Re: dmaengine: fsl-edma: dmatest timeout

From: Frank Li
Date: Tue Nov 28 2023 - 10:38:57 EST


On Tue, Nov 28, 2023 at 12:43:59PM +0800, wangxiaolei wrote:
> Hi
>
> When I executed the following command to do dmatest on the imx8qm platform,
>
> I found that the timeout occurred on the current mainline kernel:
>
>
> modprobe dmatest run=1 iterations=42
>

dmatest use mem to mem transfer. It seldom used at actual system. Let me
check it.

Frank

>
> I found that the completion interrupt was not received in
> fsl_edma3_tx_handler().
>
> I didn't find any special configuration from the manual. Can anyone give
> some suggestions?
>
>
> thanks
>
> xiaolei
>