On Friday 30 April 2010 11:41:00 ext Mark Brown wrote: > On Fri, Apr 30, 2010 at 10:31:55AM +0300, Peter Ujfalusi wrote: > > When the codec is in STANDBY we can actually turn it off. > > When the codec is off, than the associated regulator can be also turned > > off (if the number of users on the regulator is 0). > > You can just set idle_bias_off in the CODEC and then the core will push > you down into _BIAS_OFF. Good idea. Needed some code movement, but works fine. Thanks. > > > There are few scenarios, which has to be taken care:: > > 1. Analog bypass caused BIAS_STANDBY -> BIAS_ON > > > > We need to power on the codec, and do the chip init, but we does not > > need to execute the playback related configuration > > Moving the playback related configuration into events on the DAC widgets > (or probably a supply connected to the DAC widgets) seems like a good > move for a lot of these scenarios? The core will then take care of > ensuring that the startup sequence for the playback is called for you > and the states can do what they're supposed to more directly. This is not working. Actually it works, if we come from BIAS_OFF, but... If I restart the playback fast (within asoc timeout for BIAS change), than the widget will not get event (since it is still powered). This means that I can not do the needed reconfiguration for the tlv320dac33 -> audio breaks. I will keep the current logic, but move it a bit with the idle_bias_off change. > _______________________________________________ > Alsa-devel mailing list > Alsa-devel@xxxxxxxxxxxxxxxx > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel -- Péter _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
