linux-kernel - Re: [PATCH] USB: of: filter disabled device node

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Message-ID: <CAD48c-Vp0gJZpBu0BobooWjKBksNJ+CcCTQRw1mzspoO2Zs5yA@mail.gmail.com>
Date: Sat, 22 Nov 2025 19:49:02 +0800
From: jerry xzq <jerry.xzq@...il.com>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org, 
	treapking@...gle.com
Subject: Re: [PATCH] USB: of: filter disabled device node

On Sat, Nov 22, 2025 at 7:32 PM Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Sat, Nov 22, 2025 at 07:25:39PM +0800, Zhengqiao Xia wrote:
> > We should not point the of_node of a USB device to a disabled devicetree
> > node. Otherwise, the interface under this USB device will not be able
> > to register.
>
> Why would a USB device point to a disabled device tree node?  Shouldn't
> the device tree be fixed instead?

According to your suggestion, when a USB device is directly connected
to a USB port,
we should delete the unused USB hub node instead of disabling it?

>
> thanks,
>
> greg k-h

thanks