[alsa-devel] [PATCH] ASoC: rt5640: change widget sequence for depop

Bard Liao bardliao at realtek.com
Mon Aug 5 05:34:18 CEST 2013

> -----Original Message-----
> From: Stephen Warren [mailto:swarren at wwwdotorg.org]
> Sent: Friday, August 02, 2013 11:54 PM
> To: Bard Liao
> Cc: broonie at kernel.org; lgirdwood at gmail.com; alsa-devel at alsa-project.org;
> Flove; Oder Chiou; swarren at nvidia.com
> Subject: Re: [PATCH] ASoC: rt5640: change widget sequence for depop
> On 08/01/2013 08:38 PM, bardliao at realtek.com wrote:
> > From: Bard Liao <bardliao at realtek.com>
> >
> > Add mute/unmute control in widget event and modify the power on/off
> sequence to avoid pop noise.
> So, this does seem to improve (remove) pop noise on headphones. However, it
> also completely prevents speakers from working. Do you know what the
> problem is there?

I am sorry about that.
I tested it without a physical speaker connected but only checked the reg values.
Now, I have a speaker connected on my T40 board.
I will update the patch in a short time.


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