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
7 title: System Power Management Interface (SPMI) Controller
8
9 maintainers:
10 - Stephen Boyd <sboyd@kernel.org>
11
12 description: |
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
23 properties:
24 $nodename:
25 pattern: "^spmi@.*"
26
27 "#address-cells":
28 const: 2
29
30 "#size-cells":
31 const: 0
32
33 patternProperties:
34 "@[0-9a-f]$":
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
53 required:
54 - reg
55
56 additionalProperties: true
57
58 examples:
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 };
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