linux-kernel - Re: [PATCH] dt-bindings: ata: ahci-ceva: Cover all 4 iommus entries

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Date:   Thu, 4 May 2023 11:34:01 +0900
From:   Damien Le Moal <dlemoal@...nel.org>
To:     Michal Simek <michal.simek@....com>, linux-kernel@...r.kernel.org,
        monstr@...str.eu, michal.simek@...inx.com, git@...inx.com
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Piyush Mehta <piyush.mehta@...inx.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-ide@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: ata: ahci-ceva: Cover all 4 iommus entries

On 5/2/23 22:48, Michal Simek wrote:
> Current only one entry is enabled but IP itself is using 4 different IDs
> which are already listed in zynqmp.dtsi.
> 
> sata: ahci@...c0000 {
> 	compatible = "ceva,ahci-1v84";
> 	...
> 	iommus = <&smmu 0x4c0>, <&smmu 0x4c1>,
> 		 <&smmu 0x4c2>, <&smmu 0x4c3>;
> };
> 
> Signed-off-by: Michal Simek <michal.simek@....com>
> ---
> 
>  Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> index 9b31f864e071..71364c6081ff 100644
> --- a/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> +++ b/Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
> @@ -32,7 +32,7 @@ properties:
>      maxItems: 1
>  
>    iommus:
> -    maxItems: 1
> +    maxItems: 4
>  
>    power-domains:
>      maxItems: 1

Is this a bug fix ? If yes, what about adding Fixes & Cc: stable tags ?