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

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Message-ID: <2621134.Lt9SDvczpP@steina-w>
Date: Tue, 13 Aug 2024 13:02:54 +0200
From: Alexander Stein <alexander.stein@...tq-group.com>
To: 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>, Krzysztof Kozlowski <krzk@...nel.org>
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

Am Dienstag, 13. August 2024, 11:44:28 CEST schrieb Krzysztof Kozlowski:
> 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.

I raised that concern in [1] already, but nobody commented.

Best regards,
Alexander

[1] https://lore.kernel.org/all/3633627.mvXUDI8C0e@steina-w/
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