linux-kernel - RE: [PATCH v2] arm64: dts: ls1028a: Add USB dt nodes

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Date:   Wed, 8 May 2019 02:20:30 +0000
From:   Ran Wang <ran.wang_1@....com>
To:     Rob Herring <robh@...nel.org>
CC:     Shawn Guo <shawnguo@...nel.org>, Leo Li <leoyang.li@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v2] arm64: dts: ls1028a: Add USB dt nodes

Hi Rob,

On Wednesday, May 08, 2019 00:40, Rob Herring wrote:
> 
> On Tue, May 7, 2019 at 3:48 AM Ran Wang <ran.wang_1@....com> wrote:
> >
> > Hi Rob,
> >
> > On Thursday, May 02, 2019 07:54 Rob Herring wrote:
> > >
> > > On Fri, Apr 26, 2019 at 05:54:26AM +0000, Ran Wang wrote:
> > > > This patch adds USB dt nodes for LS1028A.
> > > >
> > > > Signed-off-by: Ran Wang <ran.wang_1@....com>
> > > > ---
> > > > Changes in v2:
> > > >   - Rename node from usb3@... to usb@... to meet DTSpec
> > > >
> > > >  arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi |   20
> > > ++++++++++++++++++++
> > > >  1 files changed, 20 insertions(+), 0 deletions(-)
> > > >
> > > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > index 8dd3501..188cfb8 100644
> > > > --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
> > > > @@ -144,6 +144,26 @@
> > > >                     clocks = <&sysclk>;
> > > >             };
> > > >
> > > > +           usb0:usb@...0000 {
> > >                      ^ space needed
> >
> > Yes, will update this in next version.
> >
> > > > +                   compatible= "snps,dwc3";
> > >
> > > Needs an SoC specific compatible.
> >
> > Do you mean change compatible to "snps,dwc3", "fsl,ls1028a-dwc3" ?
> 
> Well, that's the wrong order, but yes.

OK, will update this.
 
> > As I know, so far there is no SoC specific programming for this IP, so
> > do you think it's still necessary to add it?
> 
> Yes. All the bugs and quirks are discovered already?

Yes, so far I don't receive any SoC specific defect report, I think it's fine.
 Will work out next version patch, thanks for your time.

Regards,
Ran