请问,imx6dl的声卡接口,可以不使用sdma吗?是因为我们跑双系统,core1已经使用了sdma,core0 linux需要屏蔽sdma。
Hello Jianhui,
Whether to use DMA is determined by fsl_ssi.c. you can read the code, and pay attention to ssi_private->use_dma.
fsl_ssi.c is in linux_top/sound/soc/fsl/
Have a nice day!
BR,
weidong