From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michal Bachraty <michal.bachraty@streamunlimited.com>
Subject: Re: [PATCH v7] clk: add si5351 i2c common clock driver
Date: Thu, 11 Apr 2013 09:44:47 +0200
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References: <1365439617-18816-1-git-send-email-sebastian.hesselbarth@gmail.com> <14854575.YAd2OMKOy9@ganymedes> <5165A0FD.5030308@gmail.com>
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To: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Daniel Mack <zonque@gmail.com>, Grant Likely <grant.likely@secretlab.ca>, Rob Herring <rob.herring@calxeda.com>, Rob Landley <rob@landley.net>, Mike Turquette <mturquette@linaro.org>, Stephen Warren <swarren@nvidia.com>, Thierry Reding <thierry.reding@avionic-design.de>, Dom Cobley <popcornmix@gmail.com>, Linus Walleij <linus.walleij@linaro.org>, Arnd Bergmann <arnd@arndb.de>, Andrew Morton <akpm@linux-foundation.org>, Pawel Moll <pawel.moll@arm.com>, Mark Brown <broonie@opensource.wolfsonmicro.com>, Russell King - ARM Linux <linux@arm.linux.org.uk>, Rabeeh Khoury <rabeeh@solid-run.com>, Jean-Francois Moine <moinejf@free.fr>, Lars-Peter Clausen <lars@metafoo.de>, Guenter Roeck <linux@roeck-us.net>, devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
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Hi Sebastian,

On Wednesday, April 10, 2013 19:27:25 Sebastian Hesselbarth wrote:
> Hmm, is there any driver using the clock output? Does it
> clk_prepare_enable() the clock? I tend not to mess with anything the
> bootloader or eeprom config left disabled. It works for me, but here the
> driver will prepare/enable the clock prior use.

For my case, disabled clock outputs in bootloader are correct. I'm working on 
module board with lot of purposes. For one I need to tune frequncy, for other 
not. In some cases I can use  clk_prepare_enable. For now, I need to tune clk, 
so I can't use clk_prepare_enable. Si5351 chip has no problem with enabling 
clock output multiple times, when calling clk_set_rate. So if this feature 
will not be in driver, I need to stay with patch upon driver.

Many thaks for writting driver,

Michal