AXP20X_CHRG_BAK_CTRL
regmap_reg_range(AXP20X_CHRG_BAK_CTRL, AXP20X_CHRG_BAK_CTRL),
ret = regmap_update_bits(info->regmap, AXP20X_CHRG_BAK_CTRL,
ret = axp288_charger_reg_readb(info, AXP20X_CHRG_BAK_CTRL, &info->backend_control);