what i want is to have multipule designs and change it depending on the scenario
is possible adau1761.bin to load another firmware at runtime and change the old one
In current implementation the name of firmware filename is hard-coded in driver. So for ADAU1761 it should be "adau1761.bin".
One solution would be to remove the adau1761 module. Copy the DSP firmware file to "/lib/firmware/" folder and load the module. When you want to load another one just remove again the ADAU1761 module, overwrite the firmware file with other and reload the module.
In this case you will tell the module what firmware file to load from "/lib/firmware/" folder.