Commit | Line | Data |
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8006c944 JC |
1 | System Power Management Interface (SPMI) Controller |
2 | ||
3 | This document defines a generic set of bindings for use by SPMI controllers. A | |
4 | controller is modelled in device tree as a node with zero or more child nodes, | |
5 | each representing a unique slave on the bus. | |
6 | ||
7 | Required properties: | |
8 | - #address-cells : must be set to 2 | |
9 | - #size-cells : must be set to 0 | |
10 | ||
11 | Child nodes: | |
12 | ||
13 | An SPMI controller node can contain zero or more child nodes representing slave | |
14 | devices on the bus. Child 'reg' properties are specified as an address, type | |
15 | pair. The address must be in the range 0-15 (4 bits). The type must be one of | |
16 | SPMI_USID (0) or SPMI_GSID (1) for Unique Slave ID or Group Slave ID respectively. | |
17 | These are the identifiers "statically assigned by the system integrator", as | |
18 | per the SPMI spec. | |
19 | ||
20 | Each child node must have one and only one 'reg' entry of type SPMI_USID. | |
21 | ||
22 | #include <dt-bindings/spmi/spmi.h> | |
23 | ||
24 | spmi@.. { | |
25 | compatible = "..."; | |
26 | reg = <...>; | |
27 | ||
28 | #address-cells = <2>; | |
29 | #size-cells <0>; | |
30 | ||
31 | child@0 { | |
32 | compatible = "..."; | |
33 | reg = <0 SPMI_USID>; | |
34 | }; | |
35 | ||
36 | child@7 { | |
37 | compatible = "..."; | |
38 | reg = <7 SPMI_USID | |
39 | 3 SPMI_GSID>; | |
40 | }; | |
41 | }; |