CW2015_REG_VCELL
ret = cw_read_word(cw_bat, CW2015_REG_VCELL, ®_val);
regmap_reg_range(CW2015_REG_VCELL, CW2015_REG_CONFIG),
regmap_reg_range(CW2015_REG_VCELL, CW2015_REG_SOC + 1),