linux-kernel - Re: [PATCH 06/10] ASoC: wm8940: Convert to snd_soc_cache

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Message-ID: <4E8DAEB4.9090601@cam.ac.uk>
Date:	Thu, 06 Oct 2011 14:35:48 +0100
From:	Jonathan Cameron <jic23@....ac.uk>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	Axel Lin <axel.lin@...il.com>, linux-kernel@...r.kernel.org,
	Ian Lartey <ian@...nsource.wolfsonmicro.com>,
	Dimitris Papastamos <dp@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, alsa-devel@...a-project.org
Subject: Re: [PATCH 06/10] ASoC: wm8940: Convert to snd_soc_cache_sync

On 10/06/11 14:18, Mark Brown wrote:
> On Thu, Oct 06, 2011 at 12:28:41PM +0100, Jonathan Cameron wrote:
>> On 10/06/11 07:17, Axel Lin wrote:
> 
>>> +static int wm8940_volatile_register(struct snd_soc_codec *codec,
>>> +				    unsigned int reg)
>>> +{
>>> +	switch (reg) {
>>> +	case WM8940_SOFTRESET:
>>> +		return 1;
>>> +	default:
>>> +		return 0;
>>> +	}
>>> +}
> 
>> I guess this makes sense from point of view of keeping things inline with
>> more complex drivers.  Otherwise I'd expect to see something like:
>> {
>> 	return !!(reg == WM894_SOFTRESET);
>> }
> 
> On the other hand we actually want people to be able to read the code
> (though the !! there which is the major complication isn't actually
> doing anything...).
Fair point.
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