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From: Yann Droneaud <ydroneaud-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org>
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: ydroneaud-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org
Subject: Device Tree Blob (DTB) licence
Date: Tue, 05 May 2015 12:05:15 +0200	[thread overview]
Message-ID: <1430820315.19516.26.camel@opteya.com> (raw)

Hi,

I believe Device Tree Blob (.dtb file) built from kernel's Device Tree 
Sources (.dts, which #include .dtsi, which #include .h) using Device 
Tree Compiler (dtc) are covered by GNU General Public Licence v2 
(GPLv2), but cannot find any reference.

As most .dtsi in arch/arm/boot/dts/ are covered by GPLv2, and,
as most .h in include/dt-bindings/ are also covered by GPLv2,
the source code is likely covered by GPLv2.

Then this source code is translated in a different language (flattened 
device tree), so the resulting translation is also likely covered by 
GPLv2.

So, when I'm proposed to download a .dtb file from a random vendor,
can I require to get the associated source code ?

Anyway, for a .dtb file generated from kernel sources, it's rather 
painful to look after all .dts, .dtsi, .h, to find what kind of 
licences are applicables, as some are covered by BSD, dual licensed 
(any combination of X11, MIT, BSD, GPLv2).

Regards.

-- 
Yann Droneaud
OPTEYA


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             reply	other threads:[~2015-05-05 10:05 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-05 10:05 Yann Droneaud [this message]
2015-05-05 16:41 ` Device Tree Blob (DTB) licence Rob Herring
2015-05-22 10:05   ` Yann Droneaud
     [not found]     ` <1432289148.5304.58.camel-RlY5vtjFyJ3QT0dZR+AlfA@public.gmane.org>
2015-05-22 16:26       ` Rob Herring
2015-05-28 12:31         ` Enrico Weigelt, metux IT consult
2015-05-22 19:27     ` Yann Droneaud
2015-05-25  7:14       ` Rob Landley
     [not found]         ` <CAOS_Y6Q37ps+VEnzUZ_uwX++qrRm9Hgx45Q_pmiZSLSNjmKwZg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-25 20:04           ` Willy Tarreau
2015-05-28 12:32           ` Enrico Weigelt, metux IT consult
     [not found]             ` <55670AD4.8020705-d/C+FbuhHiA@public.gmane.org>
2015-05-28 13:34               ` Russell King - ARM Linux
     [not found]                 ` <20150528133429.GD2067-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org>
2015-05-28 16:52                   ` Enrico Weigelt, metux IT consult
     [not found]                     ` <556747E4.6070403-d/C+FbuhHiA@public.gmane.org>
2015-05-29  6:47                       ` Willy Tarreau
     [not found]                         ` <20150529064741.GB25351-K+wRfnb2/UA@public.gmane.org>
2015-05-29 11:35                           ` Enrico Weigelt, metux IT consult
     [not found]                             ` <55684F07.7050402-d/C+FbuhHiA@public.gmane.org>
2015-05-29 22:16                               ` David Lang
2015-05-30 15:28                                 ` Geert Uytterhoeven
     [not found]                                 ` <alpine.DEB.2.02.1505291512000.4429-UEhY+ZBZOcqqLGM74eQ/YA@public.gmane.org>
2015-06-01 13:12                                   ` One Thousand Gnomes
2015-06-01 15:19                                     ` Warner Losh
2015-05-29  3:31             ` Rob Landley
     [not found]               ` <CAOS_Y6QXHdWfi9qkRmw=mCn0mqha5-NrzumBMqJ61_YRndypLA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2015-05-29 15:10                 ` Enrico Weigelt, metux IT consult
     [not found]                   ` <55688182.3010606-d/C+FbuhHiA@public.gmane.org>
2015-05-29 22:21                     ` David Lang
2015-05-30  2:43                   ` Jean-Christophe PLAGNIOL-VILLARD
2015-06-22 12:57           ` Pavel Machek
2015-05-30 19:59     ` Jeroen Hofstee
     [not found]       ` <556A169E.8030909-D9wZyEIIrd305oU+jsXUgg@public.gmane.org>
2015-05-31  7:12         ` Warner Losh
2015-06-01 13:17           ` One Thousand Gnomes

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