On 11/16/16 15:33, Rob Herring wrote:
>> +Optional properties
>> > +  - reg: I2C address. If and only if present the driver node
>> > +    should be placed into the i2c controller node where the
>> > +    tfp410 i2c is connected to (the current implementation does
>> > +    not yet support this).
> So this chip can work without programming I guess?
> 

Yes. Just powering it up is enough for most application.

> reg should only be not present if I2C is not connected in the design. It 
> can't be a function of what the driver supports. In otherwords, you 
> can't be moving this node around based on when you add I2C control.
> 

Ok, I'll try to implement a dummy i2c driver at the same time too. I can
not test anything related to it because I do not have a piece of HW with
tfp410 i2c wires connected, but it should not matter as long as I am
able to probe it as a i2c client.

Thanks,
Jyri

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