of_get_i2c_adapter_by_node
slave_adap = of_get_i2c_adapter_by_node(slave_np);
conn->bridge.ddc = of_get_i2c_adapter_by_node(phandle);
hdmi->ddc = of_get_i2c_adapter_by_node(ddc_node);
hdmi->ddc_adapt = of_get_i2c_adapter_by_node(ddc);
ddc = of_get_i2c_adapter_by_node(phandle);
output->ddc = of_get_i2c_adapter_by_node(ddc);
i2c = of_get_i2c_adapter_by_node(i2c_node);
muxc->parent = of_get_i2c_adapter_by_node(parent_np);
adap = of_get_i2c_adapter_by_node(priv->chan[new_chan].parent_np);
parent = of_get_i2c_adapter_by_node(parent_np);
parent = of_get_i2c_adapter_by_node(parent_np);
adapter = of_get_i2c_adapter_by_node(adapter_node);