xref: /linux/Documentation/devicetree/bindings/clock/imx8m-clock.yaml (revision 24bce201d79807b668bf9d9e0aca801c5c0d5f78) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/imx8m-clock.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NXP i.MX8M Family Clock Control Module Binding
8
9maintainers:
10  - Anson Huang <Anson.Huang@nxp.com>
11
12description: |
13  NXP i.MX8M Mini/Nano/Plus/Quad clock control module is an integrated clock
14  controller, which generates and supplies to all modules.
15
16properties:
17  compatible:
18    enum:
19      - fsl,imx8mm-ccm
20      - fsl,imx8mn-ccm
21      - fsl,imx8mp-ccm
22      - fsl,imx8mq-ccm
23
24  reg:
25    maxItems: 1
26
27  clocks:
28    minItems: 6
29    maxItems: 7
30
31  clock-names:
32    minItems: 6
33    maxItems: 7
34
35  '#clock-cells':
36    const: 1
37    description:
38      The clock consumer should specify the desired clock by having the clock
39      ID in its "clocks" phandle cell. See include/dt-bindings/clock/imx8m-clock.h
40      for the full list of i.MX8M clock IDs.
41
42required:
43  - compatible
44  - reg
45  - clocks
46  - clock-names
47  - '#clock-cells'
48
49allOf:
50  - if:
51      properties:
52        compatible:
53          contains:
54            const: fsl,imx8mq-ccm
55    then:
56      properties:
57        clocks:
58          items:
59            - description: 32k osc
60            - description: 25m osc
61            - description: 27m osc
62            - description: ext1 clock input
63            - description: ext2 clock input
64            - description: ext3 clock input
65            - description: ext4 clock input
66        clock-names:
67          items:
68            - const: ckil
69            - const: osc_25m
70            - const: osc_27m
71            - const: clk_ext1
72            - const: clk_ext2
73            - const: clk_ext3
74            - const: clk_ext4
75    else:
76      properties:
77        clocks:
78          items:
79            - description: 32k osc
80            - description: 24m osc
81            - description: ext1 clock input
82            - description: ext2 clock input
83            - description: ext3 clock input
84            - description: ext4 clock input
85
86        clock-names:
87          items:
88            - const: osc_32k
89            - const: osc_24m
90            - const: clk_ext1
91            - const: clk_ext2
92            - const: clk_ext3
93            - const: clk_ext4
94
95additionalProperties: false
96
97examples:
98  # Clock Control Module node:
99  - |
100    clock-controller@30380000 {
101        compatible = "fsl,imx8mm-ccm";
102        reg = <0x30380000 0x10000>;
103        #clock-cells = <1>;
104        clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
105                 <&clk_ext3>, <&clk_ext4>;
106        clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
107                      "clk_ext3", "clk_ext4";
108    };
109
110  - |
111    clock-controller@30390000 {
112        compatible = "fsl,imx8mq-ccm";
113        reg = <0x30380000 0x10000>;
114        #clock-cells = <1>;
115        clocks = <&ckil>, <&osc_25m>, <&osc_27m>, <&clk_ext1>,
116                 <&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
117        clock-names = "ckil", "osc_25m", "osc_27m", "clk_ext1",
118                      "clk_ext2", "clk_ext3", "clk_ext4";
119    };
120
121...
122