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Message-ID: <20210501013448.GA4001859@robh.at.kernel.org>
Date:   Fri, 30 Apr 2021 20:34:48 -0500
From:   Rob Herring <robh@...nel.org>
To:     Benjamin Gaignard <benjamin.gaignard@...labora.com>
Cc:     joro@...tes.org, will@...nel.org, heiko@...ech.de,
        xxm@...k-chips.com, iommu@...ts.linux-foundation.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...labora.com
Subject: Re: [PATCH v2 2/4] dt-bindings: iommu: rockchip: Add compatible for
 v2

On Thu, Apr 22, 2021 at 04:16:00PM +0200, Benjamin Gaignard wrote:
> Add compatible for the second version of IOMMU hardware block.
> RK356x IOMMU can also be link to a power domain.
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
> ---
> version 2:
>  - Add power-domains property
> 
>  .../devicetree/bindings/iommu/rockchip,iommu.yaml          | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
> index 0db208cf724a..e54353ccd1ec 100644
> --- a/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/rockchip,iommu.yaml
> @@ -19,7 +19,9 @@ description: |+
>  
>  properties:
>    compatible:
> -    const: rockchip,iommu
> +    enum:
> +      - rockchip,iommu
> +      - rockchip,iommu-v2

This should be SoC specific.

>  
>    reg:
>      minItems: 1
> @@ -46,6 +48,9 @@ properties:
>    "#iommu-cells":
>      const: 0
>  
> +  power-domains:
> +    maxItems: 1
> +
>    rockchip,disable-mmu-reset:
>      $ref: /schemas/types.yaml#/definitions/flag
>      description: |
> -- 
> 2.25.1
> 

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