linux-kernel - Re: [PATCH 04/11] pinctrl: mvebu: add pinctrl driver for Armada 370

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Date:	Tue, 21 Aug 2012 09:12:41 +0200
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
CC:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Lior Amsalem <alior@...vell.com>, Andrew Lunn <andrew@...n.ch>,
	Russell King <linux@....linux.org.uk>,
	linux-doc@...r.kernel.org,
	Linus Walleij <linus.walleij@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Rob Landley <rob@...dley.net>,
	devicetree-discuss@...ts.ozlabs.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 04/11] pinctrl: mvebu: add pinctrl driver for Armada 370

On 08/20/2012 07:36 PM, Thomas Petazzoni wrote:
> Le Mon, 20 Aug 2012 18:48:32 +0200,
> Sebastian Hesselbarth <sebastian.hesselbarth@...il.com> a écrit :
> 
>> this is really difficult here ;) I thought I could just add PINCTRL_DOVE
>> to MACH_DOVE inside ARCH_MVEBU, PINCTRL_KIRKWOOD to MACH_KIRKWOOD, aso.
>> But there is a common MACH_ARMADA_370_XP for both 370 and XP obviously.
>>
>> If it is ok for you I will add both PINCTRL_ stubs to the Kconfig and
>> you work it out if you ever have two distinct MACHs? Or it could remain
>> selectable in pinctrl/Kconfig but that will then be different with the
>> other stubs.
> 
> In order to keep the consistency with other SoC families, maybe we can
> split the 370 and XP options in two separate MACH_ARMADA_370 and
> MACH_ARMADA_XP. So, in the ideal world, once all Marvell EBU SoCs are
> converted to DT+mach-mvebu, we should have:
> 
>  *) arch/arm/Kconfig defines MACH_MVEBU
> 
>  *) arch/arm/mach-mvebu/Kconfig defines MACH_KIRKWOOD, MACH_DOVE,
>     MACH_MX78X00, MACH_ARMADA_370, MACH_ARMADA_XP, MACH_ORION5X
> 
> Then, an user is free to build a single kernel image that supports all,
> or a selection of the supported Marvell EBU SoCs.

I agree with Thomas

> 
> Thomas
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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