Message-ID: <4A71F598.100@mnementh.co.uk>
Date: Thu, 30 Jul 2009 20:33:44 +0100
From: Ian Molton <ian@mnementh.co.uk>
User-Agent: Mozilla-Thunderbird 2.0.0.19 (X11/20090103)
MIME-Version: 1.0
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
CC: pHilipp Zabel <philipp.zabel@gmail.com>, Paul Mundt <lethal@linux-sh.org>,
       Magnus Damm <magnus.damm@gmail.com>,
       Mark Brown <broonie@opensource.wolfsonmicro.com>,
       linux-kernel@vger.kernel.org, Pierre Ossman <drzeus@drzeus.cx>,
       Magnus Damm <damm@opensource.se>
Subject: Re: MMC: Make the configuration memory resource optional
References: <Pine.LNX.4.64.0907170842050.4731@axis700.grange>  <aec7e5c30907281948s2a0dcd0csd3e580251d6c4f5a@mail.gmail.com>  <20090729115817.GA12223@rakim.wolfsonmicro.main>  <aec7e5c30907290527w39a89895n285e932459e6c953@mail.gmail.com>  <20090729124233.GA12802@rakim.wolfsonmicro.main>  <aec7e5c30907290551y77edc6d7qb7b3d787215c2b4@mail.gmail.com>  <4A704777.70001@mnementh.co.uk>  <aec7e5c30907290608i43a80fe1xe4ef0f3847855709@mail.gmail.com>  <4A7053E8.8050303@mnementh.co.uk>  <20090729201702.GA28202@linux-sh.org> <74d0deb30907291355n39df7db0v1d7afc93917adc14@mail.gmail.com> <4A716F1C.2050805@mnementh.co.uk> <Pine.LNX.4.64.0907301246330.4462@axis700.grange>
In-Reply-To: <Pine.LNX.4.64.0907301246330.4462@axis700.grange>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 751
Lines: 19

Ok, I took another look just now (aa few minutes break)

One slight thorn is that the TMIO MFDs have a 1:1 card clock mode where 
the divisor is disabled. Annoyingly this is set up by a bit in the CNF 
IO space

How do non-TMIO (eg. superH) tmio cells select this mode? or do they 
simply not have a 1:1 ratio available to them?

(Im trying to decide whether to have a 'set 1:1' callback, or a 'set 
clock' callback. The latter is thorny because it'd involve the MFD core 
also mapping the CTL area.

-Ian
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/