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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>
This commit is contained in:
Lars-Peter Clausen 2014-09-04 19:44:05 +02:00 committed by Mark Brown
parent 01e0df6647
commit 1c325f771a
1 changed files with 1 additions and 0 deletions
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1
sound/soc/soc-core.c
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@ -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);