linux-kernel - Re: [PATCH v12 2/3] dts: arm64: mt8183: add Mediatek MDP3 nodes

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Message-ID: <7e898858-510a-dae6-2ef4-1cb8b1a42b21@collabora.com>
Date:   Thu, 17 Mar 2022 16:26:29 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Moudy Ho <moudy.ho@...iatek.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Jernej Skrabec <jernej.skrabec@...l.net>
Cc:     Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Rob Landley <rob@...dley.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        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,
        Alexandre Courbot <acourbot@...omium.org>, tfiga@...omium.org,
        drinkcat@...omium.org, pihsun@...omium.org, hsinyi@...gle.com,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        menghui.lin@...iatek.com, sj.huang@...iatek.com,
        allen-kh.cheng@...iatek.com, randy.wu@...iatek.com,
        jason-jh.lin@...iatek.com, roy-cw.yeh@...iatek.com,
        river.cheng@...iatek.com, srv_heupstream@...iatek.com,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v12 2/3] dts: arm64: mt8183: add Mediatek MDP3 nodes

Il 17/03/22 15:56, Moudy Ho ha scritto:
> Add device nodes for Media Data Path 3 (MDP3) modules.
> 
> Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
> ---
>   arch/arm64/boot/dts/mediatek/mt8183.dtsi | 108 ++++++++++++++++++++++-
>   1 file changed, 107 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> index fc6ac2a46324..eaa6dac7768b 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
> @@ -1389,6 +1389,79 @@
>   			mediatek,gce-client-reg = <&gce SUBSYS_1400XXXX 0 0x1000>;
>   		};
>   
> +		mdp3_rdma0: mdp3_rdma0@...01000 {

Hello Moudy,

I know, this is already at v12 and I'm truly sorry for noticing this only now,
but that's a bit critical to solve: you can't use underscores in node names (but
you can do it in phandles).

Example:

mdp3_rdma0: mdp3_rdma0@...01000 <-- THIS IS WRONG

mdp3_rdma0: mdp3-rdma0@...01000 <--- THIS IS OK

of course, that's the same also for mdp3-rsz0@..... and the others.

Please fix this both here and in the yaml bindings in patch 1/3!

Sorry again,
Angelo