19 the SoC,
20 - "xusbxti" - external crystal oscillator connected to XUSBXTI and XUSBXTO
21 pins of the SoC,
22
23 All available clocks are defined as preprocessor macros in
24 include/dt-bindings/clock/s5pv210.h header.
25
26 properties:
27 compatible:
28 enum:
29 - samsung,s5pv210-clock
30 - samsung,s5p6442-clock
31
32 clocks:
33 items:
34 - description: xxti clock
35 - description: xusbxti clock
36
37 clock-names:
38 items:
39 - const: xxti
40 - const: xusbxti
41
42 "#clock-cells":
43 const: 1
44
45 reg:
46 maxItems: 1
47
48 required:
49 - compatible
50 - "#clock-cells"
51 - reg
52
53 additionalProperties: false
54
55 examples:
56 - |
57 #include <dt-bindings/clock/s5pv210.h>
58
59 xxti: clock-0 {
60 compatible = "fixed-clock";
61 clock-frequency = <0>;
62 clock-output-names = "xxti";
63 #clock-cells = <0>;
64 };
65
66 xusbxti: clock-1 {
67 compatible = "fixed-clock";
68 clock-frequency = <0>;
69 clock-output-names = "xusbxti";
70 #clock-cells = <0>;
71 };
72
73 clock-controller@e0100000 {
74 compatible = "samsung,s5pv210-clock";
75 reg = <0xe0100000 0x10000>;
76 clock-names = "xxti", "xusbxti";
77 clocks = <&xxti>, <&xusbxti>;
78 #clock-cells = <1>;
79 };
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