Josh Cartwright | 8006c94 | 2014-02-12 13:44:23 -0600 | [diff] [blame] | 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 | }; |