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Message-ID: <ebfa6770-059c-4a9b-980a-3447ea9cf404@linaro.org>
Date:   Mon, 16 Oct 2023 18:21:23 +0200
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Subject: Re: [PATCH v7 15/16] dt-bindings: display: mediatek: split: add
 compatible for MT8195
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To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>,
        Moudy Ho <moudy.ho@mediatek.com>,
        Chun-Kuang Hu <chunkuang.hu@kernel.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Mauro Carvalho Chehab <mchehab@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc:     dri-devel@lists.freedesktop.org,
        linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-media@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org
References: <20231012084037.19376-1-moudy.ho@mediatek.com>
 <20231012084037.19376-16-moudy.ho@mediatek.com>
 <e58ecc95-5133-4542-8178-338583bca2ab@linaro.org>
 <b1f42bab-7670-c099-8c7a-882f7268b358@collabora.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <b1f42bab-7670-c099-8c7a-882f7268b358@collabora.com>
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Precedence: bulk

On 16/10/2023 10:01, AngeloGioacchino Del Regno wrote:
> Il 13/10/23 08:52, Krzysztof Kozlowski ha scritto:
>> On 12/10/2023 10:40, Moudy Ho wrote:
>>> Add compatible string and GCE property for MT8195 SPLIT, of
>>> which is operated by MDP3.
>>>
>>> Signed-off-by: Moudy Ho <moudy.ho@mediatek.com>
>>
>>
>>> +allOf:
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            const: mediatek,mt8195-mdp3-split
>>> +
>>> +    then:
>>> +      required:
>>> +        - mediatek,gce-client-reg
>>
>> else:
>>    mediatek,gce-client-reg: false
>>
>>
> 
> Technically, all of the display components do support GCE, using it is
> a matter of preference, so disallowing gce-client-reg on anything that
> is not mt8195-mdp3-split is *technically* wrong, as much as not having
> that from the beginning was also technically wrong... :-)
> 
> P.S.: The driver for the display split component doesn't use GCE yet,
> only mdp3 for now, but again, it's the driver - while the HW is actually
> capable of using that

Hm, fine with me then.

Best regards,
Krzysztof