linux-kernel - Re: [PATCH v3 7/9] ARM: add Armada 1500 and Sony NSZ-GS7 device tree files

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Date:	Fri, 8 Nov 2013 12:10:27 -0800
From:	Olof Johansson <olof@...om.net>
To:	Jason Cooper <jason@...edaemon.net>
Cc:	Kumar Gala <galak@...eaurora.org>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Mark Rutland <mark.rutland@....com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Stephen Warren <swarren@...dotorg.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 7/9] ARM: add Armada 1500 and Sony NSZ-GS7 device tree files

On Fri, Nov 8, 2013 at 11:30 AM, Jason Cooper <jason@...edaemon.net> wrote:
> On Fri, Nov 08, 2013 at 11:14:07AM -0800, Olof Johansson wrote:
>> On Fri, Nov 8, 2013 at 10:24 AM, Jason Cooper <jason@...edaemon.net> wrote:
>> > On Fri, Nov 08, 2013 at 12:06:26PM -0600, Kumar Gala wrote:
>> >>
>> >> On Nov 8, 2013, at 10:57 AM, Jason Cooper wrote:
>> >>
>> >> > On Fri, Nov 08, 2013 at 10:13:19AM -0600, Kumar Gala wrote:
>> >> >> On Nov 5, 2013, at 8:28 AM, Sebastian Hesselbarth wrote:
>> >> > ...
>> >> >>> .../devicetree/bindings/arm/marvell,berlin.txt     |   24 +++
>> >> >>> arch/arm/boot/dts/Makefile                         |    2 +
>> >> >>> arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts         |   29 +++
>> >> >>> arch/arm/boot/dts/berlin2.dtsi                     |  227 ++++++++++++++++++++
>> >> >>> 4 files changed, 282 insertions(+)
>> >> >>> create mode 100644 Documentation/devicetree/bindings/arm/marvell,berlin.txt
>> >> >>> create mode 100644 arch/arm/boot/dts/berlin2-sony-nsz-gs7.dts
>> >> >>> create mode 100644 arch/arm/boot/dts/berlin2.dtsi
>> >> >>
>> >> >> Haven't we been trying to go away from non-prefixed dts/dtsi?
>> >> >
>> >> > hmmm, this is the first I've heard of that.  Although, your proposal
>> >> > (in another thread) makes more sense now.  :)
>> >> >
>> >> >> So should these be something like marvell-berlin2-...
>> >> >
>> >> > I don't recall this being brought up at the summit, nor in Grant's
>> >> > report.  I do need to give it a more careful read this weekend, though.
>> >> > Perhaps I missed something.
>> >>
>> >> This was based on review comments Olof gave when we pushed some .dts
>> >> files for MSM/APQ Qualcomm Technologies soc/boards.
>> >
>> > As Andrew Lunn mentioned to me earlier, we should consider the fact that
>> > the dts file names are being used by Debian's flash-kernel.  Oh no!
>> > Another ABI! ;-)
>>
>> Yes, the names are mostly stable. ST-Ericsson renamed their dts files
>> and it caused some pain, some build environments have them hardcoded,
>> etc.
>>
>> Still, it is a good idea to start adding new ones using family or
>> vendor prefixes, so they are easier to group. Please keep that in mind
>> on new ones too, Jason -- I don't think I've discussed with you in the
>> past. :-)
>
> Nope, I definitely missed that if you did ;-)  Will do in the future.
>
> Perhaps now is the time to consider separating the dts filename from the
> dtb filename?  I'm warming up to my idea of globalscale,mirabox.dtb...

Having a "dtb-install" make target that sets those up as softlinks
could be a good idea, at least. I'm not sold on using them as
filenames myself though.


-Olof
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