omap_i2c_add_bus
err = omap_i2c_add_bus(&i2c_pdata[i], i + 1);
return omap_i2c_add_bus(&i2c_pdata[bus_id - 1], bus_id);
int omap_i2c_add_bus(struct omap_i2c_bus_platform_data *i2c_pdata,