On Mon, Dec 12, 2016 at 12:35 PM, Luis de Oliveira
[off-list ref] wrote:

Hi all,

Please don't top post.

The slave address could be set by the I2C slave backend so I can't use it to setup the controller.
A boolean property was my initial approach then Andy and Wolfram Sang suggested the use of compatible strings and later It was suggested to use a property to select mode but I can do it again if it's the best way.
Can you please tell me where should it be documented?

bindings/i2c/i2c.txt.

Actually, looking at this some more, we already have a way to describe
the controller being a slave device with the I2C_OWN_SLAVE_ADDRESS
flag in the reg property. We should just need a helper to read reg
property of each child and check for the bit set.

Rob