89459 is an automotive device and the automotive devices leverage their own Linux release train.
The 54591 is the commercial equivalent, and this device is supported in the latest FMAC release here: Wi-Fi/Bluetooth for Linux
DHD is no longer supported for new designs, so reach out to your local Cypress sales team if that is a requirement.
Yes, I think we have CYW54591. So there are two terms used, bcm4359D0 and CYW54591. What does these two mean?
What are the importance of these fmac and dhd driver and their differences?
Does FMAC driver has runtime PM support?