[RFC PATCH] dmaengine: xilinx_dma: Fix per-channel direction reporting via device_caps

[Pandey, Radhey Shyam]

[Public]

> -----Original Message-----
> From: Rahul Navale <rahulnavale04 at gmail.com>
> Sent: Friday, February 20, 2026 2:44 PM
> To: Folker Schwesinger <dev at folker-schwesinger.de>
> Cc: Rahul Navale <rahul.navale at ifm.com>; dmaengine at vger.kernel.org; linux-arm-
> kernel at lists.infradead.org; linux-kernel at vger.kernel.org; vkoul at kernel.org;
> Frank.Li at kernel.org; Simek, Michal <michal.simek at amd.com>; Gupta, Suraj
> <Suraj.Gupta2 at amd.com>; thomas.gessler at brueckmann-gmbh.de; Pandey,
> Radhey Shyam <radhey.shyam.pandey at amd.com>;
> tomi.valkeinen at ideasonboard.com; rahulnavale04 at gmail.com
> Subject: Re: [RFC PATCH] dmaengine: xilinx_dma: Fix per-channel direction
> reporting via device_caps
>
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>
> From: Rahul Navale <rahul.navale at ifm.com>
>
> Hi Folker,
>
> > Posting this as RFC because I can't verify this actually fixes the
> > regression as I don't have a ZynqMP. So Rahul, could you test if this
> > fixes the issue and report back?
>
> I tested this patch on my ZynqMP platform.
>

Can you help reproduce the issue at our end. How does your setup
looks like? Is it dependent on PL design ? Unless there is some
dependency I can try and triage it.


> Unfortunately, the issue still persists. Cyclic playback fails after the first buffer period.
>
> Regards,
> Rahul Navale