linux-kernel - RE: [PATCH V2 2/6] dt-bindings: remoteproc: imx

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Message-ID: <DU0PR04MB9417A914373C466BE76729AB880C9@DU0PR04MB9417.eurprd04.prod.outlook.com>
Date:   Fri, 11 Mar 2022 01:58:03 +0000
From:   Peng Fan <peng.fan@....com>
To:     Rob Herring <robh@...nel.org>,
        "Peng Fan (OSS)" <peng.fan@....nxp.com>
CC:     "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "mathieu.poirier@...aro.org" <mathieu.poirier@...aro.org>,
        "krzysztof.kozlowski@...onical.com" 
        <krzysztof.kozlowski@...onical.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        "linux-remoteproc@...r.kernel.org" <linux-remoteproc@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH V2 2/6] dt-bindings: remoteproc: imx_rproc: support
 i.MX8QM

> Subject: Re: [PATCH V2 2/6] dt-bindings: remoteproc: imx_rproc: support
> i.MX8QM
> 
> On Wed, Mar 09, 2022 at 06:21:14PM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > Add i.MX8QM compatible
> >
> > There are two general purpose M4, so add reg property to indicate the
> > id.
> 
> Where does the id come from? Is this just an index?

It is software use to identify which is m4_0 and which is m4_1,
just an index.

Thanks,
Peng.

> 
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> >  .../devicetree/bindings/remoteproc/fsl,imx-rproc.yaml         | 4
> ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > index f25c203dd2f9..41d366cff3cd 100644
> > --- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > @@ -20,6 +20,7 @@ properties:
> >        - fsl,imx8mn-cm7
> >        - fsl,imx8mp-cm7
> >        - fsl,imx8qxp-cm4
> > +      - fsl,imx8qm-cm4
> >        - fsl,imx8ulp-cm33
> >        - fsl,imx7d-cm4
> >        - fsl,imx7ulp-cm4
> > @@ -68,6 +69,9 @@ properties:
> >    power-domains:
> >      maxItems: 8
> >
> > +  reg:
> > +    maxItems: 1
> > +
> >    rsrc-id:
> >      description:
> >        This property is to specify the resource id of the remote
> > processor in SoC
> > --
> > 2.30.0
> >
> >