linux-kernel - Re: [PATCH v5 1/2] dt-bindings: dma: snps,dw-axi-dmac: Add compatible string for Agilex5

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Message-ID: <176711774630.870949.13920707490957857831.robh@kernel.org>
Date: Tue, 30 Dec 2025 12:02:26 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Khairul Anuar Romli <khairul.anuar.romli@...era.com>
Cc: Conor Dooley <conor+dt@...nel.org>, Dinh Nguyen <dinguyen@...nel.org>,
	dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
	Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	devicetree@...r.kernel.org, Vinod Koul <vkoul@...nel.org>
Subject: Re: [PATCH v5 1/2] dt-bindings: dma: snps,dw-axi-dmac: Add
 compatible string for Agilex5


On Mon, 29 Dec 2025 11:49:01 +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.
> 
> Add a fallback capability for the compatible property to allow driver to
> probe and initialize with a newly added compatible string without requiring
> additional entry in the driver.
> 
> Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli@...era.com>
> ---
> Changes in v5:
> 	- No changes
> Changes in v4:
> 	- remove dma-ranges as it is no longer required
> Changes in v3:
> 	- Simple dma-ranges property with true and without description
> Changes in v2:
> 	- Add dma-ranges
> ---
>  .../devicetree/bindings/dma/snps,dw-axi-dmac.yaml  | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
> 

Reviewed-by: Rob Herring (Arm) <robh@...nel.org>