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Message-ID: <9e6c432a-9bed-474c-afa9-fd6ada8bb8f8@rock-chips.com>
Date: Wed, 16 Jul 2025 09:18:55 +0800
From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Chaoyi Chen <kernel@...kyi.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>,
 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>
Cc: 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 2/5] dt-bindings: phy: rockchip: rk3399-typec-phy: Support
 mode/orientation switch

Hi Krzysztof,

On 2025/7/15 19:34, Krzysztof Kozlowski wrote:
> On 15/07/2025 13:24, Chaoyi Chen wrote:
>> From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
>>
>> Add support for Type-C orientation and altmode switch.
>> The Type-C controller can be specified to handling switching.
> Please describe the hardware in details. Above sentences don't help me
> to understand this.

I will add more description in v2.


>
>
>> Signed-off-by: Chaoyi Chen <chaoyi.chen@...k-chips.com>
>> ---
>>   .../bindings/phy/rockchip,rk3399-typec-phy.yaml    | 14 ++++++++++++++
>>   1 file changed, 14 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml b/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml
>> index 91c011f68cd0..a885c6893a90 100644
>> --- a/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml
>> +++ b/Documentation/devicetree/bindings/phy/rockchip,rk3399-typec-phy.yaml
>> @@ -43,6 +43,20 @@ properties:
>>       description:
>>         Phandle to the syscon managing the "general register files" (GRF).
>>   
>> +  orientation-switch:
>> +    description: Flag the port as possible handler of orientation switching
>> +    type: boolean
>> +
>> +  mode-switch:
>> +    description: Flag the port as possible handler of altmode switching
>> +    type: boolean
>> +
>> +  port:
>> +    $ref: /schemas/graph.yaml#/properties/port
>> +    description:
>> +      A port node to link the PHY to a TypeC controller for the purpose of
>> +      handling orientation switching.
>
> You are using usb-switch.yaml properties in phy node, which raises
> questions whether this is actually complete. It might be, but commit msg
> is so vague that I have doubts.
>
> Also, why only one port?
>
> Or wait... you already have ports! two of them. This needs to stop, why
> are you adding more?

Oh, I will try to reuse them. Will fix in v2.


>
> Best regards,
> Krzysztof
>
>

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