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From: Mark Brown <broonie@kernel.org>
To: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Linux-ALSA <alsa-devel@alsa-project.org>,
	"Sridharan, Ranjani" <ranjani.sridharan@intel.com>,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Subject: Re: [alsa-devel] [PATCH v2 2/7] ASoC: soc-core: care .ignore_suspend for Component suspend
Date: Wed, 18 Dec 2019 17:14:15 +0000	[thread overview]
Message-ID: <20191218171415.GJ3219@sirena.org.uk> (raw)
In-Reply-To: <bc4cef12-0095-e2af-5c91-63b06d815b8c@linux.intel.com>


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On Wed, Dec 18, 2019 at 08:54:27AM -0600, Pierre-Louis Bossart wrote:

> Even for dai links, it's not clear to me what .ignore_suspend means.

It means exactly what it says, don't do anything on suspend.

> For Intel machine drivers, the .ignore_suspend flag is used for DMIC links
> which may be used in S0ix/D0ix states. I don't believe this works if there
> are multiple target states, e.g. you would probably want to leave the link
> active in S0ix, but suspend it in S3?

> I think the current .ignore_suspend settings only work with the assumption
> that applications will close all capture streams before going to S3.

These numbered suspend states are a platform specific concept, other
systems will typically just suspend or not suspend.  It sounds like this
feature does not map onto your systems.

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  reply	other threads:[~2019-12-18 17:32 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-18  2:44 [alsa-devel] [PATCH 0/7 v2] ASoC: soc-core cleanup step8 Kuninori Morimoto
2019-12-18  2:45 ` [alsa-devel] [PATCH v2 1/7] ASoC: soc-core: remove snd_soc_rtdcom_list Kuninori Morimoto
2019-12-18  3:31   ` Sridharan, Ranjani
2019-12-18  3:53     ` Kuninori Morimoto
2019-12-18  2:45 ` [alsa-devel] [PATCH v2 2/7] ASoC: soc-core: care .ignore_suspend for Component suspend Kuninori Morimoto
2019-12-18  3:36   ` Sridharan, Ranjani
2019-12-18  3:59     ` Kuninori Morimoto
2019-12-18 14:54       ` Pierre-Louis Bossart
2019-12-18 17:14         ` Mark Brown [this message]
2019-12-18 17:48           ` Pierre-Louis Bossart
2019-12-18 18:06             ` Mark Brown
2019-12-18  2:45 ` [alsa-devel] [PATCH v2 3/7] ASoC: soc-core: remove duplicate pinctrl operation when suspend Kuninori Morimoto
2019-12-18  2:46 ` [alsa-devel] [PATCH v2 4/7] ASoC: soc-core: do pinctrl_pm_select_xxx() as component Kuninori Morimoto
2019-12-18  2:46 ` [alsa-devel] [PATCH v2 5/7] ASoC: soc-core: add snd_soc_close_delayed_work() Kuninori Morimoto
2019-12-18  2:47 ` [alsa-devel] [PATCH v2 6/7] ASoC: soc-dapm: add snd_soc_dapm_stream_stop() Kuninori Morimoto
2019-12-18  2:47 ` [alsa-devel] [PATCH v2 7/7] ASoC: use snd_soc_dapm_stream_stop() for SND_SOC_DAPM_STREAM_STOP Kuninori Morimoto
2019-12-18  6:06 ` [alsa-devel] [PATCH 0/7 v2] ASoC: soc-core cleanup step8 Ranjani Sridharan
2019-12-19  5:57 ` Kuninori Morimoto

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