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From:   Felipe Balbi <balbi@kernel.org>
To:     Serge Semin <Sergey.Semin@baikalelectronics.ru>
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Subject: Re: [PATCH 20/20] arch: dts: Fix DWC USB3 DT nodes name
In-Reply-To: <20201014143720.yny3jco5pkb7dr4b@mobilestation>
References: <20201014101402.18271-1-Sergey.Semin@baikalelectronics.ru>
 <20201014101402.18271-21-Sergey.Semin@baikalelectronics.ru>
 <878sc8lx0e.fsf@kernel.org>
 <20201014143720.yny3jco5pkb7dr4b@mobilestation>
Date:   Thu, 15 Oct 2020 13:15:37 +0300
Message-ID: <875z7blrqu.fsf@kernel.org>
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Serge Semin <Sergey.Semin@baikalelectronics.ru> writes:

> On Wed, Oct 14, 2020 at 05:09:37PM +0300, Felipe Balbi wrote:
>>=20
>> Hi Serge,
>>=20
>> Serge Semin <Sergey.Semin@baikalelectronics.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 U=
SB
>>=20
>
>> DWC3 is not a simple HDC, though.
>
> Yeah, strictly speaking it is equipped with a lot of vendor-specific stuf=
f,
> 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.

=2D-=20
balbi

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