[alsa-devel] [PATCH 7/8] ASoC: tlv320aic3x: add initial usage of regulator framework to control avdd_dac

ext-Eero.Nurkkala at nokia.com ext-Eero.Nurkkala at nokia.com
Thu Oct 8 17:44:05 CEST 2009

Mark Brown wrote:

>> Will this ever be revisited =) ? If so, I think there's going to be a
>> jungle in finding the right spots - you need to remember the bypass
>> paths also (bias is not on necessarily).
> The bias is always on when any path through the chip is on, this was
> fixed in either .31 or .30.

Good! Thanks for the update.

>>                                          Also, this is regulator thing
>> is highly platform dependent, not aic3x related really at all, so is
>> this the correct place... Just a thought, dont take it too seriously ;)
> I'm not sure what you mean by this?

You may power the aic3x from a fixed source, or from multiple sources, with
and without any regulator in between. It's up to the HW and HW design.

Moreover, you don't _power off_ (turn the regulator off) the analog voltages
of aic3x; things won't work. So it's not like a switch everybody may use. Or
nothing prevent you from experiencing that...

- EEro

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