Re: [PATCH 01/12] dt-bindings: phy: Document MT8195 and MT8196 DisplayPort PHYs

From: "Rob Herring (Arm)" <robh@kernel.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Cc: dri-devel@lists.freedesktop.org, conor+dt@kernel.org,
	 p.zabel@pengutronix.de, linux-mediatek@lists.infradead.org,
	 vkoul@kernel.org, chunfeng.yun@mediatek.com,
	linux-phy@lists.infradead.org,  matthias.bgg@gmail.com,
	linux-arm-kernel@lists.infradead.org,  kernel@collabora.com,
	linux-kernel@vger.kernel.org,  neil.armstrong@linaro.org,
	justin.yeh@mediatek.com, krzk+dt@kernel.org,
	 devicetree@vger.kernel.org, chunkuang.hu@kernel.org
Subject: Re: [PATCH 01/12] dt-bindings: phy: Document MT8195 and MT8196 DisplayPort PHYs
Date: Wed, 01 Jul 2026 09:38:50 -0500	[thread overview]
Message-ID: <178291673047.19807.6106947084460440701.robh@kernel.org> (raw)
In-Reply-To: <20260701122008.19509-2-angelogioacchino.delregno@collabora.com>

On Wed, 01 Jul 2026 14:19:57 +0200, AngeloGioacchino Del Regno wrote:
> This adds bindings for the DisplayPort and Embedded DisplayPort
> PHYs found in the MediaTek MT8195 SoC (and variants of) and for
> the Embedded DisplayPort found in the MT8196 SoC (and variants).
> 
> This PHY supports varying impedance calibrations for the various
> signals to reach an optimal EYE signal pattern for any specific
> board(s), especially useful for very high bitrates such as HBR3
> and higher, depending on board design.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  .../bindings/phy/mediatek,mt8195-dp-phy.yaml  | 77 +++++++++++++++++++
>  1 file changed, 77 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/mediatek,mt8195-dp-phy.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/phy/mediatek,mt8195-dp-phy.example.dtb: phy@1c500000 (mediatek,mt8195-dp-phy): reg: [[0, 475004928], [0, 8192]] is too long
	from schema $id: http://devicetree.org/schemas/phy/mediatek,mt8195-dp-phy.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.kernel.org/project/devicetree/patch/20260701122008.19509-2-angelogioacchino.delregno@collabora.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.

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