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

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Message-ID: <b7ae988c-b420-83bc-0a4a-e82393d1549f@canonical.com>
Date:   Wed, 9 Mar 2022 18:18:39 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>,
        bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
        robh+dt@...nel.org
Cc:     shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        festevam@...il.com, linux-imx@....com,
        linux-remoteproc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Peng Fan <peng.fan@....com>
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"

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

s/cpu/CPU/

> +
>    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.

> +    maxItems: 1
> +
>  required:
>    - compatible
>  


Best regards,
Krzysztof