Our solutions are 953 and 954 and the source code of the driver is provided. You can refer to this source code to support 964.
Now fpdlink products have been suspended due to chip out of stock, sorry.
I don't know what your current state of knowledge is. If you don't understand i2C, you don't understand fpdlink, you don't understand registers. I think you should first learn the basics and be able to understand the information and code we provide now, and then proceed to your next work.