Re: [PATCH 1/2] dt-bindings: dma: snps,dw-axi-dmac: Add compatible string for Agilex5

[Krzysztof Kozlowski]

On Wed, Nov 26, 2025 at 07:43:42AM +0000, Romli, Khairul Anuar wrote:
> On 21/11/2025 1:36 am, Rob Herring wrote:
> > On Thu, Nov 20, 2025 at 07:31:10PM +0800, Khairul Anuar Romli wrote:
> >> The address bus on Agilex5 is limited to 40 bits. When SMMU is enable this
> >> will cause address truncation and translation faults. Hence introducing
> >> "altr,agilex5-axi-dma" to enable platform specific configuration to
> >> configure the dma addressable bit mask.
> > 
> > That's likely a bus limitation, not an IP limitation. So that should be
> > handled with dma-ranges.
> > 
> > However, adding a specific compatible is perfectly fine.
> > 
> Would it be okay if I rephrase and send the next version with a 
> correction in the commit message body as your comment in this version?

Yes and your DTS patch might need changes - include proper dma-ranges.

I also do not see how separate compatible without any driver change
solved your case. That's a no-op patch from Linux driver point of view.

See also submitting patches in DT dir about the process how patches are
grouped together.

Best regards,
Krzysztof