Hello,
No, the available LA9310 documentation does not provide enough information to directly map ADRV9002 SSI/LVDS onto the LA9310 LLCP interface. LA9310 documents do define the LLCP pins, link style, transaction types, and electrical/timing characteristics, and they also show that the internal ADC/DAC can be put into low-power modes. But I could not find documentation that specifies the LLCP details you asked for at the level needed for an ADRV9002 interoperability design: lane count beyond the single data+strobe pair per direction, exact end-to-end serial sample word format for I/Q streaming, explicit I/Q bit ordering on the LLCP pins, or any statement that LLCP is SSI-compatible
Regards