linux-kernel - Re: [PATCH v6 01/14] dt-bindings: media: mediatek,vcodec: Remove dma-ranges property

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Date:   Mon, 3 Apr 2023 09:58:23 -0400
From:   Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>
To:     Yong Wu <yong.wu@...iatek.com>
Cc:     Joerg Roedel <joro@...tes.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Hans Verkuil <hverkuil@...all.nl>, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        iommu@...ts.linux.dev,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        mingyuan.ma@...iatek.com, yf.wang@...iatek.com,
        jianjiao.zeng@...iatek.com, Yunfei Dong <yunfei.dong@...iatek.com>,
        kyrie wu <kyrie.wu@...iatek.corp-partner.google.com>,
        chengci.xu@...iatek.com, youlin.pei@...iatek.com,
        anan.sun@...iatek.com, Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Rob Herring <robh@...nel.org>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: Re: [PATCH v6 01/14] dt-bindings: media: mediatek,vcodec: Remove
 dma-ranges property

On Mon, Apr 03, 2023 at 05:13:24PM +0800, Yong Wu wrote:
[..]
> --- a/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-subdev-decoder.yaml
> @@ -76,11 +76,6 @@ properties:
>        The node of system control processor (SCP), using
>        the remoteproc & rpmsg framework.
>  
> -  dma-ranges:
> -    maxItems: 1
> -    description: |
> -      Describes the physical address space of IOMMU maps to memory.
> -
>    "#address-cells":
>      const: 2
>  
> @@ -203,7 +198,6 @@ required:
>    - reg
>    - iommus
>    - mediatek,scp
> -  - dma-ranges
>    - ranges
>  
>  if:
> @@ -236,7 +230,6 @@ examples:
>              compatible = "mediatek,mt8192-vcodec-dec";
>              mediatek,scp = <&scp>;
>              iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> -            dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
>              #address-cells = <2>;
>              #size-cells = <2>;
>              ranges = <0 0 0 0x16000000 0 0x40000>;

Hi,

this change was also done in another patch [1], and it is already queued for the
media tree [2], so you'll need to remove this part of your patch in order to
avoid conflicts.

[1] https://lore.kernel.org/all/20230303013842.23259-3-allen-kh.cheng@mediatek.com/
[2] https://lore.kernel.org/all/98c48690-631d-1086-9b7c-004c61cc8dbb@xs4all.nl/#t

Thanks,
Nícolas