Thierry, On Thu, Sep 3, 2015 at 2:39 AM, Thierry Reding <treding@xxxxxxxxxx> wrote: > Perhaps the I2C core needs to be taught to look at the adapter's > ->dev.parent->of_node in of_find_i2c_adapter_by_node(). As I understand > it the purpose for registering a separate struct device for each I2C > controller is so that there's an I2C parent for all slaves. At the same > time every controller sets up ->dev.parent, and that parent's OF node is > what we really want when we look up an I2C adapter by OF node. In other > words, the OF node by which I2C adapters are referenced is always that > of its parent device, as far as I can tell. > > Wolfram, do you know of any cases where adapter->dev.of_node would not > be the same as adapter->dev.parent->of_node? This sounds pretty reasonable to me. Certainly it would be a pretty reasonable fallback if adapter->dev.of_node was NULL. -Doug -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
