linux-kernel - Re: [RFC PATCH v3 01/12] firmware: arm_scmi, smccc, mailbox: Make shmem based transports optional

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Date:   Mon, 21 Jun 2021 09:54:31 +0100
From:   Sudeep Holla <sudeep.holla@....com>
To:     Jassi Brar <jassisinghbrar@...il.com>
Cc:     Peter Hilber <peter.hilber@...nsynergy.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Igor Skalkin <igor.skalkin@...nsynergy.com>,
        Rob Herring <robh+dt@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        souvik.chakravarty@....com, alex.bennee@...aro.org,
        jean-philippe@...aro.org, mikhail.golubev@...nsynergy.com,
        anton.yakovlev@...nsynergy.com,
        Vasyl Vavrychuk <Vasyl.Vavrychuk@...nsynergy.com>,
        Andriy Tryshnivskyy <Andriy.Tryshnivskyy@...nsynergy.com>,
        Cristian Marussi <cristian.marussi@....com>,
        Mark Rutland <mark.rutland@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Subject: Re: [RFC PATCH v3 01/12] firmware: arm_scmi, smccc, mailbox: Make
 shmem based transports optional

On Sun, Jun 20, 2021 at 11:09:21PM -0500, Jassi Brar wrote:
> On Mon, May 10, 2021 at 7:22 PM Peter Hilber
> <peter.hilber@...nsynergy.com> wrote:
> 
> .....
> 
> > --- a/drivers/mailbox/Kconfig
> > +++ b/drivers/mailbox/Kconfig
> > @@ -1,6 +1,7 @@
> >  # SPDX-License-Identifier: GPL-2.0-only
> >  menuconfig MAILBOX
> >         bool "Mailbox Hardware Support"
> > +       select ARM_SCMI_HAVE_SHMEM
> >         help
> >           Mailbox is a framework to control hardware communication between
> >           on-chip processors through queued messages and interrupt driven
> >
> Isn't this too generic?
> Not all platforms, with a mailbox controller, use SCMI as the protocol.
>

Yikes! I agree Jassi, this looks super hack.

-- 
Regards,
Sudeep