42 lines
1.1 KiB
Plaintext
42 lines
1.1 KiB
Plaintext
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System Power Management Interface (SPMI) Controller
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This document defines a generic set of bindings for use by SPMI controllers. A
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controller is modelled in device tree as a node with zero or more child nodes,
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each representing a unique slave on the bus.
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Required properties:
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- #address-cells : must be set to 2
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- #size-cells : must be set to 0
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Child nodes:
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An SPMI controller node can contain zero or more child nodes representing slave
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devices on the bus. Child 'reg' properties are specified as an address, type
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pair. The address must be in the range 0-15 (4 bits). The type must be one of
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SPMI_USID (0) or SPMI_GSID (1) for Unique Slave ID or Group Slave ID respectively.
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These are the identifiers "statically assigned by the system integrator", as
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per the SPMI spec.
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Each child node must have one and only one 'reg' entry of type SPMI_USID.
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#include <dt-bindings/spmi/spmi.h>
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spmi@.. {
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compatible = "...";
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reg = <...>;
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#address-cells = <2>;
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#size-cells = <0>;
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child@0 {
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compatible = "...";
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reg = <0 SPMI_USID>;
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};
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child@7 {
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compatible = "...";
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reg = <7 SPMI_USID
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3 SPMI_GSID>;
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};
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};
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