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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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