linux-kernel - Re: [PATCH 5/5] ARM: dts: imx6qdl: Rename USB hub node name

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Message-ID: <82ee2be2-366e-40b2-ac95-e755443032be@kernel.org>
Date: Tue, 13 Aug 2024 11:44:28 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Alexander Stein <alexander.stein@...tq-group.com>,
 Markus Niebel <Markus.Niebel@...tq-group.com>, Rob Herring
 <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>, Fabio Estevam <festevam@...il.com>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
 devicetree@...r.kernel.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux@...tq-group.com
Subject: Re: [PATCH 5/5] ARM: dts: imx6qdl: Rename USB hub node name

On 13/08/2024 11:27, Alexander Stein wrote:
> Am Dienstag, 13. August 2024, 11:20:08 CEST schrieb Krzysztof Kozlowski:
>> On 12/08/2024 16:34, Markus Niebel wrote:
>>> From: Alexander Stein <alexander.stein@...tq-group.com>
>>>
>>> According to microchip,usb2514.yaml the node name shall be usb-hub.
>>
>> That's not true. The schema does not say anything like this. Old name is
>> correct. NAK.
> 
> So, is the schema incorrect? There is the dtbs_check warning:
> arch/arm/boot/dts/nxp/imx/imx6q-mba6b.dtb: hub@1: $nodename:0: 'hub@1' does not match '^usb(@.*)?'
>         from schema $id: http://devicetree.org/schemas/usb/microchip,usb2514.yaml#

If you have a warning, shorten it and paste it so this will be obvious.
If you look at several bindings, the hub is widely used name. I think
the schema is not correct here - I do not see any properties from
usb.yaml being used here (for usb2514). What's more, if you compare
usb2514 with any other on-board HUB representations (because that's the
only point why we have it in bindings, right?), none of them reference
usb(-hcd)?.yaml.

These are not USB controllers, IMO.

Best regards,
Krzysztof