xref: /linux/Documentation/devicetree/bindings/clock/imx8m-clock.yaml (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04) 
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          minItems: 7
59          maxItems: 7
60          items:
61            - description: 32k osc
62            - description: 25m osc
63            - description: 27m osc
64            - description: ext1 clock input
65            - description: ext2 clock input
66            - description: ext3 clock input
67            - description: ext4 clock input
68        clock-names:
69          minItems: 7
70          maxItems: 7
71          items:
72            - const: ckil
73            - const: osc_25m
74            - const: osc_27m
75            - const: clk_ext1
76            - const: clk_ext2
77            - const: clk_ext3
78            - const: clk_ext4
79    else:
80      properties:
81        clocks:
82          items:
83            - description: 32k osc
84            - description: 24m osc
85            - description: ext1 clock input
86            - description: ext2 clock input
87            - description: ext3 clock input
88            - description: ext4 clock input
89
90        clock-names:
91          items:
92            - const: osc_32k
93            - const: osc_24m
94            - const: clk_ext1
95            - const: clk_ext2
96            - const: clk_ext3
97            - const: clk_ext4
98
99additionalProperties: false
100
101examples:
102  # Clock Control Module node:
103  - |
104    clock-controller@30380000 {
105        compatible = "fsl,imx8mm-ccm";
106        reg = <0x30380000 0x10000>;
107        #clock-cells = <1>;
108        clocks = <&osc_32k>, <&osc_24m>, <&clk_ext1>, <&clk_ext2>,
109                 <&clk_ext3>, <&clk_ext4>;
110        clock-names = "osc_32k", "osc_24m", "clk_ext1", "clk_ext2",
111                      "clk_ext3", "clk_ext4";
112    };
113
114  - |
115    clock-controller@30390000 {
116        compatible = "fsl,imx8mq-ccm";
117        reg = <0x30380000 0x10000>;
118        #clock-cells = <1>;
119        clocks = <&ckil>, <&osc_25m>, <&osc_27m>, <&clk_ext1>,
120                 <&clk_ext2>, <&clk_ext3>, <&clk_ext4>;
121        clock-names = "ckil", "osc_25m", "osc_27m", "clk_ext1",
122                      "clk_ext2", "clk_ext3", "clk_ext4";
123    };
124
125...
126