Re: [PATCH 1/5] ASoC: DMIC: Adding the OMAP DMIC driver

[Mark Brown <broonie@opensource.wolfsonmicro.com>]

On Wed, Jan 05, 2011 at 07:56:13AM -0600, Lambert, David wrote:
> On Tue, Dec 28, 2010 at 8:18 AM, Mark Brown

> > A comment explaining why we don't actually do anything with the request
> > would be helpful.  Given that we're ignoring the event it'd seem better
> > to just leave it masked and not take the interrupt in the first place.

> Since the IRQ handler isn't really doing anything in this driver,
> would it better
> to just not have one?

Possibly, if the hardware doesn't care.

> >> +             dmic->clk_freq = freq;
> >> +             break;
> >> +     default:
> >> +             dev_err(dai->dev, "clk freq not supported %d\n", freq);
> >> +             ret = -EINVAL;
> >> +             goto err_freq;
> >> +     }

> > Can't you ask the parent clock what rate it's set to?

> Didn't really think there was a need for that on the audio driver.
> There are clock API's available
> to query that already.

That's my point - you're requiring that the user pass in the rate rather
than querying the clock API.