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Why dummy machine driver imx-xtor.c is used im IMX8qxp

Question asked by wasim nazir on Mar 22, 2020
Latest reply on Mar 25, 2020 by igorpadykov



Bio_TICFSL, igorpadykov Suresh Rao M R


I have few questions wrt audio subsystem in IMX8x:


1) What is the use of xtor-driver in audio subsystem in imx?

2) In my system, SAI0 is used as GPIO's and so xtor is failing and audio is not working without xtor. By default SAI1 is used for wm8960 codec and then what is the use of xtor-dummy machine driver?



I want to understand the audio driver flow in imx8qxp. Any document or link will be helpful.



Thanks in Advance