ASoC: dapm: Mark endpoints instead of IO widgets dirty during suspend/resume

The state of endpoint widgets is affected by that card's power state.
Endpoint widgets that do no have the ignore_suspend flag set will be
considered inactive during suspend. So they have to be re-checked and marked
dirty after the card's power state changes. Currently the input and output
widgets are marked dirty instead, this works most of the time since
typically a path from one endpoint to another will go via a input or output
widget. But marking the endpoints dirty is technically more correct and will
also work for odd corner cases.

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

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index e7ebeb7..43ca165 100644 (file)
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -435,7 +435,7 @@ void snd_soc_dapm_auto_nc_pins(struct snd_soc_card *card);
 unsigned int dapm_kcontrol_get_value(const struct snd_kcontrol *kcontrol);
 
 /* Mostly internal - should not normally be used */
-void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm);
+void dapm_mark_endpoints_dirty(struct snd_soc_card *card);
 
 /* dapm path query */
 int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4c8f8a2..443be00 100644 (file)
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -629,8 +629,8 @@ int snd_soc_suspend(struct device *dev)
                                          SND_SOC_DAPM_STREAM_SUSPEND);
        }
 
-       /* Recheck all analogue paths too */
-       dapm_mark_io_dirty(&card->dapm);
+       /* Recheck all endpoints too, their state is affected by suspend */
+       dapm_mark_endpoints_dirty(card);
        snd_soc_dapm_sync(&card->dapm);
 
        /* suspend all CODECs */
@@ -796,8 +796,8 @@ static void soc_resume_deferred(struct work_struct *work)
        /* 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);
+       /* Recheck all endpoints too, their state is affected by suspend */
+       dapm_mark_endpoints_dirty(card);
        snd_soc_dapm_sync(&card->dapm);
 }
 

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index d89be15..ffcda7e 100644 (file)
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -159,27 +159,20 @@ static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason)
        }
 }
 
-void dapm_mark_io_dirty(struct snd_soc_dapm_context *dapm)
+void dapm_mark_endpoints_dirty(struct snd_soc_card *card)
 {
-       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;
-               }
+               if (w->is_sink || w->is_source)
+                       dapm_mark_dirty(w, "Rechecking endpoints");
        }
 
        mutex_unlock(&card->dapm_mutex);
 }
-EXPORT_SYMBOL_GPL(dapm_mark_io_dirty);
+EXPORT_SYMBOL_GPL(dapm_mark_endpoints_dirty);
 
 /* create a new dapm widget */
 static inline struct snd_soc_dapm_widget *dapm_cnew_widget(