Re: [PATCH] ASoC: tlv320dac33: Power down digital parts, when not needed

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]


On Friday 10 December 2010 12:44:49 ext Mark Brown wrote:
> On Fri, Dec 10, 2010 at 12:14:49PM +0200, Peter Ujfalusi wrote:
> > If the following scenarion has been followed:
> > 1. Enable analog bypass
> > amixer sset 'Analog Left Bypass' on
> > amixer sset 'Analog Right Bypass' on
> 
> Acked-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> 
> It'd have been nice to have mentioned how the digital gets turned back
> on in the changelog!

Currently the codec is going to be reset at every stream start, since it can get 
confused, if I fail to do that, especially, when the FIFO is enabled.
In case, when the bypass was not enabled the codec anyway will hit BIAS_OFF, so 
next time, when we power it on, it is going through the power-up sequence.

I do have some plans to actually remove the need for this reset requirement at 
every stream start (it adds considerable amount of latency, and other unwanted 
side effects).

I can resend the patch with updated changelog.

-- 
Péter
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel



[ALSA User]     [Linux Audio Users]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

Add to Google Powered by Linux