AD4695_REG_REF_CTRL
ret = regmap_set_bits(st->regmap, AD4695_REG_REF_CTRL,
ret = regmap_clear_bits(st->regmap, AD4695_REG_REF_CTRL,
ret = regmap_set_bits(st->regmap, AD4695_REG_REF_CTRL,
return regmap_update_bits(st->regmap, AD4695_REG_REF_CTRL,