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WCD9335 output configuration - DragonBoard 820c - 96Boards Forum

WCD9335 output configuration

(Disclaimer: I’m actually not using an actual Dragonboard 820C but a SOM devkit with the same hardware. I hope you can still help me out)

My devkit has audio expansion headers that expose the same WCD9335 pins as the DB820C. I noticed that in the stock configuration (running Android 8 from CodeAurora), there’s only a single channel of differential line-out enabled. How can I change the configuration (through Slimbus, i2c isn’t hooked up) to have two differential line outs configured as a stereo source? I want to test an analog stereo amp on those ports. Alternatively, how do I enable SoundWire output?