Hi Timur,

In situations where it doesn't matter which I2C bus is #1 and which one is #2,
then I think the code should just initialize idx based on the order the nodes
are found in the tree.

In situations where it does matter, then we should use cell-index.

that's what I did in i2c-cpm, as well. However, here I use the property
"linux,i2c-index" instead (see http://patchwork.ozlabs.org/linuxppc/patch?id=18603).

Thanks,
Jochen