Date: Sun, 12 Oct 2008 18:07:13 +0200
From: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
To: Pierre Ossman <drzeus-list@drzeus.cx>
Cc: kernel@avr32linux.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/7] atmel-mci: support multiple mmc slots
Message-ID: <20081012180713.049aa297@hskinnemo-gx745.norway.atmel.com>
In-Reply-To: <20081012175853.0d75b78f@mjolnir.drzeus.cx>
References: <1223223690-2637-1-git-send-email-haavard.skinnemoen@atmel.com>
	<1223223690-2637-2-git-send-email-haavard.skinnemoen@atmel.com>
	<1223223690-2637-3-git-send-email-haavard.skinnemoen@atmel.com>
	<1223223690-2637-4-git-send-email-haavard.skinnemoen@atmel.com>
	<1223223690-2637-5-git-send-email-haavard.skinnemoen@atmel.com>
	<20081012103958.7905356b@mjolnir.drzeus.cx>
	<20081012151344.3f81ac75@hskinnemo-gx745.norway.atmel.com>
	<20081012175853.0d75b78f@mjolnir.drzeus.cx>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 8bit
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 836
Lines: 20

Pierre Ossman <drzeus-list@drzeus.cx> wrote:
> > It can happen if the controller is hooked up to a fast bus and fOD is
> > slow for whatever reason. And if it does, clkdiv will wrap around and
> > end up at a rate much faster than requested, so saturating it at the
> > maximum divider is the safe thing to do.
> >   
> 
> Isn't this calculated for f_min though so that the MMC core will never
> request such a frequency?

Hmm...yes, you're probably right. Still, I think it's a nice safety net
if someone manages to mess up f_min or starts doing more aggressive
frequency scaling.

Haavard
--
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/