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

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Date:   Wed, 13 Sep 2023 08:37:55 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "daniel@...ll.ch" <daniel@...ll.ch>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "hverkuil-cisco@...all.nl" <hverkuil-cisco@...all.nl>,
        "airlied@...il.com" <airlied@...il.com>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>
Cc:     "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v5 2/3] dt-binding: mediatek: integrate MDP RDMA to one
 binding

On 13/09/2023 05:04, Moudy Ho (何宗原) wrote:
> On Tue, 2023-09-12 at 10:16 +0200, Krzysztof Kozlowski wrote:
>>  	 
>> External email : Please do not click links or open attachments until
>> you have verified the sender or the content.
>>  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
>>
> Hi Krzysztof,
> 
> Sorry for the inconvenience.
> The property you mentioned was removed on [3/3]. This incorrect
> configuration went unnoticed because I passed the test with the entire
> series.
> It will be recified in the next version.

Please describe any differences (lost properties etc) in commit msg with
some explanation.

Best regards,
Krzysztof