ADMV1014_REG_IF_AMP_BB_AMP
ret = admv1014_spi_read(st, ADMV1014_REG_IF_AMP_BB_AMP, &data);
return admv1014_spi_update_bits(st, ADMV1014_REG_IF_AMP_BB_AMP, msk, data);
ret = admv1014_spi_read(st, ADMV1014_REG_IF_AMP_BB_AMP, &data);
addr = ADMV1014_REG_IF_AMP_BB_AMP;