Re: [PATCH v3 1/6] dt-bindings: iommu: arm,smmu: Document interconnects property

From: Bibek Kumar Patro

Date: Wed Jul 08 2026 - 11:24:09 EST




On 7/7/2026 10:12 PM, Dmitry Baryshkov wrote:
On Tue, Jul 07, 2026 at 06:06:59PM +0530, Bibek Kumar Patro wrote:


On 7/6/2026 11:09 PM, Dmitry Baryshkov wrote:
On Mon, Jul 06, 2026 at 10:26:34PM +0530, Bibek Kumar Patro wrote:
Some SoC implementations require a bandwidth vote on an interconnect
path before the SMMU register space is accessible. Add the optional

Why is it limited only to those SoCs? Is it also applicable to other
Qualcomm SoCs?


I was hoping to keep this series focused on the core infrastructure
changes: the bindings, base ICC bandwidth-voting support, and DT
interconnect properties for the platforms currently supported on
Qualcomm Linux and have been validated so far.

The additional targets have not been tested yet, so I'd prefer
to add their support in a separate follow-up series once validation
is complete, rather than growing this series further. WDYT?

Then it should be a part of the commit message. All SoCs since SDM12345
need to vote on the interconnect (and then, in the cover letter mention
that you convert only a few of the SoCs). We possibly can help with
testing on other platforms.


Ack, sounds reasonable.
I'll add the first platform onwards which interconnect voting is required in commit description.
And update the cover letter to clarify that this series adds
support for the Qualcomm Linux-supported targets available today, and
the list will be expanded in follow-up series as additional platforms
are enabled.

Thanks & regards,
Bibek

'interconnects' property to the binding to allow platform DT nodes
to describe this path.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>
Signed-off-by: Bibek Kumar Patro <bibek.patro@xxxxxxxxxxxxxxxx>
---
.../devicetree/bindings/iommu/arm,smmu.yaml | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)