linux-kernel - Re: [PATCH 1/5] dt-bindings: connector: Add displayport connector for hotplug notify

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Message-ID: <3a27b7f6-a614-49b4-85dd-5ecba1fbbf70@rock-chips.com>
Date: Wed, 16 Jul 2025 09:13:19 +0800
From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
 Chaoyi Chen <kernel@...kyi.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Vinod Koul <vkoul@...nel.org>,
 Kishon Vijay Abraham I <kishon@...nel.org>, Heiko Stuebner
 <heiko@...ech.de>, Sandy Huang <hjc@...k-chips.com>,
 Andy Yan <andy.yan@...k-chips.com>,
 Yubing Zhang <yubing.zhang@...k-chips.com>,
 Frank Wang <frank.wang@...k-chips.com>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Amit Sunil Dhamne <amitsd@...gle.com>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Dragan Simic <dsimic@...jaro.org>, Johan Jonker <jbx6244@...il.com>,
 Diederik de Haas <didi.debian@...ow.org>, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 1/5] dt-bindings: connector: Add displayport connector for
 hotplug notify

On 2025/7/15 20:04, Dmitry Baryshkov wrote:

> On Tue, Jul 15, 2025 at 07:24:52PM +0800, Chaoyi Chen wrote:
>> From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
>>
>> The USB Type-C DisplayPort alternate mode driver will find
>> "displayport" property for DRM hotplug event notify[0].
>>
>> [0]: https://lore.kernel.org/all/20210817215201.795062-9-hdegoede@redhat.com/
>>
>> Signed-off-by: Chaoyi Chen <chaoyi.chen@...k-chips.com>
>> ---
>>   .../devicetree/bindings/connector/usb-connector.yaml          | 4 ++++
>>   1 file changed, 4 insertions(+)
>>
> Please see how it was done on other platforms. For example, qualcomm
> (both tcpm and pmic-glink) use port / endpoint to link to the DP PHY /
> DP controller.
Thank you! I'll check these out.