1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/clock/mediatek,mt7621-sysc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: MT7621 Clock Device Tree Bindings
8
9maintainers:
10  - Sergio Paracuellos <sergio.paracuellos@gmail.com>
11
12description: |
13  The MT7621 has a PLL controller from where the cpu clock is provided
14  as well as derived clocks for the bus and the peripherals. It also
15  can gate SoC device clocks.
16
17  Each clock is assigned an identifier and client nodes use this identifier
18  to specify the clock which they consume.
19
20  All these identifiers could be found in:
21  [1]: <include/dt-bindings/clock/mt7621-clk.h>.
22
23  The clocks are provided inside a system controller node.
24
25  This node is also a reset provider for all the peripherals.
26
27  Reset related bits are defined in:
28  [2]: <include/dt-bindings/reset/mt7621-reset.h>.
29
30properties:
31  compatible:
32    items:
33      - const: mediatek,mt7621-sysc
34      - const: syscon
35
36  reg:
37    maxItems: 1
38
39  "#clock-cells":
40    description:
41      The first cell indicates the clock number, see [1] for available
42      clocks.
43    const: 1
44
45  "#reset-cells":
46    description:
47      The first cell indicates the reset bit within the register, see
48      [2] for available resets.
49    const: 1
50
51  ralink,memctl:
52    $ref: /schemas/types.yaml#/definitions/phandle
53    description:
54      phandle of syscon used to control memory registers
55
56  clock-output-names:
57    maxItems: 8
58
59required:
60  - compatible
61  - reg
62  - '#clock-cells'
63  - ralink,memctl
64
65additionalProperties: false
66
67examples:
68  - |
69    #include <dt-bindings/clock/mt7621-clk.h>
70
71    sysc: sysc@0 {
72      compatible = "mediatek,mt7621-sysc", "syscon";
73      reg = <0x0 0x100>;
74      #clock-cells = <1>;
75      #reset-cells = <1>;
76      ralink,memctl = <&memc>;
77      clock-output-names = "xtal", "cpu", "bus",
78                           "50m", "125m", "150m",
79                           "250m", "270m";
80    };
81