xref: /linux/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml (revision ae22a94997b8a03dcb3c922857c203246711f9d4) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: EN7523 Clock
8
9maintainers:
10  - Felix Fietkau <nbd@nbd.name>
11  - John Crispin <nbd@nbd.name>
12
13description: |
14  This node defines the System Control Unit of the EN7523 SoC,
15  a collection of registers configuring many different aspects of the SoC.
16
17  The clock driver uses it to read and configure settings of the
18  PLL controller, which provides clocks for the CPU, the bus and
19  other SoC internal peripherals.
20
21  Each clock is assigned an identifier and client nodes use this identifier
22  to specify which clock they consume.
23
24  All these identifiers can be found in:
25  [1]: <include/dt-bindings/clock/en7523-clk.h>.
26
27  The clocks are provided inside a system controller node.
28
29properties:
30  compatible:
31    items:
32      - const: airoha,en7523-scu
33
34  reg:
35    maxItems: 2
36
37  "#clock-cells":
38    description:
39      The first cell indicates the clock number, see [1] for available
40      clocks.
41    const: 1
42
43required:
44  - compatible
45  - reg
46  - '#clock-cells'
47
48additionalProperties: false
49
50examples:
51  - |
52    #include <dt-bindings/clock/en7523-clk.h>
53    scu: system-controller@1fa20000 {
54      compatible = "airoha,en7523-scu";
55      reg = <0x1fa20000 0x400>,
56            <0x1fb00000 0x1000>;
57      #clock-cells = <1>;
58    };
59