[PATCH 2/4] ASoC: add ep93xx AC97 audio driver

[Mika Westerberg]

On Mon, Oct 11, 2010 at 10:47:18AM +0100, Mark Brown wrote:
> On Sun, Oct 10, 2010 at 01:54:10PM +0300, Mika Westerberg wrote:
> 
> > +	mutex_lock(&info->lock);
> > +
> > +	INIT_COMPLETION(info->done);
> 
> Do you really need to do this on every single register I/O?

Sorry, didn't quite understand you. Do you mean that should I take
the mutex and init the completion or wait for an interrupt?

> 
> > +	ep93xx_ac97_write_reg(info, AC97S1DATA, reg);
> > +	ep93xx_ac97_write_reg(info, AC97IM, AC97_SLOT2RXVALID);
> > +	if (!wait_for_completion_timeout(&info->done, AC97_TIMEOUT)) {
> > +		dev_warn(info->dev, "timeout reading register %x\n", reg);
> > +		mutex_unlock(&info->lock);
> > +		return -1;
> 
> Return a real error code.

Ok, will do.

> 
> > +module_init(ep93xx_ac97_init);
> > +module_exit(ep93xx_ac97_exit);
> 
> Put these next to the functions they're referencing.

Ok.

> 
> > +#ifndef _EP93XX_SND_SOC_AC97_H
> > +#define _EP93XX_SND_SOC_AC97_H
> > +
> > +extern struct snd_soc_dai ep93xx_ac97_dai;
> > +
> > +#endif /* _EP93XX_SND_SOC_AC97_H */
> 
> This is not needed with current ASoC.  Are you sure you've tested with
> current code?  You should always submit against the development version
> of the subsystem you're working with for any new drivers - for ASoC
> Jassi already pointed you at the tree, and you can in the general case
> also look at -next.

Yeah, sorry about that. I had the impression that using the latest
mainline would be right thing to do :( I will base the next version
against that tree pointed by Jassi.

Thanks for the comments,
MW