PAC1921_REG_CONTROL
ret = regmap_write(priv->regmap, PAC1921_REG_CONTROL, val);
ret = regmap_update_bits(priv->regmap, PAC1921_REG_CONTROL,
regmap_reg_range(PAC1921_REG_GAIN_CFG, PAC1921_REG_CONTROL),
regmap_reg_range(PAC1921_REG_GAIN_CFG, PAC1921_REG_CONTROL),