# Re: \[PATCH v4 13/16\] dt-bindings: arm: Add virtio transport for SCMI

- From: Rob Herring \<robh@kernel.org\>
- Date: 2021-06-24 19:23:12 
- List: virtualization
- Page: https://ratatoskr.run/virtualization/2021/06/1425268
- Thread: https://ratatoskr.run/linux-arm-kernel/2021/06/1411553/t.md

```text
On Fri, 11 Jun 2021 17:59:34 +0100, Cristian Marussi wrote:
> From: Igor Skalkin <redacted>
> 
> Document the properties for arm,scmi-virtio compatible nodes.
> The backing virtio SCMI device is described in patch [1].
> 
> While doing that, make shmem property required only for pre-existing
> mailbox and smc transports, since virtio-scmi does not need it.
> 
> [1] https://lists.oasis-open.org/archives/virtio-comment/202102/msg00018.html
> 
> CC: Rob Herring <robh+dt@kernel.org>
> CC: <redacted>
> Signed-off-by: Igor Skalkin <redacted>
> [ Peter: Adapted patch for submission to upstream. ]
> Co-developed-by: Peter Hilber <redacted>
> Signed-off-by: Peter Hilber <redacted>
> [ Cristian: converted to yaml format, moved shmen required property. ]
> Co-developed-by: Cristian Marussi <cristian.marussi@arm.com>
> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
> ---
> v3 --> V4
> - convertd to YAML
> - make shmem required only for pre-existing mailbox and smc transport
> - updated VirtIO specification patch message reference
> - dropped virtio-mmio SCMI device example since really not pertinent to
>   virtio-scmi dt bindings transport: it is not even referenced in SCMI
>   virtio DT node since they are enumerated by VirtIO subsystem and there
>   could be PCI based SCMI devices anyway.
> ---
>  Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
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