linux-kernel - Re: [PATCH v5 1/2] dt-bindings: arm: Add new compatible for smc/hvc transport for SCMI

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Message-ID: <b1c9ad08-5aad-ccbd-247c-a5b2aaa42b5b@quicinc.com>
Date:   Mon, 9 Oct 2023 07:52:40 -0700
From:   Nikunj Kela <quic_nkela@...cinc.com>
To:     Sudeep Holla <sudeep.holla@....com>
CC:     <cristian.marussi@....com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <andersson@...nel.org>, <konrad.dybcio@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>
Subject: Re: [PATCH v5 1/2] dt-bindings: arm: Add new compatible for smc/hvc
 transport for SCMI


On 10/9/2023 7:41 AM, Sudeep Holla wrote:
> On Fri, Oct 06, 2023 at 09:42:05AM -0700, Nikunj Kela wrote:
>> Introduce compatible "qcom,scmi-smc" for SCMI smc/hvc transport channel for
>> Qualcomm virtual platforms.
>>
>> This compatible mandates populating an additional parameter 'capability-id'
>> from the last 8 bytes of the shmem channel.
>>
> While I am happy with the simplification here, I am also bit nervous how
> long before Qualcomm abandons this. I hope this is adopted as is in all
> internal and downstream code without any modifications and this is not
> just a push for upstreaming some change to minimise delta with internal/
> downstream code.
>
> --
> Regards,
> Sudeep

Qualcomm is using patch on all the virtual auto platforms using 
shmem/doorbell as scmi channel. This is already being used without any 
modifications in our downstream code. No delta for this patch series. 
Thanks!