DA9063_PAGE_CON
error = iicdev_readfrom(dev, DA9063_PAGE_CON, ®, 1, IIC_WAIT);
error = iicdev_readfrom(sc->dev, DA9063_PAGE_CON, ®, 1, IIC_WAIT);
error = iicdev_writeto(sc->dev, DA9063_PAGE_CON, ®, 1, IIC_WAIT);