From: Liam Girdwood <lg@opensource.wolfsonmicro.com>
To: Nobin Mathew <nobin.mathew@gmail.com>
Cc: Takashi Iwai <tiwai@suse.de>, alsa-devel@alsa-project.org
Subject: Re: Power management state flow in ALSA
Date: Fri, 01 Jun 2007 13:18:21 +0100 [thread overview]
Message-ID: <1180700301.26032.50.camel@localhost.localdomain> (raw)
In-Reply-To: <s5hy7j6fuhd.wl%tiwai@suse.de>
Nobin,
Can you try the following patch :-
http://opensource.wolfsonmicro.com/cgi-bin/gitweb/gitweb.cgi?p=linux-2.6-asoc;a=commit;h=6c868238a5e083dca4d74439a7fd467b5c7726b0
This will notify pcm's of their suspend state.
Liam
On Wed, 2007-05-30 at 12:58 +0200, Takashi Iwai wrote:
> At Wed, 30 May 2007 16:06:54 +0530,
> Nobin Mathew wrote:
> >
> > I am writing an ASoC driver, where i can place these calls
> >
> > snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
> > snd_pcm_suspend_all(chip->pcm[i]);
> >
> > and snd_power_change_state(card, SNDRV_CTL_POWER_D0);
> >
> >
> > In soc-core.c ?
>
> I suppose so.
> In soc_suspend() and soc_resume(), you can get the card instance from
> codec->card, at least.
>
> But currently SoC doesn't keep the PCM instances, so it cannot be
> implemented as it is... Liam, any plan or known issue regarding this?
>
>
> Takashi
next prev parent reply other threads:[~2007-06-01 12:18 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-30 6:22 Power management state flow in ALSA Nobin Mathew
2007-05-30 9:55 ` Takashi Iwai
2007-05-30 10:06 ` Nobin Mathew
2007-05-30 10:26 ` Takashi Iwai
2007-05-30 10:36 ` Nobin Mathew
2007-05-30 10:39 ` Takashi Iwai
2007-05-30 10:46 ` Nobin Mathew
2007-05-30 10:58 ` Takashi Iwai
2007-05-30 11:10 ` Liam Girdwood
2007-06-01 12:18 ` Liam Girdwood [this message]
[not found] ` <8d6898730706032158i341b70d3j32c9566532395d18@mail.gmail.com>
2007-06-06 8:07 ` Nobin Mathew
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