linux-kernel - Re: [PATCH v10 02/11] usb: typec: Export all typec device types

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Message-ID: <c73306de-f3a0-42ac-bfed-ef6b52cf4759@rock-chips.com>
Date: Mon, 24 Nov 2025 09:45:57 +0800
From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Chaoyi Chen <kernel@...kyi.com>
Cc: Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
 Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>,
 Peter Chen <hzpeterchen@...il.com>, Luca Ceresoli
 <luca.ceresoli@...tlin.com>, 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>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.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>, Dragan Simic <dsimic@...jaro.org>,
 Johan Jonker <jbx6244@...il.com>, Diederik de Haas <didi.debian@...ow.org>,
 Peter Robinson <pbrobinson@...il.com>, linux-usb@...r.kernel.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 v10 02/11] usb: typec: Export all typec device types

Hi Greg,

On 11/21/2025 10:07 PM, Greg Kroah-Hartman wrote:
> On Thu, Nov 20, 2025 at 10:23:34AM +0800, Chaoyi Chen wrote:
>> From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
>>
>> Export all typec device types for identification.
> I do not understand what this means.  Who is going to use these symbols,
> and for what exactly?
>
> Be specific please.

In patch3, we need to distinguish whether the notifiers in patch1 are triggered by the typec port device or the typec partner device. Therefore, we export the various device types of typec here.

Sorry for the confusion. I will add more information later.

>
> thanks,
>
> greg k-h
>
>
-- 
Best,
Chaoyi