linux-kernel - RE: [PATCH 1/9] dt-bindings: remoteproc: imx

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Date:   Wed, 19 Jan 2022 02:20:30 +0000
From:   Peng Fan <peng.fan@....com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        "Peng Fan (OSS)" <peng.fan@....nxp.com>
CC:     "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        "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>,
        "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 1/9] dt-bindings: remoteproc: imx_rproc: support i.MX8QXP

> Subject: Re: [PATCH 1/9] dt-bindings: remoteproc: imx_rproc: support
> i.MX8QXP
> 
> On Tue, Jan 11, 2022 at 11:33:25AM +0800, Peng Fan (OSS) wrote:
> > From: Peng Fan <peng.fan@....com>
> >
> > Add i.MX8QXP compatible
> >
> > Add a new property rsrc-id for SoC which supports SCFW. This rsrc-id
> 
> You are introducing an acronym that doesn't have a definition - I have to grep
> the kernel tree to have an idea of what SCFW is.  That consumes time that I
> don't have to review your code or someone else's.

Sorry. SCFW(System controller Unit Firmware).

> 
> > is used to check whether remote process is under control of Linux or
> 
> s/process/processor

Fix in v2.

Thanks,
Peng.

> 
> > 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>
> > ---
> >  .../devicetree/bindings/remoteproc/fsl,imx-rproc.yaml  | 10
> > ++++++++++
> >  1 file changed, 10 insertions(+)
> >
> > diff --git
> > a/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > b/Documentation/devicetree/bindings/remoteproc/fsl,imx-rproc.yaml
> > index fc16d903353e..ed1bcb3046a9 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
> > @@ -59,6 +60,15 @@ 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
> > +    maxItems: 1
> > +
> >  required:
> >    - compatible
> >
> > --
> > 2.25.1
> >