Re: [PATCH v2] bus: fsl-mc: set dma_mask for the DPRC devices

[Ioana Ciornei]

On Fri, Jul 31, 2026 at 10:13:49PM +0200, Vincent Jardin via B4 Relay wrote:
> From: Vincent Jardin <vjardin@xxxxxxx>
> 
> On Layerscape platforms when SMMU is disabled by ATF, the root DPRC probes
> with its dma_mask pointer unset which leads to a notification:
>   "DMA mask not set"
> so the device is left with a zero DMA mask instead of a sane default.
> 
> Let's seed the masks for all cases.
> 
> It was tested on LX2160A with no SMMU on the MC domain: the warning is gone
> and the DPAA2 children probe unchanged.
> 
> Signed-off-by: Vincent Jardin <vjardin@xxxxxxx>

Reviewed-by: Ioana Ciornei <ioana.ciornei@xxxxxxx>