Commit 1c325f77 authored Sep 04, 2014 by Lars-Peter Clausen Committed by Mark Brown Sep 04, 2014

ASoC: Shutdown DAPM contexts when removing a card



Currently when a ASoC sound card is unregistered we leave the individual
components in their current state, just call the remove() callback and leave
it to the drivers to do the proper shutdown/cleanup.

This patch introduces a call to snd_soc_dapm_shutdown() when removing the
card.  This will make sure that all DAPM widgets are properly powered down
and all DAPM contexts are put at the SND_SOC_BIAS_OFF level. This will
ensure that all components are properly powered down when the card is
removed.

Since a lot of drivers manually go to SND_SOC_BIAS_OFF in their remove
callback this will also allow us to remove a bit of duplicated code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

parent 01e0df66

sound/soc/soc-core.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -3812,6 +3812,7 @@ int snd_soc_unregister_card(struct snd_soc_card *card)
		{
		if (card->instantiated) {
		card->instantiated = false;
		snd_soc_dapm_shutdown(card);
		soc_cleanup_card_resources(card);
		}
		dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);

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