[alsa-devel] [PATCH 0/5] Enabling ASoC paths over suspend

Peter Ujfalusi peter.ujfalusi at nokia.com
Mon May 10 08:19:18 CEST 2010

On Sunday 09 May 2010 15:07:41 ext Mark Brown wrote:
> The following patch series implements support for keeping some paths in
> the audio codec enabled while the system is suspended.  This is
> primarily intended for mobile phones, where the GSM modem is normally
> capable of supporting a voice call with no intervention from the CPU so
> power can be saved by suspending the Linux system.  This is done by
> allowing DAPM nodes to be marked as ignoring suspend.  Any audio paths
> between two widgets set up like this at suspend time will be kept active
> and the CODEC device will not be suspended.
> The existing testing is very light (especially for digital paths), the
> intention is to do more of that get this merged into Takashi's tree
> early next week.
>   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6.git
> suspend-enable
> Mark Brown (5):
>       ASoC: Remove unneeded suspend bias managment from CODEC drivers
>       ASoC: Remove unused DAPM suspend flag
>       ASoC: Refactor DAPM suspend handling
>       ASoC: Support leaving paths enabled over system suspend
>       ASoC: Allow active paths from the GSM modem while the GTA02 is
> suspended

I have not tested the actual purpose of this series, but at least it is not 
breaking the twl4030, and tlv320dac33 codec driver normal usage.

Tested-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>

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