linux-kernel - Re: [PATCH 0/7] MIPS: Move device-tree files to a common location

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Message-ID: <53FE328F.5040204@caviumnetworks.com>
Date:	Wed, 27 Aug 2014 12:33:35 -0700
From:	David Daney <ddaney@...iumnetworks.com>
To:	Andrew Bresticker <abrestic@...omium.org>
CC:	Jonas Gorski <jogo@...nwrt.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Olof Johansson <olof@...om.net>,
	Florian Fainelli <f.fainelli@...il.com>,
	Kumar Gala <galak@...eaurora.org>,
	Ralf Baechle <ralf@...ux-mips.org>,
	David Daney <david.daney@...ium.com>,
	Rob Herring <robh+dt@...nel.org>,
	Linux-MIPS <linux-mips@...ux-mips.org>,
	Qais Yousef <qais.yousef@...tec.com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Pawel Moll <pawel.moll@....com>,
	John Crispin <blogic@...nwrt.org>,
	Mark Rutland <mark.rutland@....com>,
	Jayachandran C <jchandra@...adcom.com>,
	Paul Burton <paul.burton@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH 0/7] MIPS: Move device-tree files to a common location

On 08/27/2014 11:30 AM, Andrew Bresticker wrote:
> On Mon, Aug 25, 2014 at 8:17 AM, Jonas Gorski <jogo@...nwrt.org> wrote:
>> On Sat, Aug 23, 2014 at 9:50 PM, Geert Uytterhoeven
>> <geert@...ux-m68k.org> wrote:
>>> On Sat, Aug 23, 2014 at 8:31 AM, Olof Johansson <olof@...om.net> wrote:
>>>>>> arch/arm/boot/dts/<vendor>/
>>>>>>
>>>>>> Is this something we should do for the MIPS and update the other architectures
>>>>>> to follow that scheme?
>>>>>
>>>>> I recall reading that as well and that it would be adopted for ARM64,
>>>>> but that hasn't seemed to have happened.  Perhaps Olof (CC'ed) will no
>>>>> more.
>>>>
>>>> Yeah, I highly recommend having a directory per vendor. We didn't on ARM,
>>>> and the amount of files in that directory is becoming pretty
>>>> insane. Moving to a subdirectory structure later gets messy which is
>>>> why we've been holding off on it.
>>>
>>> It would mean we can change our scripts to operate on "interesting"
>>> DTS files from
>>>
>>>       do-something-with $(git grep -l $vendor, -- arch/arm/boot/dts)
>>>
>>> to
>>>
>>>      do-something-with arch/arm/boot/dts/$vendor/*
>>>
>>> which is easier to type...
>>
>> Btw, do you mean chip-vendor or device-vendor with vendor?
>> Device-vendor could get a bit messy on the source part as the router
>> manufacturers tend to switch them quite often. E.g. d-link used arm,
>> mips and ubi32 chips from marvell, ubicom, broadcom, atheros, realtek
>> and ralink for their dir-615 router, happily switching back and forth.
>> There are 14 known different hardware revisions of it where the chip
>> differed from the previous one.
>
> I'm going to assume it means chip/SoC vendor.  That would result in
> the following structure (I think):
>
> Octeon -> cavium/

To match the state of the art naming we have in other MIPS related 
directories, it should probably be "cavium-octeon/" (See 
arch/mips/cavium-octeon, and arch/mips/include/asm/mach-cavium-octeon)

David Daney
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