Hello, On 20/06/2021 22:01:48-0700, Amrun Nisha.R wrote: > Hi, > > I am using tlv320aic3104 in one of my project, The hardware is wired > in such a way that the I2C lines from tlv320aic3104 is connected to a > separate microprocessor which performs the init. > > The SAI lines of tlv320aic3104 are connected to IMX8M SAI lines, I am > running linux in IMX8M. ALSA says no sound cards found. > > I would like to know whether this kind of setup where the i2c is used > by a separate processor and using the SAI lines in a different device > that runs linux will work. Kindly advice
To support that, you will have to write your own card driver or at least write a device tree sound node with a dummy codec as Linux will not be configuring it. See https://bootlin.com/pub/conferences/2020/lee/belloni-alsa-asoc/belloni-alsa-asoc.pdf -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com
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