[alsa-devel] [PATCH 0/1] ASoC: TWL4030: Headset ramp down fix

[Anuj Aggarwal]

Moreover, I am hearing a sine-tonish kind of sound, always in the beginning.
It lasts only for less than a sec but is very prominent and occurs always.

Has anyone noticed this too?

Regards,
Anuj

On Mon, May 11, 2009 at 6:27 PM, Arun KS <getarunks at gmail.com> wrote:

> On Mon, May 11, 2009 at 4:44 PM, Peter Ujfalusi
> <peter.ujfalusi at nokia.com> wrote:
> > Hello,
> >
> > The following patch should fix (or at least makes it less intrusive) the
> 'tuck'
> > phenomena on observed on the twl4030 Headset outputs when the codec is
> going
> > to standby mode.
> >
> > I have debugged this with the scope and if we are not waiting RAMP_DELAY
> time,
> > the VMID is cut before it reaching 0, which generates the 'tuck'.
> >
> > Note that I have not removed the control for the RAMP_DELAY
> configuration, the
> > code will use that to calculate the needed delay (also the sysfreq is
> needed,
> > which also stored).
> > However I do think that one should not touch the RAMP_DELAY...
> >
> > It would be nice to hear from you guys, if it solves/softens the 'tuck'.
>
> 'Tuck' still present on omap3evm board.
>
> >
> > ---
> > Peter Ujfalusi (1):
> >  ASoC: TWL4030: Wait RAMP_DELAY on headsetl_event: POST_PMD
> >
> >  sound/soc/codecs/twl4030.c |   20 ++++++++++++++++++++
> >  1 files changed, 20 insertions(+), 0 deletions(-)
> >
> >
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-- 
Best Regards,
Anuj Aggarwal