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ASoC: Add verbose debugging showing why widgets get marked dirty 

Help diagnose why we're checking widgets by providing some logging when
we first dirty them. This should possibly be a trace point if it's useful
but can be absurdly verbose if enabled, we can always change it later if
desired.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2011-10-04 22:28:08 +01:00
parent fe4fda5d8f
commit 75c1f891b4
1 changed files with 15 additions and 11 deletions
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26
sound/soc/soc-dapm.c
View File

@ -124,10 +124,13 @@ static bool dapm_dirty_widget(struct snd_soc_dapm_widget *w)
return !list_empty(&w->dirty);
}
static void dapm_mark_dirty(struct snd_soc_dapm_widget *w)
static void dapm_mark_dirty(struct snd_soc_dapm_widget *w, const char *reason)
{
if (!dapm_dirty_widget(w))
if (!dapm_dirty_widget(w)) {
dev_vdbg(w->dapm->dev, "Marking %s dirty due to %s\n",
w->name, reason);
list_add_tail(&w->dirty, &w->dapm->card->dapm_dirty);
}
}
/* create a new dapm widget */
@ -1227,7 +1230,7 @@ static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer,
/* If the peer is already in the state we're moving to then we
* won't have an impact on it. */
if (power != peer->power)
dapm_mark_dirty(peer);
dapm_mark_dirty(peer, "peer state change");
}
static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
@ -1624,16 +1627,17 @@ static int dapm_mux_update_power(struct snd_soc_dapm_widget *widget,
/* we now need to match the string in the enum to the path */
if (!(strcmp(path->name, e->texts[mux]))) {
path->connect = 1; /* new connection */
dapm_mark_dirty(path->source);
dapm_mark_dirty(path->source, "mux connection");
} else {
if (path->connect)
dapm_mark_dirty(path->source);
dapm_mark_dirty(path->source,
"mux disconnection");
path->connect = 0; /* old connection must be powered down */
}
}
if (found) {
dapm_mark_dirty(widget);
dapm_mark_dirty(widget, "mux change");
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
}
@ -1660,11 +1664,11 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
/* found, now check type */
found = 1;
path->connect = connect;
dapm_mark_dirty(path->source);
dapm_mark_dirty(path->source, "mixer connection");
}
if (found) {
dapm_mark_dirty(widget);
dapm_mark_dirty(widget, "mixer update");
dapm_power_widgets(widget->dapm, SND_SOC_DAPM_STREAM_NOP);
}
@ -1810,7 +1814,7 @@ static int snd_soc_dapm_set_pin(struct snd_soc_dapm_context *dapm,
w->connected = status;
if (status == 0)
w->force = 0;
dapm_mark_dirty(w);
dapm_mark_dirty(w, "pin configuration");
return 0;
}
@ -2699,7 +2703,7 @@ static void soc_dapm_stream_event(struct snd_soc_dapm_context *dapm,
dev_vdbg(w->dapm->dev, "widget %s\n %s stream %s event %d\n",
w->name, w->sname, stream, event);
if (strstr(w->sname, stream)) {
dapm_mark_dirty(w);
dapm_mark_dirty(w, "stream event");
switch(event) {
case SND_SOC_DAPM_STREAM_START:
w->active = 1;
@ -2789,7 +2793,7 @@ int snd_soc_dapm_force_enable_pin(struct snd_soc_dapm_context *dapm,
dev_dbg(w->dapm->dev, "dapm: force enable pin %s\n", pin);
w->connected = 1;
w->force = 1;
dapm_mark_dirty(w);
dapm_mark_dirty(w, "force enable");
return 0;
}