Re: [PATCH v2 1/3] dt-bindings: mtd: cdns,hp-nfc: Add dma-coherent property

From: Rob Herring (Arm)

Date: Thu Dec 04 2025 - 16:36:36 EST



On Wed, 03 Dec 2025 07:47:33 +0800, Khairul Anuar Romli wrote:
> The Cadence HP NAND Flash Controller on supports DMA transactions through
> a coherent interconnect. In previous generations SoC (Stratix10 and Agilex)
> the interconnect was non-coherent, hence there is no need for dma-coherent
> property to be presence. In Agilex 5, the architecture has changed. It
> introduced a coherent interconnect that supports cache-coherent DMA.
>
> Signed-off-by: Khairul Anuar Romli <khairul.anuar.romli@xxxxxxxxxx>
> ---
> Changes in v2:
> - Rephrase commit message to describe why the property is needed now
> and was not needed previously.
> - Remove redundant statement.
> ---
> Documentation/devicetree/bindings/mtd/cdns,hp-nfc.yaml | 2 ++
> 1 file changed, 2 insertions(+)
>

Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>