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

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Date:   Thu, 24 Jun 2021 13:22:55 -0600
From:   Rob Herring <robh@...nel.org>
To:     Cristian Marussi <cristian.marussi@....com>
Cc:     jean-philippe@...aro.org, Rob Herring <robh+dt@...nel.org>,
        vincent.guittot@...aro.org, alex.bennee@...aro.org,
        virtio-dev@...ts.oasis-open.org,
        virtualization@...ts.linux-foundation.org,
        Jonathan.Cameron@...wei.com, f.fainelli@...il.com,
        igor.skalkin@...nsynergy.com, Vasyl.Vavrychuk@...nsynergy.com,
        linux-kernel@...r.kernel.org, sudeep.holla@....com,
        peter.hilber@...nsynergy.com, Andriy.Tryshnivskyy@...nsynergy.com,
        anton.yakovlev@...nsynergy.com, souvik.chakravarty@....com,
        mikhail.golubev@...nsynergy.com,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        james.quinlan@...adcom.com, etienne.carriere@...aro.org
Subject: Re: [PATCH v4 13/16] dt-bindings: arm: Add virtio transport for SCMI

On Fri, 11 Jun 2021 17:59:34 +0100, Cristian Marussi wrote:
> From: Igor Skalkin <igor.skalkin@...nsynergy.com>
> 
> 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@...nel.org>
> CC: devicetree@...r.kernel.org
> Signed-off-by: Igor Skalkin <igor.skalkin@...nsynergy.com>
> [ Peter: Adapted patch for submission to upstream. ]
> Co-developed-by: Peter Hilber <peter.hilber@...nsynergy.com>
> Signed-off-by: Peter Hilber <peter.hilber@...nsynergy.com>
> [ Cristian: converted to yaml format, moved shmen required property. ]
> Co-developed-by: Cristian Marussi <cristian.marussi@....com>
> Signed-off-by: Cristian Marussi <cristian.marussi@....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@...nel.org>