Re: [PATCH 0/4] media: qcom: camss: fixes for SoCs without IOMMU, RDI and CSID1 streaming

[Konrad Dybcio]

On 11/4/26 9:23 PM, Allan Siriani wrote:
> These fixes came out of bringing up the CAMSS on MSM8226 (Moto G 2013,
> "falcon", MT9M114 front camera on RDI), where the CAMSS is not behind an
> IOMMU. The MSM8226 support itself will be sent separately; the problems
> fixed here are generic.

I believe that there is indeed a IOMMU in front of this, at the very
least in front of the VFE and JPEG. I suppose this is "just" because
upstream doesn't support iommu on that SoC?

You may want to take a look at

https://lore.kernel.org/linux-arm-msm/20260809-msm8974-iommu-upstream-v1-0-87f5cd492560@xxxxxxxxxxxxxxxx/

+Cc Dmitry who poked at that topic

Konrad