F_PWR_MODE
[F_PWR_MODE] = REG_FIELD(MSA311_PWR_MODE_REG, 6, 7),
err = regmap_field_read(msa311->fields[F_PWR_MODE], &pwr_mode);
err = regmap_field_read(msa311->fields[F_PWR_MODE], &prev_mode);
err = regmap_field_write(msa311->fields[F_PWR_MODE], mode);