linux-kernel - Re: [PATCH 01/11] pinctrl: mvebu: pinctrl driver core

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Date:	Mon, 20 Aug 2012 16:51:20 +0200
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Jason Cooper <jason@...edaemon.net>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	Lior Amsalem <alior@...vell.com>, Andrew Lunn <andrew@...n.ch>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Ben Dooks <ben.dooks@...ethink.co.uk>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Stephen Warren <swarren@...dotorg.org>
Subject: Re: [PATCH 01/11] pinctrl: mvebu: pinctrl driver core

On 08/20/2012 04:18 PM, Linus Walleij wrote:
>> I'll review the variant types but inside pinctrl-mvebu variant
>> is used as a bit mask to distinguish different variants. Anyway,
>> they should always be the same size.
>
> Aha bitmask, seems you can only have 8 different variants of
> the Marvell's then?

Only 8 different variants of one SoC! Currently, there are 5 for
Kirkwood, none for Dove. I think there are two more Kirkwood's that
never appeared in public, but it is still < 8.

>> Well, I see if I can clarify the description but wrt the datasheet it
>> _should_ be quite obvious.
>
> I mainly worry about being able to read the code and figure out
> what's going on, if the datasheet is vital then pls include some
> link to it or so in the header of the file (but preferrably the code
> should speak for itself).

Ok, I clarify whats meant by mvebu_*_ctrl/ctrl_setting/mode. I am not
that happy with that names either, but honestly pinctrl core already
took all names that I'd have chosen. Therefore, I chose some that do
not interfere with pinctrl core as the meaning is different.

Sebastian
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