linux-kernel - RE: [PATCH 3/3] arm64: dts: imx8mp: add mu node

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Message-ID: <DB6PR0402MB27602682E90E4CED55244BCC88B60@DB6PR0402MB2760.eurprd04.prod.outlook.com>
Date:   Wed, 20 May 2020 03:01:23 +0000
From:   Peng Fan <peng.fan@....com>
To:     Fabio Estevam <festevam@...il.com>
CC:     Shawn Guo <shawnguo@...nel.org>,
        Fabio Estevam <fabio.estevam@....com>,
        Sascha Hauer <kernel@...gutronix.de>,
        Aisheng Dong <aisheng.dong@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...nel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        dl-linux-imx <linux-imx@....com>,
        Leonard Crestez <leonard.crestez@....com>,
        Daniel Baluta <daniel.baluta@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, linux-clk <linux-clk@...r.kernel.org>
Subject: RE: [PATCH 3/3] arm64: dts: imx8mp: add mu node

> Subject: Re: [PATCH 3/3] arm64: dts: imx8mp: add mu node
> 
> Hi Peng,
> 
> On Tue, May 19, 2020 at 11:15 PM <peng.fan@....com> wrote:
> 
> > +                       mu: mailbox@...a0000 {
> > +                               compatible = "fsl,imx6sx-mu";
> 
> This should be better described as:
> 
> compatible = "fsl,imx8mp-mu", "fsl,imx6sx-mu";
> 
> From Documentation/devicetree/bindings/mailbox/fsl,mu.txt:
> 
> "The "fsl,imx6sx-mu" compatible is seen as generic and should be included
> together with SoC specific compatible."

Nothing specific in i.MX8MP for the mu part, so do we really need
add "fsl,imx8mp-mu"?

Thanks,
Peng.