linux-kernel - RE: [PATCH V2 1/6] dt-bindings: remoteproc: imx

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Date:   Fri, 11 Mar 2022 01:59:04 +0000
From:   Peng Fan <peng.fan@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        "Peng Fan (OSS)" <peng.fan@....nxp.com>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "mathieu.poirier@...aro.org" <mathieu.poirier@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
CC:     "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 1/6] dt-bindings: remoteproc: imx_rproc: support
 i.MX8QXP

> Subject: Re: [PATCH V2 1/6] dt-bindings: remoteproc: imx_rproc: support
> i.MX8QXP
> 
> On 09/03/2022 11:21, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > Add i.MX8QXP compatible
> >
> > Add a new property rsrc-id(resource id) for SoC which supports
> > SCFW(System Controller Firmware). SCFW manages resources using
> > resource id, here the rsrc-id is used to check whether remote process
> > is under control of Linux or not.
> >
> > To i.MX8QM/QXP, when M4 is in the same hardware partition with
> > Cortex-A cores, need power up M4 through SCFW, then M4 could start. So
> > introduce power-domains property.
> >
> > Signed-off-by: Peng Fan <peng.fan@....com>
> > ---
> >  .../bindings/remoteproc/fsl,imx-rproc.yaml        | 15
> +++++++++++++++
> >  1 file changed, 15 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > index fc16d903353e..f25c203dd2f9 100644
> > --- a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > +++ b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > @@ -19,6 +19,7 @@ properties:
> >        - fsl,imx8mm-cm4
> >        - fsl,imx8mn-cm7
> >        - fsl,imx8mp-cm7
> > +      - fsl,imx8qxp-cm4
> >        - fsl,imx8ulp-cm33
> >        - fsl,imx7d-cm4
> >        - fsl,imx7ulp-cm4
> > @@ -27,6 +28,11 @@ properties:
> >    clocks:
> >      maxItems: 1
> >
> > +  entry:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> 
> Does not look like a generic property, so please add vendor prefix.
> Suffix also would look good, so:
> "fsl,entry-address"

Fix in next version

> 
> > +    description: |
> > +      Specify cpu entry address for SCU enabled processor.
> 
> s/cpu/CPU/

Fix in next version.

> 
> > +
> >    syscon:
> >      $ref: /schemas/types.yaml#/definitions/phandle
> >      description:
> > @@ -59,6 +65,15 @@ properties:
> >        Indicate whether need to load the default firmware and start the
> remote
> >        processor automatically.
> >
> > +  power-domains:
> > +    maxItems: 8
> > +
> > +  rsrc-id:
> > +    description:
> > +      This property is to specify the resource id of the remote processor
> in SoC
> > +      which supports SCFW
> 
> Needs type, vendor prefix.

Fix in next version.

Thanks,
Peng

> 
> > +    maxItems: 1
> > +
> >  required:
> >    - compatible
> >
> 
> 
> Best regards,
> Krzysztof