linux-kernel - RE: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller node

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Date:   Tue, 17 May 2022 15:32:15 +0000
From:   Neal Liu <neal_liu@...eedtech.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        Felipe Balbi <balbi@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Li Yang <leoyang.li@....com>
CC:     "linux-aspeed@...ts.ozlabs.org" <linux-aspeed@...ts.ozlabs.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>
Subject: RE: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller
 node

> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: Tuesday, May 17, 2022 11:26 PM
> To: Neal Liu <neal_liu@...eedtech.com>; Greg Kroah-Hartman
> <gregkh@...uxfoundation.org>; Rob Herring <robh+dt@...nel.org>; Krzysztof
> Kozlowski <krzysztof.kozlowski+dt@...aro.org>; Joel Stanley <joel@....id.au>;
> Andrew Jeffery <andrew@...id.au>; Felipe Balbi <balbi@...nel.org>; Sumit
> Semwal <sumit.semwal@...aro.org>; Christian König
> <christian.koenig@....com>; Geert Uytterhoeven <geert@...ux-m68k.org>;
> Li Yang <leoyang.li@....com>
> Cc: linux-aspeed@...ts.ozlabs.org; linux-usb@...r.kernel.org;
> devicetree@...r.kernel.org; linux-arm-kernel@...ts.infradead.org;
> linux-kernel@...r.kernel.org; linux-media@...r.kernel.org;
> dri-devel@...ts.freedesktop.org; linaro-mm-sig@...ts.linaro.org
> Subject: Re: [PATCH v2 2/3] ARM: dts: aspeed: Add USB2.0 device controller
> node
> 
> On 17/05/2022 17:21, Neal Liu wrote:
> >>>>>
> >>>>> +		udc: udc@...a2000 {
> >>>>
> >>>> The same as DTS in bindings - generic node name, please.
> >>>>
> >>>
> >>> Is it possible to use "udc: usb-udc@...a2000" to distinguish it between
> "vhub:
> >> usb-vhub@...a0000"?
> >>
> >> Possible yes :), but not recommended and not wanted. Nodes should be
> >> generic and prefixes are added only if there is no unit address. You
> >> can though use some more descriptive label.
> >>
> > "udc: usb@...a2000" is okay for you?
> 
> Yes, it's perfect.

Great ! I'll update it for next patch.
Thanks for your suggestion.
> 
> 
> Best regards,
> Krzysztof