Re: [PATCH 2/2] ASoC: pcm512x: Allow independently overclocking PLL, DAC and DSP

On Sun, Feb 22, 2015 at 12:24:12AM +0000, Peter Rosin wrote:

...but I'm not sure everybody agrees that overclocking games should
be allowed by any and all users?

I don't see why not, ASoC controls are already way beyond end user a lot
of the time.

If you still want me to convert to ALSA controls, what control do you
suggest? SOC_SINGLE_EXT? Or should I use an enumeration, because
mixers tend to present volume controls as a percentage of max, which
will be confusing: You are now at "volume" 75% (of max 40), when the
value is 30. Eeek. But enumerations from 0% to 40% sounds tedious.

I'd just use a single value, it's a UI problem with the mixer and if the
control isn't called "Volume" that shouldn cause the UI to not present
it as a volume.  He said hopefully.

Or possibly a binary control I guess which would have the nice side
effect of hiding from most non-specialist UIs.

And how would you suggest that I name the controls?
"Max Overclock DAC", "Max Overclock DSP" and "Max Overclock PLL"?

Those sound reasonable.

BTW, the only troubles I've had with overclocking "too much" is that it
has stopped working. I have not managed to fry any chip. But that is no
guarantee, of course.

It's vanishingly unlikely that you'll cause physical damage with this
sort of thing, you're much more likely to hit performance and filter
problems than anything else.