Hi,

Please is there any reasonable way to use an existing codec driver controlled by gpio_desc (e.g. https://elixir.bootlin.com/linux/v5.12/source/sound/soc/codecs/ak4458.c#L47 ) where the actual pins are provided by outputs of an I2C GPIO expander?

I am trying to decide whether to base my setup (ADC + DAC + clock generator + I2S DAI, all controlled via I2C + pins via I2C GPIO expander) purely on ASoC, or whether to keep the ASoC driver minimal (like asoc-simple-card) and do all the I2C settings in userspace as part of the software which writes/reads audio data. It seems the ASoC path is way more complicated as it involves multiple layers of abstractions prone to errors from my side.

Thank you very much for your opinion and suggestions.

Best regards,

Pavel.