linux-kernel - Re: [PATCH v5 1/6] dt-bindings: usb: musb: Add support for MediaTek musb controller

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Date:   Mon, 4 Mar 2019 11:42:58 -0600
From:   Rob Herring <robh@...nel.org>
To:     Min Guo <min.guo@...iatek.com>
Cc:     Bin Liu <b-liu@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Rutland <mark.rutland@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Linux USB List <linux-usb@...r.kernel.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Tony Lindgren <tony@...mide.com>,
        Hans de Goede <hdegoede@...hat.com>
Subject: Re: [PATCH v5 1/6] dt-bindings: usb: musb: Add support for MediaTek
 musb controller

On Sun, Feb 24, 2019 at 7:36 PM Min Guo <min.guo@...iatek.com> wrote:
>
> Hi Rob,
> On Fri, 2019-02-22 at 10:49 -0600, Rob Herring wrote:
> > On Tue, Feb 19, 2019 at 03:36:30PM +0800, min.guo@...iatek.com wrote:
> > > From: Min Guo <min.guo@...iatek.com>
> > >
> > > This adds support for MediaTek musb controller in
> > > host, peripheral and otg mode.
> > >
> > > Signed-off-by: Min Guo <min.guo@...iatek.com>
> > > ---
> > > changes in v5:
> > > suggested by Rob:
> > > 1. Modify compatible as
> > > - compatible : should be one of:
> > >                "mediatek,mt-2701"
> > >                ...
> > >                followed by "mediatek,mtk-musb"
> > > 2. Add usb connector child node
> > >
> > > changes in v4:
> > > suggested by Sergei:
> > > 1. String alignment
> > >
> > > changes in v3:
> > > 1. no changes
> > >
> > > changes in v2:
> > > suggested by Bin:
> > > 1. Modify DRC to DRD
> > > suggested by Rob:
> > > 2. Drop the "<soc-model>-musb" in compatible
> > > 3. Remove phy-names
> > > 4. Add space after comma in clock-names
> > > ---
> > >  .../devicetree/bindings/usb/mediatek,musb.txt      | 54 ++++++++++++++++++++++
> > >  1 file changed, 54 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/usb/mediatek,musb.txt
> > >
> > > diff --git a/Documentation/devicetree/bindings/usb/mediatek,musb.txt b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
> > > new file mode 100644
> > > index 0000000..0632e6e
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/usb/mediatek,musb.txt
> > > @@ -0,0 +1,54 @@
> > > +MediaTek musb DRD/OTG controller
> > > +-------------------------------------------
> > > +
> > > +Required properties:
> > > + - compatible      : should be one of:
> > > +                     "mediatek,mt-2701"
> >
> > That looks like a top-level SoC compatible and doesn't match the
> > example.
> "mediatek,mt-2701" is an example, just to describe a specific SOC.
> May I modify compatibel like:
> compatible : should be "mediatek,mtk-musb"

No, you should fix the example adding "mediatek,mtk-musb".

Rob