we have a system based on iMX8M Nano which first used QSPI NOR flash as NV memory but due to higher required capacity we had to change to eMMC (conncted to uSDHC3).
On having activity on eMMC we can hear short audio interruptions (gaps).
We have to use 256 period size for alsa IO in order to fulfill low latency requirements.
Is there any way we can change interrupt priority or DMA priority so SAI gains higher priority than eMMC ?
We use Kernel 5.4.