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SubjectRE: [EXTERNAL] Re: [PATCH v2 1/4] dt-bindings: mfd: Add TI TPS6594 PMIC
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>> +      A multi-PMIC synchronization scheme is implemented in the PMIC device
>> + to synchronize the power state changes with other PMIC devices. This is
>> + accomplished through a SPMI bus: the primary PMIC is the controller
>> + device on the SPMI bus, and the secondary PMICs are the target devices
>> + on the SPMI bus.
>
>Is this a TI specific feature?
>
This implementation of SPMI bus is a TI specific feature and is only supported between devices which have this specific implementation.

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