Re: [PATCH v2 3/5] arm64: dts: qcom: sc7280: Add dma-coherent property into venus node

[Krzysztof Kozlowski]

On Tue, Aug 18, 2026 at 09:24:16PM +0530, Vishnu Reddy wrote:
> The venus video hardware on SC7280 is IO-coherent hardware: even though
> the driver does dma_sync*() calls for the input and output buffers, the
> venus node still needs to declare dma-coherent so that the DMA mapping
> layer relies on this hardware level snooping to keep the CPU cache and
> the DMA buffers in sync. This avoids the unnecessary cache clean or
> invalidate operations performed by the dma_sync*() calls, which are not
> required once hardware level snooping is enabled via dma-coherent.
> 
> Add the dma-coherent property to the venus node to describe this
> hardware capability.
> 
> Fixes: 37613aee2179 ("arm64: dts: qcom: sc7280: Add venus DT node")
> Cc: stable@xxxxxxxxxxxxxxx

Nope, nothing to be fixed here. I already said it last time.

Best regards,
Krzysztof