linux-kernel - Re: [PATCH 1/4] dt-bindings: phy: phy-imx8-pcie: Add binding for the pad modes of imx8 pcie phy

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Date:   Thu, 23 Sep 2021 09:43:38 -0500
From:   Rob Herring <robh@...nel.org>
To:     Richard Zhu <hongxing.zhu@....com>
Cc:     "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        "kishon@...com" <kishon@...com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "galak@...nel.crashing.org" <galak@...nel.crashing.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.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>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH 1/4] dt-bindings: phy: phy-imx8-pcie: Add binding for the
 pad modes of imx8 pcie phy

On Thu, Sep 23, 2021 at 12:56 AM Richard Zhu <hongxing.zhu@....com> wrote:
>
>
> > -----Original Message-----
> > From: Rob Herring <robh@...nel.org>
> > Sent: Thursday, September 23, 2021 3:26 AM
> > To: Richard Zhu <hongxing.zhu@....com>
> > Cc: l.stach@...gutronix.de; kishon@...com; vkoul@...nel.org;
> > galak@...nel.crashing.org; shawnguo@...nel.org;
> > linux-phy@...ts.infradead.org; devicetree@...r.kernel.org;
> > linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> > kernel@...gutronix.de; dl-linux-imx <linux-imx@....com>
> > Subject: Re: [PATCH 1/4] dt-bindings: phy: phy-imx8-pcie: Add binding for the
> > pad modes of imx8 pcie phy
> >
> > On Fri, Sep 17, 2021 at 10:31:00AM +0800, Richard Zhu wrote:
> > > Add binding for reference clock PAD modes of the i.MX8 PCIe PHY.
> > >
> > > Signed-off-by: Richard Zhu <hongxing.zhu@....com>
> > > ---
> > >  include/dt-bindings/phy/phy-imx8-pcie.h | 14 ++++++++++++++
> > >  1 file changed, 14 insertions(+)
> > >  create mode 100644 include/dt-bindings/phy/phy-imx8-pcie.h
> > >
> > > diff --git a/include/dt-bindings/phy/phy-imx8-pcie.h
> > b/include/dt-bindings/phy/phy-imx8-pcie.h
> > > new file mode 100644
> > > index 000000000000..fe198a0cc12c
> > > --- /dev/null
> > > +++ b/include/dt-bindings/phy/phy-imx8-pcie.h
> > > @@ -0,0 +1,14 @@
> > > +/* SPDX-License-Identifier: GPL-2.0 */
> >
> > Perhaps this should match the dts files license...
> >
> Hi Rob:
> What's the means of the "dts files license"?

You include this into .dts files and those are dual licensed. The
licenses should match (or be compatible).

> I'm not clear understand that.
> I found that there are almost similar "/* SPDX-License-Identifier: GPL-2.0 */" license contained in the files of the /include/dt-bindings/phy folder.

Yes, licenses are a mess. But what other files in
include/dt-bindings/phy have don't matter. Where you use this file is
what matters.

Rob