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Message-ID: <875z7blrqu.fsf@kernel.org>
Date:   Thu, 15 Oct 2020 13:15:37 +0300
From:   Felipe Balbi <balbi@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jason Cooper <jason@...edaemon.net>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        BenoƮt Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Patrice Chotard <patrice.chotard@...com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Wei Xu <xuwei5@...ilicon.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Manu Gautam <mgautam@...eaurora.org>,
        Roger Quadros <rogerq@...com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-snps-arc@...ts.infradead.org, linux-mips@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-usb@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 20/20] arch: dts: Fix DWC USB3 DT nodes name

Serge Semin <Sergey.Semin@...kalelectronics.ru> writes:

> On Wed, Oct 14, 2020 at 05:09:37PM +0300, Felipe Balbi wrote:
>> 
>> Hi Serge,
>> 
>> Serge Semin <Sergey.Semin@...kalelectronics.ru> writes:
>> > In accordance with the DWC USB3 bindings the corresponding node name is
>> > suppose to comply with Generic USB HCD DT schema, which requires the USB
>> 
>
>> DWC3 is not a simple HDC, though.
>
> Yeah, strictly speaking it is equipped with a lot of vendor-specific stuff,
> which are tuned by the DWC USB3 driver in the kernel. But after that the
> controller is registered as xhci-hcd device so it's serviced by the xHCI driver,

in Dual-role or host-only builds, that's correct. We can also have
peripheral-only builds (both SW or HW versions) which means xhci isn't
even in the picture.

-- 
balbi

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