Liam Girdwood wrote: > On Thu, 2010-03-25 at 09:17 +0200, Peter Ujfalusi wrote: >> >> What I did with the TWL4030 codec, is that I have moved the actual >> DAC power control from the DAPM_DAC to different widget (the >> DAPM_DAC is kind of a fake one). This was needed to support the >> digital loopback functionality. >> >> So if you reorder the DAPM widgets (making sure that the switch >> order still OK), than I think you can treat one of the paths as >> normal playback path (fake DAPM_DAC -> mixer (have the DAC power bit >> handled here) -> ...). Than you might consider of adding the rest of >> the paths as DAPM_INPUT, and connect them to the mixer (which after >> the fake DAC). >> So you kind of have digital loopback from those to the analog domain. >> > > This approach currently works well on the twl4030. However, > you may want > to consider using SND_SOC_DAPM_AIF_IN() for your input paths > here. e.g. > > AIF_IN -> MIXER -> DAC -> rest of codec I see now, this is exactly what I was looking for. I will give it a try then. Thanks. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
