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ASoC: DAPM: Add APIs to create individual DAPM controls. 

The topology core needs to be able to create individual widget controls at
runtime and driver init. Add a regular locked and unlocked API calls to
facilitate this requirement.

The unlocked call is used by the topology core during component driver
probing where the card dapm_mutex is held by the ASoC core and the locked
version at non component driver probe time.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Liam Girdwood 2015-05-25 18:21:17 +01:00 committed by Mark Brown
parent 6b43c2eb9a
commit 02aa78abec
1 changed files with 26 additions and 8 deletions
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34
sound/soc/soc-dapm.c
View File

@ -52,8 +52,8 @@ static int snd_soc_dapm_add_path(struct snd_soc_dapm_context *dapm,
const char *control,
int (*connected)(struct snd_soc_dapm_widget *source,
struct snd_soc_dapm_widget *sink));
static struct snd_soc_dapm_widget *
snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
struct snd_soc_dapm_widget *
snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_widget *widget);
/* dapm power sequences - make this per codec in the future */
@ -350,7 +350,8 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget,
data->value = template.on_val;
data->widget = snd_soc_dapm_new_control(widget->dapm,
data->widget =
snd_soc_dapm_new_control_unlocked(widget->dapm,
&template);
if (!data->widget) {
ret = -ENOMEM;
@ -3264,8 +3265,25 @@ int snd_soc_dapm_put_pin_switch(struct snd_kcontrol *kcontrol,
}
EXPORT_SYMBOL_GPL(snd_soc_dapm_put_pin_switch);
static struct snd_soc_dapm_widget *
struct snd_soc_dapm_widget *
snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_widget *widget)
{
struct snd_soc_dapm_widget *w;
mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
w = snd_soc_dapm_new_control_unlocked(dapm, widget);
if (!w)
dev_err(dapm->dev,
"ASoC: Failed to create DAPM control %s\n",
widget->name);
mutex_unlock(&dapm->card->dapm_mutex);
return w;
}
struct snd_soc_dapm_widget *
snd_soc_dapm_new_control_unlocked(struct snd_soc_dapm_context *dapm,
const struct snd_soc_dapm_widget *widget)
{
struct snd_soc_dapm_widget *w;
@ -3411,7 +3429,7 @@ int snd_soc_dapm_new_controls(struct snd_soc_dapm_context *dapm,
mutex_lock_nested(&dapm->card->dapm_mutex, SND_SOC_DAPM_CLASS_INIT);
for (i = 0; i < num; i++) {
w = snd_soc_dapm_new_control(dapm, widget);
w = snd_soc_dapm_new_control_unlocked(dapm, widget);
if (!w) {
dev_err(dapm->dev,
"ASoC: Failed to create DAPM control %s\n",
@ -3649,7 +3667,7 @@ int snd_soc_dapm_new_pcm(struct snd_soc_card *card,
dev_dbg(card->dev, "ASoC: adding %s widget\n", link_name);
w = snd_soc_dapm_new_control(&card->dapm, &template);
w = snd_soc_dapm_new_control_unlocked(&card->dapm, &template);
if (!w) {
dev_err(card->dev, "ASoC: Failed to create %s widget\n",
link_name);
@ -3700,7 +3718,7 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
dev_dbg(dai->dev, "ASoC: adding %s widget\n",
template.name);
w = snd_soc_dapm_new_control(dapm, &template);
w = snd_soc_dapm_new_control_unlocked(dapm, &template);
if (!w) {
dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
dai->driver->playback.stream_name);
@ -3719,7 +3737,7 @@ int snd_soc_dapm_new_dai_widgets(struct snd_soc_dapm_context *dapm,
dev_dbg(dai->dev, "ASoC: adding %s widget\n",
template.name);
w = snd_soc_dapm_new_control(dapm, &template);
w = snd_soc_dapm_new_control_unlocked(dapm, &template);
if (!w) {
dev_err(dapm->dev, "ASoC: Failed to create %s widget\n",
dai->driver->capture.stream_name);