linux-kernel - Re: [PATCH v5 10/22] dt-bindings: qcom-qce: Add 'iommus' to optional properties

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Message-ID: <YZAswXhDql3v2JqA@builder.lan>
Date:   Sat, 13 Nov 2021 15:23:13 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        bhupesh.linux@...il.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, robh+dt@...nel.org, agross@...nel.org,
        herbert@...dor.apana.org.au, davem@...emloft.net,
        stephan@...hold.net, Thara Gopinath <thara.gopinath@...aro.org>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v5 10/22] dt-bindings: qcom-qce: Add 'iommus' to optional
 properties

On Wed 10 Nov 04:59 CST 2021, Bhupesh Sharma wrote:

> Add the missing optional property - 'iommus' to the
> device-tree binding documentation for qcom-qce crypto IP.
> 
> This property describes the phandle(s) to apps_smmu node with sid mask.

"This property describes the iommu streams for crypto pipes" or
something along those lines - depending on what those streams actually
represent.

> 
> Cc: Thara Gopinath <thara.gopinath@...aro.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> ---
>  .../devicetree/bindings/crypto/qcom-qce.yaml          | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> index f35bdb9ee7a8..efe349e66ae7 100644
> --- a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> +++ b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> @@ -32,6 +32,12 @@ properties:
>        - const: bus
>        - const: core
>  
> +  iommus:
> +    minItems: 1
> +    maxItems: 8
> +    description: |

No need for the '|' here...

> +      phandle to apps_smmu node with sid mask.
> +
>    interconnects:
>      maxItems: 1
>      description:
> @@ -70,4 +76,9 @@ examples:
>          clock-names = "iface", "bus", "core";
>          dmas = <&cryptobam 2>, <&cryptobam 3>;
>          dma-names = "rx", "tx";
> +        iommus = <&apps_smmu 0x584 0x0011>,
> +                 <&apps_smmu 0x586 0x0011>,
> +                 <&apps_smmu 0x594 0x0011>,
> +                 <&apps_smmu 0x596 0x0011>;
> +

Extra empty line here.

Regards,
Bjorn

>      };
> -- 
> 2.31.1
>