From: Rob Herring <robh@kernel.org>
To: Vinod Koul <vkoul@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>
Cc: dmaengine@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] dt-bindings: dma: arm,pl330: Add missing 'iommus' property
Date: Fri, 2 Sep 2022 11:06:56 -0500 [thread overview]
Message-ID: <20220902160656.GA4168277-robh@kernel.org> (raw)
In-Reply-To: <20220801210237.1501488-1-robh@kernel.org>
On Mon, Aug 01, 2022 at 03:02:37PM -0600, Rob Herring wrote:
> The pl330 can be behind an IOMMU which is the case for Arm Juno board.
> Add the 'iommus' property allowing for 1 IOMMU entry per channel for
> writes and 1 IOMMU entry for reads.
>
> Signed-off-by: Rob Herring <robh@kernel.org>
> ---
> v2:
> - Include IOMMU entry for read channel
> ---
> Documentation/devicetree/bindings/dma/arm,pl330.yaml | 6 ++++++
> 1 file changed, 6 insertions(+)
Ping!
>
> diff --git a/Documentation/devicetree/bindings/dma/arm,pl330.yaml b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> index 2bec69b308f8..4a3dd6f5309b 100644
> --- a/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> +++ b/Documentation/devicetree/bindings/dma/arm,pl330.yaml
> @@ -55,6 +55,12 @@ properties:
>
> dma-coherent: true
>
> + iommus:
> + minItems: 1
> + maxItems: 9
> + description: Up to 1 IOMMU entry per DMA channel for writes and 1
> + IOMMU entry for reads.
> +
> power-domains:
> maxItems: 1
>
> --
> 2.34.1
>
>
next prev parent reply other threads:[~2022-09-02 16:12 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-01 21:02 [PATCH v2] dt-bindings: dma: arm,pl330: Add missing 'iommus' property Rob Herring
2022-09-02 16:06 ` Rob Herring [this message]
2022-09-04 16:11 ` Vinod Koul
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