xref: /freebsd/sys/contrib/device-tree/Bindings/spmi/spmi.yaml (revision 02e9120893770924227138ba49df1edb3896112a) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spmi/spmi.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: System Power Management Interface (SPMI) Controller
8
9maintainers:
10  - Stephen Boyd <sboyd@kernel.org>
11
12description: |
13  The System Power Management (SPMI) controller is a 2-wire bus defined
14  by the MIPI Alliance for power management control to be used on SoC designs.
15
16  SPMI controllers are modelled in device tree using a generic set of
17  bindings defined here, plus any bus controller specific properties, if
18  needed.
19
20  Each SPMI controller has zero or more child nodes (up to 16 ones), each
21  one representing an unique slave at the bus.
22
23properties:
24  $nodename:
25    pattern: "^spmi@.*"
26
27  "#address-cells":
28    const: 2
29
30  "#size-cells":
31    const: 0
32
33patternProperties:
34  "@[0-9a-f]$":
35    description: up to 16 child PMIC nodes
36    type: object
37
38    properties:
39      reg:
40        items:
41          - minItems: 1
42            items:
43              - minimum: 0
44                maximum: 0xf
45              - enum: [ 0 ]
46                description:
47                  0 means user ID address. 1 is reserved for group ID
48                  address.
49
50    required:
51      - reg
52
53required:
54  - reg
55
56additionalProperties: true
57
58examples:
59  - |
60    #include <dt-bindings/spmi/spmi.h>
61
62    spmi@0 {
63      reg = <0 0>;
64
65      #address-cells = <2>;
66      #size-cells = <0>;
67
68      child@0 {
69        reg = <0 SPMI_USID>;
70      };
71
72      child@7 {
73        reg = <7 SPMI_USID>;
74      };
75    };
76