Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 11 Feb 2020 12:02:53 +0000
From:   Sudeep Holla <sudeep.holla@arm.com>
To:     Peng Fan <peng.fan@nxp.com>
Cc:     "robh+dt@kernel.org" <robh+dt@kernel.org>,
        "mark.rutland@arm.com" <mark.rutland@arm.com>,
        Marc Zyngier <maz@kernel.org>,
        "viresh.kumar@linaro.org" <viresh.kumar@linaro.org>,
        "f.fainelli@gmail.com" <f.fainelli@gmail.com>,
        dl-linux-imx <linux-imx@nxp.com>,
        "linux-arm-kernel@lists.infradead.org" 
        <linux-arm-kernel@lists.infradead.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "andre.przywara@arm.com" <andre.przywara@arm.com>
Subject: Re: [PATCH 1/2] dt-bindings: arm: arm,scmi: add smc/hvc transports
Message-ID: <20200211120253.GB52147@bogus>
References: <1580994086-17850-1-git-send-email-peng.fan@nxp.com>
 <1580994086-17850-2-git-send-email-peng.fan@nxp.com>
 <AM0PR04MB44814779B2307B20598E598288190@AM0PR04MB4481.eurprd04.prod.outlook.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <AM0PR04MB44814779B2307B20598E598288190@AM0PR04MB4481.eurprd04.prod.outlook.com>
User-Agent: Mutt/1.9.4 (2018-02-28)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Feb 10, 2020 at 12:59:43AM +0000, Peng Fan wrote:
> > Subject: [PATCH 1/2] dt-bindings: arm: arm,scmi: add smc/hvc transports
> >
> > From: Peng Fan <peng.fan@nxp.com>
> >
> > SCMI could use SMC/HVC as tranports, so add into devicetree binding doc.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> >  Documentation/devicetree/bindings/arm/arm,scmi.txt | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/arm/arm,scmi.txt
> > b/Documentation/devicetree/bindings/arm/arm,scmi.txt
> > index f493d69e6194..03cff8b55a93 100644
> > --- a/Documentation/devicetree/bindings/arm/arm,scmi.txt
> > +++ b/Documentation/devicetree/bindings/arm/arm,scmi.txt
> > @@ -14,7 +14,7 @@ Required properties:
> >
> >  The scmi node with the following properties shall be under the /firmware/
> > node.
> >
> > -- compatible : shall be "arm,scmi"
> > +- compatible : shall be "arm,scmi" or "arm,scmi-smc"
>
> One question here, are you fine with compatible "arm,scmi-smc" or
> add a new property 'transport' such as:

Not required.

> transport = "mailbox"; for mailbox
> transport = "smc"; for smc and hvc.
>
Each transport will have it's own specific property like mailboxes for
mailbox, smc/hvc function IDs for SMC/HVC. That should be sufficient.

--
Regards,
Sudeep