linux-kernel - Re: [PATCH] dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Add mode-switch

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Message-ID: <176004125928.3290331.16433221750974859532.robh@kernel.org>
Date: Thu, 9 Oct 2025 15:21:00 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Neil Armstrong <neil.armstrong@...aro.org>
Cc: Kishon Vijay Abraham I <kishon@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Vinod Koul <vkoul@...nel.org>, linux-phy@...ts.infradead.org,
	linux-arm-msm@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH] dt-bindings: phy: qcom,sc8280xp-qmp-usb43dp: Add
 mode-switch


On Mon, 06 Oct 2025 15:51:53 +0200, Neil Armstrong wrote:
> The QMP USB3/DP Combo PHY can work in 3 modes:
> - DisplayPort Only
> - USB3 Only
> - USB3 + DisplayPort Combo mode
> 
> In order to switch between those modes, the PHY needs to receive
> Type-C events, allow marking to the phy with the mode-switch
> property in order to allow the PHY to receive Type-C events.
> 
> Referencing usb-switch.yaml lookkied like as a simpler way to allow
> the mode-switch property instead of duplicating the property
> definition but it causes some issues with the ports definitions.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> ---
> Depends on:
> [1] https://lore.kernel.org/all/20251006-topic-sm8x50-fix-qmp-usb43dp-usb-switch-v2-1-3249e511013b@linaro.org/
> ---
>  .../devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml       | 5 +++++
>  1 file changed, 5 insertions(+)
> 

Acked-by: Rob Herring (Arm) <robh@...nel.org>