This means that rather than adding the board specific DAPM widgets to a random CODEC DAPM context they can be added to the card itself which is a bit cleaner. Previously there only was one DAPM context and it was tied to the single supported CODEC.
Signed-off-by: Mark Brown broonie@opensource.wolfsonmicro.com --- include/sound/soc.h | 3 +++ sound/soc/soc-core.c | 13 +++++++++++++ 2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h index 120fd19..24a35d6 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -730,6 +730,9 @@ struct snd_soc_card { struct list_head paths; struct list_head dapm_list;
+ /* Generic DAPM context for the card */ + struct snd_soc_dapm_context dapm; + #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_card_root; struct dentry *debugfs_pop_time; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 64befac..24bfc3ff 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1837,6 +1837,11 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card) } card->snd_card->dev = card->dev;
+ card->dapm.bias_level = SND_SOC_BIAS_OFF; + card->dapm.dev = card->dev; + card->dapm.card = card; + list_add(&card->dapm.list, &card->dapm_list); + #ifdef CONFIG_PM_SLEEP /* deferred resume work */ INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); @@ -1867,6 +1872,14 @@ static void snd_soc_instantiate_card(struct snd_soc_card *card) } }
+ card->dapm.debugfs_dapm = debugfs_create_dir("dapm", + card->debugfs_card_root); + if (!card->dapm.debugfs_dapm) + printk(KERN_WARNING + "Failed to create card DAPM debugfs directory\n"); + + snd_soc_dapm_debugfs_init(&card->dapm); + snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname), "%s", card->name); snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),