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Message-ID: <0e2453b9-cb7d-fdd9-2eb5-145972b23061@foss.st.com>
Date:   Wed, 10 May 2023 18:51:11 +0200
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Subject: Re: [PATCH] dt-bindings: rcc: stm32: Fix STM32MP13 include file
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From:   Patrick DELAUNAY <patrick.delaunay@foss.st.com>
To:     Rob Herring <robh@kernel.org>, <gabriel.fernandez@foss.st.com>
CC:     Alexandre TORGUE <alexandre.torgue@foss.st.com>,
        Michael Turquette <mturquette@baylibre.com>,
        Stephen Boyd <sboyd@kernel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
        Maxime Coquelin <mcoquelin.stm32@gmail.com>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        <gabriel.fernandez@st.com>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-stm32@st-md-mailman.stormreply.com>,
        Loic PALLARDY <loic.pallardy@st.com>
References: <20230407201526.1.I417093ddcea282be479f10a37147d1935a9050b7@changeid>
 <20230412151404.GA2372294-robh@kernel.org>
 <7884b0d8-199c-4415-4113-ddce4b640508@foss.st.com>
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On 5/10/23 16:22, Patrick DELAUNAY wrote:
> Hi,
>
> On 4/12/23 17:14, Rob Herring wrote:
>> On Fri, Apr 07, 2023 at 08:15:33PM +0200, Patrick Delaunay wrote:
>>> Minor cosmetic change, aligned with files in U-Boot:
>>> - change obsolete SPDX id : GPL-2.0+
>>> - use correct address gabriel.fernandez@foss.st.com
>>> - remove extra space
>> Make the subject reflect the purpose: 'Sync with u-boot copy'
>
>
> Ok
>
>
>>
>>> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
>>> ---
>>>
>>>   include/dt-bindings/clock/stm32mp13-clks.h   | 6 +++---
>>>   include/dt-bindings/reset/stm32mp13-resets.h | 4 ++--
>>>   2 files changed, 5 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/include/dt-bindings/clock/stm32mp13-clks.h 
>>> b/include/dt-bindings/clock/stm32mp13-clks.h
>>> index 02befd25edce..da4cb7567430 100644
>>> --- a/include/dt-bindings/clock/stm32mp13-clks.h
>>> +++ b/include/dt-bindings/clock/stm32mp13-clks.h
>>> @@ -1,7 +1,7 @@
>>> -/* SPDX-License-Identifier: GPL-2.0+ or BSD-3-Clause */
>>> +/* SPDX-License-Identifier: GPL-2.0-or-later or BSD-3-Clause */
>>>   /*
>>>    * Copyright (C) STMicroelectronics 2020 - All Rights Reserved
>>> - * Author: Gabriel Fernandez <gabriel.fernandez@st.com> for 
>>> STMicroelectronics.
>>> + * Author: Gabriel Fernandez <gabriel.fernandez@foss.st.com> for 
>>> STMicroelectronics.
>>>    */
>>>     #ifndef _DT_BINDINGS_STM32MP13_CLKS_H_
>>> @@ -64,7 +64,7 @@
>>>   #define CK_MCO1        38
>>>   #define CK_MCO2        39
>>>   -/*  IP clocks */
>>> +/* IP clocks */
>>>   #define SYSCFG        40
>>>   #define VREF        41
>>>   #define DTS        42
>>> diff --git a/include/dt-bindings/reset/stm32mp13-resets.h 
>>> b/include/dt-bindings/reset/stm32mp13-resets.h
>>> index 934864e90da6..1b83a01de8f0 100644
>>> --- a/include/dt-bindings/reset/stm32mp13-resets.h
>>> +++ b/include/dt-bindings/reset/stm32mp13-resets.h
>>> @@ -1,7 +1,7 @@
>>> -/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
>>> +/* SPDX-License-Identifier: GPL-2.0-or-later or BSD-3-Clause */
>> Really, the Linux copy came first, so you should use its license. Your
>> company's lawyers are good with GPLv3 and then v4?
>
>
> We have a long debate on the licenses, and particular for device tree,
>
> and as conclusion we are using for STM32MP SoCs:
>
> - For code (in Linux kernel driver) => GPL-2.0-only
>
> - For device tree and binding .h files; the dual licenses => 
> GPL-2.0-or-later OR BSD-3-Clause
>
>
> It is because the modifications in device tree files and binding file 
> s can be applied on
>
> other SW with using any licenses:
>
>    - GPL2 (Linux /u-Boot)
>
>    - BSD (TF-A/OP-TEE)
>
>    - GPL3/GPL4 license (any other SW component)
>
>
> Just indicate GPL-2.0-or-later in the device tree or binding files 
> won't contaminate
>
> all the projects with GPL3/GPL4 license if it only use this DT, or 
> binding files.
>
>
> NB: it is already the case for other files used by STM32MP SoC, for 
> example :
>
> ./include/dt-bindings/pinctrl/stm32-pinfunc.h:
>     /* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
>
>
> and we have no reason to use a different license for the 2 files for 
> STM32MP13 RCC binding:
>
>   include/dt-bindings/reset/stm32mp13-resets.h
>   include/dt-bindings/clock/stm32mp13-clks.h
>
> This patch corrects a mistake in the initial commit for RCC binding 
> up-streamed
>
> by Gabriel in parallel in U-Boot and Linux repositories; this 
> inconsistency in the license
>
> was corrected only when the same patch was pushed in U-Boot.
>
>
> PS: using the GPL2-only is not a issue for U-Boot but perhaps for 
> other user of device tree in other components,
>       So if it is a blocking issue for Linux I can change it to 
> "GPL-2.0-only" in Linux and U-Boot
>
>
> Patrick 


Hi,


after test and to avoid the check-patch issue on next branch introduced 
by commit a04bb4c24a48

("checkpatch: introduce proper bindings license check"),

I will use the same license for the 2 files "GPL-2.0-only" as recommended in

https://lore.kernel.org/all/CAL_Jsq+-YJsBO+LuPJ=ZQ=eb-monrwzuCppvReH+af7hYZzNaQ@mail.gmail.com

=> "Also, GPL-2.0-or-later is neither desired nor encouraged."

And I will align the U-Boot files later....


Patrick