[alsa-devel] [PATCH 1/3] ASoC: TWL4030: Enable voice filters for voice sidetone

Mark Brown broonie at opensource.wolfsonmicro.com
Fri Jun 19 11:58:08 CEST 2009

On Fri, Jun 19, 2009 at 03:23:41AM -0500, Lopez Cruz, Misael wrote:
> Digital voice loopback (sidetone) requires voice filters
> to be enabled: VTXL, VTXR, VRX.

Is it possible to handle this by inserting DAPM widgets for these
filters into the bypass paths and letting DAPM power them up?  I'm also
wondering if with the new bias level management stuff which keeps the
codec in BIAS_ON while any DAPM widgets are powered some of the bypass
mode stuff can be removed or simplified?

I'm OK with the change if Peter acks it, I've not got detailed knowledge
of the TWL4030.

More information about the Alsa-devel mailing list