linux-kernel - Re: [PATCH v2 1/5] dt-bindings: remoteproc: k3-dsp: correct optional sram properties for AM62A SoCs

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Date:   Thu, 10 Aug 2023 17:05:40 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Hari Nagalla <hnagalla@...com>
Cc:     nm@...com, vigneshr@...com, kristo@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/5] dt-bindings: remoteproc: k3-dsp: correct optional
 sram properties for AM62A SoCs

On Wed, Aug 09, 2023 at 07:58:46PM -0500, Hari Nagalla wrote:
> The C7xv-dsp on AM62A have 32KB L1 I-cache and a 64KB L1 D-cache. It
> does not have an addressable l1dram . So, remove this optional sram
> property from the bindings to fix device tree build warnings.
> 

> Also set the 'memory-regions' property as optional. This is because
> the remote processors can function without carveout regions.

That seems like an unrelated change that deserves its own commit..

> 
> Signed-off-by: Hari Nagalla <hnagalla@...com>
> ---
> Changes since v1:
>  - Corrected dsp node binding doc file to fix yamllint warnings for am62a.
> 
>  .../bindings/remoteproc/ti,k3-dsp-rproc.yaml     | 16 ++++++++++++++--
>  1 file changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> index f16e90380df1..8dd22c57e22d 100644
> --- a/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/ti,k3-dsp-rproc.yaml
> @@ -111,7 +111,6 @@ else:
>      properties:
>        compatible:
>          enum:
> -          - ti,am62a-c7xv-dsp
>            - ti,j721e-c71-dsp
>            - ti,j721s2-c71-dsp
>    then:
> @@ -124,6 +123,20 @@ else:
>          items:
>            - const: l2sram
>            - const: l1dram
> +  else:
> +    if:
> +      properties:
> +        compatible:
> +          enum:
> +            - ti,am62a-c7xv-dsp
> +    then:
> +      properties:
> +        reg:
> +          items:
> +            - description: Address and Size of the L2 SRAM internal memory region
> +        reg-names:
> +          items:
> +            - const: l2sram
>  
>  required:
>    - compatible
> @@ -135,7 +148,6 @@ required:
>    - resets
>    - firmware-name
>    - mboxes
> -  - memory-region
>  
>  unevaluatedProperties: false
>  
> -- 
> 2.34.1
> 

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