tps6105x_add_device
ret = tps6105x_add_device(tps6105x, &tps6105x_gpio_cell);
ret = tps6105x_add_device(tps6105x, &tps6105x_leds_cell);
ret = tps6105x_add_device(tps6105x, &tps6105x_flash_cell);
ret = tps6105x_add_device(tps6105x, &tps6105x_regulator_cell);