linux-kernel - Re: [PATCH v4 1/4] dt-bindings: interrupt-controller: Convert MSI controller to json-schema

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Date:   Tue, 31 Aug 2021 16:04:05 -0500
From:   Rob Herring <robh@...nel.org>
To:     Mark Kettenis <mark.kettenis@...all.nl>
Cc:     devicetree@...r.kernel.org, alyssa@...enzweig.io,
        kettenis@...nbsd.org, tglx@...utronix.de, maz@...nel.org,
        marcan@...can.st, bhelgaas@...gle.com, nsaenz@...nel.org,
        f.fainelli@...il.com, bcm-kernel-feedback-list@...adcom.com,
        jim2101024@...il.com, daire.mcnamara@...rochip.com,
        nsaenzjulienne@...e.de, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org,
        linux-rpi-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/4] dt-bindings: interrupt-controller: Convert MSI
 controller to json-schema

On Fri, Aug 27, 2021 at 09:15:11PM +0200, Mark Kettenis wrote:
> > From: Mark Kettenis <mark.kettenis@...all.nl>
> > Date: Fri, 27 Aug 2021 19:15:26 +0200
> > 
> > From: Mark Kettenis <kettenis@...nbsd.org>
> > 
> > Split the MSI controller bindings from the MSI binding document
> > into DT schema format using json-schema.
> > 
> > Signed-off-by: Mark Kettenis <kettenis@...nbsd.org>
> > ---
> >  .../interrupt-controller/msi-controller.yaml  | 34 +++++++++++++++++++
> >  .../bindings/pci/brcm,stb-pcie.yaml           |  1 +
> >  .../bindings/pci/microchip,pcie-host.yaml     |  1 +
> >  3 files changed, 36 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
> > 
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml b/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
> > new file mode 100644
> > index 000000000000..5ed6cd46e2e0
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/msi-controller.yaml
> > @@ -0,0 +1,34 @@
> > +# SPDX-License-Identifier: BSD-2-Clause
> 
> Noticed that checkpatch complains that the preferred license for new
> binding schemas is (GPL-2.0-only OR BSD-2-Clause) so I'll fix that in
> the next version.

Yes, but the text you copied is default GPL-2.0, so you need the author's 
permission to add BSD license. However, as Mark Rutland wrote all of 
msi.txt for Arm Ltd, I can tell you dual licensing this is fine. Maybe 
it's so little to fall under fair use anyways, but IANAL.

Rob