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ASoC: Introduce 'fixup_controls' card method

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The new method is called just before the card is registered, providing
an opportune time for machine-level drivers to do some final controls
amending: deactivating individual controls or obtaining control
references for later use.

Some controls can be created by DAPM after 'late_probe' has been called,
hence the need for this new method.

Signed-off-by: Martin Povišer <povik+lin@cutebit.org>
Link: https://lore.kernel.org/r/20220606191910.16580-5-povik+lin@cutebit.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Martin Povišer 2022-06-06 21:19:09 +02:00 committed by Mark Brown
parent 142d456204
commit df4d27b19b
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GPG Key ID: 24D68B725D5487D0
4 changed files with 9 additions and 0 deletions
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1
include/sound/soc-card.h
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@ -29,6 +29,7 @@ int snd_soc_card_resume_post(struct snd_soc_card *card);
int snd_soc_card_probe(struct snd_soc_card *card);
int snd_soc_card_late_probe(struct snd_soc_card *card);
void snd_soc_card_fixup_controls(struct snd_soc_card *card);
int snd_soc_card_remove(struct snd_soc_card *card);
int snd_soc_card_set_bias_level(struct snd_soc_card *card,

1
include/sound/soc.h
View File

@ -916,6 +916,7 @@ struct snd_soc_card {
int (*probe)(struct snd_soc_card *card);
int (*late_probe)(struct snd_soc_card *card);
void (*fixup_controls)(struct snd_soc_card *card);
int (*remove)(struct snd_soc_card *card);
/* the pre and post PM functions are used to do any PM work before and

6
sound/soc/soc-card.c
View File

@ -197,6 +197,12 @@ int snd_soc_card_late_probe(struct snd_soc_card *card)
return 0;
}
void snd_soc_card_fixup_controls(struct snd_soc_card *card)
{
if (card->fixup_controls)
card->fixup_controls(card);
}
int snd_soc_card_remove(struct snd_soc_card *card)
{
int ret = 0;

1
sound/soc/soc-core.c
View File

@ -2066,6 +2066,7 @@ static int snd_soc_bind_card(struct snd_soc_card *card)
goto probe_end;
snd_soc_dapm_new_widgets(card);
snd_soc_card_fixup_controls(card);
ret = snd_card_register(card->snd_card);
if (ret < 0) {