From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Daniel Mack <daniel@caiaq.org>
Cc: alsa-devel@alsa-project.org
Subject: Re: [PATCH] asoc tlv320aic33: skip usage of PLL in some cases
Date: Fri, 18 Apr 2008 11:08:59 +0100 [thread overview]
Message-ID: <20080418100858.GA19457@rakim.wolfsonmicro.main> (raw)
In-Reply-To: <20080418093821.GA23651@buzzloop.caiaq.de>
On Fri, Apr 18, 2008 at 11:38:21AM +0200, Daniel Mack wrote:
> On Fri, Apr 18, 2008 at 11:58:49AM +0300, Jarkko Nikula wrote:
> > > AIC3X_SAMPLE_RATE_SEL_REG defaults to 0 which is what I want in this
> > > case. Thus, I don't have to write it.
> > Are you sure this is a general case?
> Well, the reset default is 0 (as stated on page 44) and set_hw_params()
> is the only location where this value is written. So if it's never
> written with a different value, it should always be set to its default,
> no?
Not all systems use a static SYSCLK rate - sometimes systems will select
the rate based on their current usage. If the system has previously had
to configure it then the register won't be at the default value any more.
next prev parent reply other threads:[~2008-04-18 10:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-17 19:12 [PATCH] asoc tlv320aic33: skip usage of PLL in some cases Daniel Mack
2008-04-17 19:25 ` Daniel Mack
2008-04-18 7:59 ` Jarkko Nikula
2008-04-18 8:13 ` Daniel Mack
2008-04-18 8:58 ` Jarkko Nikula
2008-04-18 9:38 ` Daniel Mack
2008-04-18 10:08 ` Mark Brown [this message]
2008-04-18 10:35 ` Daniel Mack
2008-04-18 10:47 ` Jarkko Nikula
2008-04-18 11:41 ` Daniel Mack
2008-04-18 13:47 ` Jarkko Nikula
2008-04-18 14:03 ` Daniel Mack
2008-04-18 19:37 ` Jarkko Nikula
2008-04-19 0:50 ` Daniel Mack
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