linux-kernel - Re: [PATCH] ASoC: Fix wm8753 register cache size and initialization

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Message-ID: <20090703093250.GA29130@rakim.wolfsonmicro.main>
Date:	Fri, 3 Jul 2009 10:32:50 +0100
From:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
To:	Lars-Peter Clausen <lars@...afoo.de>
Cc:	alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ASoC: Fix wm8753 register cache size and initialization

On Fri, Jul 03, 2009 at 12:46:08AM +0200, Lars-Peter Clausen wrote:

> The register cache size is of by one. There are 63 registers in use but the
> register cache size has only space for 62.

Only 62 of the registers are cached - please see the register cache
access code.

> Furthermore the codec's reg_cache_size is of by another one. Since the wm8753
> register cache uses one-based indexing we have to add one to its size.

I'm not 100% sure what you mean here but I suspect you're misreading the
register cache access code?

> Register cache initialization only copied the first sizeof(void*) elements leaving the others
> uninitialized. Fix it by using the size of the reg cache template.

This fix is good (but should use wm8753->reg_cache for the size).  I'll
fix this.
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