linux-kernel - Re: [PATCH V2 1/2] dt-bindings: gpio: Add a header file for Amlogic C3 SoCs

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Date:   Tue, 11 Jul 2023 19:05:49 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Huqiang Qin <huqiang.qin@...ogic.com>
Cc:     linus.walleij@...aro.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        neil.armstrong@...aro.org, khilman@...libre.com,
        jbrunet@...libre.com, martin.blumenstingl@...glemail.com,
        brgl@...ev.pl, andy@...nel.org, linux-gpio@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 1/2] dt-bindings: gpio: Add a header file for Amlogic
 C3 SoCs

On Tue, Jul 11, 2023 at 10:55:40AM +0800, Huqiang Qin wrote:
> Hi Conor,
> 
> On 2023/7/11 0:38, Conor Dooley wrote:
> >> diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
> >> index 99080c9eaac3..e019b6aa6ca3 100644
> >> --- a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
> >> +++ b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
> >> @@ -17,6 +17,7 @@ properties:
> >>      enum:
> >>        - amlogic,meson-a1-periphs-pinctrl
> >>        - amlogic,meson-s4-periphs-pinctrl
> >> +      - amlogic,c3-periphs-pinctrl
> > Alphanumerical order here perhaps?
> 
> Okay
> 
> > 
> >> +++ b/include/dt-bindings/gpio/amlogic-c3-gpio.h
> >> @@ -0,0 +1,72 @@
> >> +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
> > Any reason to deviate from the usual license terms for bindings, which is
> > "GPL-2.0-only OR BSD-2-Clause"?
> 
> I initially used the license commonly used by Amlogic (reference: meson-s4-gpio.h):
> ```
> /* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> ```
> 
> But when I checked the patch, some warnings appeared:
> ```
> WARNING: DT binding headers should be licensed (GPL-2.0-only OR .*)
> #37: FILE: include/dt-bindings/gpio/amlogic-c3-gpio.h:1:
> +/* SPDX-License-Identifier: (GPL-2.0+ OR MIT) */
> ```
> So I followed the prompts and changed the license.
> 
> Can I ignore this warning and use the (GPL-2.0+ OR MIT) license?

If the tools are happy then I suppose you are okay.. I'll leave that to
Rob or Krzysztof, but if you have a reason for diverging that seems fine
to me.

Thanks,
Conor.

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