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TAS3251: Linux driver RPI

Jan Pieter Coolwijk, van
Prodigy 70 points
Part Number: TAS3251
Other Parts Discussed in Thread: PCM5242, TPA3255

Tool/software:

I created a Linux (6.x) driver for the TAS3251. Based on PCM179X driver, with automatic loading of firmware, created from PPC3 output. Firmware extractor also provided. Two device tree overlays are added for the Raspberry Pi, one simple slave and the other for HD audio with a separate SI5351a clock generator. All tested and working. See:

github.com/.../tas3251

I wanted to use the same template for the PCM5242 DAC and a TPA3255 amplifier, but I did't yet get access to AICPUREPATH_STUDIO to be able to program some DSPcode. The idea is to program 2 BQ's for channel A and 2 different ones for channel B to create Linkwitz-Riley-4 crossover filters. Is this possible?