linux-kernel - Re: [PATCH v5 2/3] dt-binding: mediatek: integrate MDP RDMA to one binding

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Message-ID: <83b3f2eb-84e3-2daa-c63c-14b6792a1db5@linaro.org>
Date:   Tue, 12 Sep 2023 10:16:14 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Moudy Ho <moudy.ho@...iatek.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Cc:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        dri-devel@...ts.freedesktop.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v5 2/3] dt-binding: mediatek: integrate MDP RDMA to one
 binding

On 12/09/2023 09:56, Moudy Ho wrote:
> Due to the same hardware design, MDP RDMA needs to
> be integrated into the same binding.
> 

Please use subject prefixes matching the subsystem. You can get them for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching.

This applies to entire patchset. It is not dt-binding, but dt-bindings.

> Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
> ---
>  .../display/mediatek/mediatek,mdp-rdma.yaml   | 88 -------------------
>  .../bindings/media/mediatek,mdp3-rdma.yaml    |  5 +-
>  2 files changed, 3 insertions(+), 90 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
> deleted file mode 100644
> index dd12e2ff685c..000000000000
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,mdp-rdma.yaml
> +++ /dev/null
> @@ -1,88 +0,0 @@
> -# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> -%YAML 1.2
> ----
> -$id: http://devicetree.org/schemas/display/mediatek/mediatek,mdp-rdma.yaml#
> -$schema: http://devicetree.org/meta-schemas/core.yaml#
> -
> -title: MediaTek MDP RDMA
> -
> -maintainers:
> -  - Chun-Kuang Hu <chunkuang.hu@...nel.org>
> -  - Philipp Zabel <p.zabel@...gutronix.de>
> -
> -description:
> -  The MediaTek MDP RDMA stands for Read Direct Memory Access.
> -  It provides real time data to the back-end panel driver, such as DSI,
> -  DPI and DP_INTF.
> -  It contains one line buffer to store the sufficient pixel data.
> -  RDMA device node must be siblings to the central MMSYS_CONFIG node.
> -  For a description of the MMSYS_CONFIG binding, see
> -  Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml for details.
> -
> -properties:
> -  compatible:
> -    const: mediatek,mt8195-vdo1-rdma
> -
> -  reg:
> -    maxItems: 1
> -
> -  interrupts:
> -    maxItems: 1
> -
> -  power-domains:
> -    maxItems: 1
> -
> -  clocks:
> -    items:
> -      - description: RDMA Clock

This is different and you did not explain it in commit msg.

Another difference - mboxes. Looks like you did not test your DTS...

Best regards,
Krzysztof