ASoC: dapm: Ensure bypass paths are suspended and resumed
Since bypass paths aren't part of DAPM streams and we may not have any
DAPM streams there may not be anything that triggers a DAPM sync for
them. Mark all input and output widgets as dirty and then sync to do so
at the end of suspend and resume.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index b95d1fb..ad65459 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -609,6 +609,10 @@
SND_SOC_DAPM_STREAM_SUSPEND);
}
+ /* Recheck all analogue paths too */
+ dapm_mark_io_dirty(&card->dapm);
+ snd_soc_dapm_sync(&card->dapm);
+
/* suspend all CODECs */
list_for_each_entry(codec, &card->codec_dev_list, card_list) {
/* If there are paths active then the CODEC will be held with
@@ -756,6 +760,10 @@
/* userspace can access us now we are back as we were before */
snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
+
+ /* Recheck all analogue paths too */
+ dapm_mark_io_dirty(&card->dapm);
+ snd_soc_dapm_sync(&card->dapm);
}
/* powers up audio subsystem after a suspend */
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index dd7c49f..f7999e9 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -141,6 +141,28 @@
}
EXPORT_SYMBOL_GPL(dapm_mark_dirty);
+void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm)
+{
+ struct snd_soc_card *card = dapm->card;
+ struct snd_soc_dapm_widget *w;
+
+ mutex_lock(&card->dapm_mutex);
+
+ list_for_each_entry(w, &card->widgets, list) {
+ switch (w->id) {
+ case snd_soc_dapm_input:
+ case snd_soc_dapm_output:
+ dapm_mark_dirty(w, "Rechecking inputs and outputs");
+ break;
+ default:
+ break;
+ }
+ }
+
+ mutex_unlock(&card->dapm_mutex);
+}
+EXPORT_SYMBOL_GPL(dapm_mark_io_dirty);
+
/* create a new dapm widget */
static inline struct snd_soc_dapm_widget *dapm_cnew_widget(
const struct snd_soc_dapm_widget *_widget)