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ASoC: ab8500-codec: Move control lock to the driver level 

The ab8500 driver uses a driver specific lock to protect concurrent access
to some of the control put/get handlers and uses the snd_soc_codec mutex for
some others. This patch updates the driver to consistently use the driver
specific lock for all controls. This will allow us to eventually remove the
snd_soc_codec mutex.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-11-09 17:00:57 +01:00 committed by Mark Brown
parent f114040e3e
commit 52ef6284a8
1 changed files with 16 additions and 16 deletions
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32
sound/soc/codecs/ab8500-codec.c
View File

@ -126,13 +126,13 @@ struct ab8500_codec_drvdata_dbg {
/* Private data for AB8500 device-driver */
struct ab8500_codec_drvdata {
struct regmap *regmap;
struct mutex ctrl_lock;
/* Sidetone */
long *sid_fir_values;
enum sid_state sid_status;
/* ANC */
struct mutex anc_lock;
long *anc_fir_values;
long *anc_iir_values;
enum anc_state anc_status;
@ -1129,9 +1129,9 @@ static int sid_status_control_get(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct ab8500_codec_drvdata *drvdata = dev_get_drvdata(codec->dev);
mutex_lock(&codec->mutex);
mutex_lock(&drvdata->ctrl_lock);
ucontrol->value.integer.value[0] = drvdata->sid_status;
mutex_unlock(&codec->mutex);
mutex_unlock(&drvdata->ctrl_lock);
return 0;
}
@ -1154,7 +1154,7 @@ static int sid_status_control_put(struct snd_kcontrol *kcontrol,
return -EIO;
}
mutex_lock(&codec->mutex);
mutex_lock(&drvdata->ctrl_lock);
sidconf = snd_soc_read(codec, AB8500_SIDFIRCONF);
if (((sidconf & BIT(AB8500_SIDFIRCONF_FIRSIDBUSY)) != 0)) {
@ -1185,7 +1185,7 @@ static int sid_status_control_put(struct snd_kcontrol *kcontrol,
drvdata->sid_status = SID_FIR_CONFIGURED;
out:
mutex_unlock(&codec->mutex);
mutex_unlock(&drvdata->ctrl_lock);
dev_dbg(codec->dev, "%s: Exit\n", __func__);
@ -1198,9 +1198,9 @@ static int anc_status_control_get(struct snd_kcontrol *kcontrol,
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct ab8500_codec_drvdata *drvdata = dev_get_drvdata(codec->dev);
mutex_lock(&codec->mutex);
mutex_lock(&drvdata->ctrl_lock);
ucontrol->value.integer.value[0] = drvdata->anc_status;
mutex_unlock(&codec->mutex);
mutex_unlock(&drvdata->ctrl_lock);
return 0;
}
@ -1217,7 +1217,7 @@ static int anc_status_control_put(struct snd_kcontrol *kcontrol,
dev_dbg(dev, "%s: Enter.\n", __func__);
mutex_lock(&drvdata->anc_lock);
mutex_lock(&drvdata->ctrl_lock);
req = ucontrol->value.integer.value[0];
if (req >= ARRAY_SIZE(enum_anc_state)) {
@ -1244,9 +1244,7 @@ static int anc_status_control_put(struct snd_kcontrol *kcontrol,
}
snd_soc_dapm_sync(&codec->dapm);
mutex_lock(&codec->mutex);
anc_configure(codec, apply_fir, apply_iir);
mutex_unlock(&codec->mutex);
if (apply_fir) {
if (drvdata->anc_status == ANC_IIR_CONFIGURED)
@ -1265,7 +1263,7 @@ static int anc_status_control_put(struct snd_kcontrol *kcontrol,
snd_soc_dapm_sync(&codec->dapm);
cleanup:
mutex_unlock(&drvdata->anc_lock);
mutex_unlock(&drvdata->ctrl_lock);
if (status < 0)
dev_err(dev, "%s: Unable to configure ANC! (status = %d)\n",
@ -1294,14 +1292,15 @@ static int filter_control_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct ab8500_codec_drvdata *drvdata = snd_soc_codec_get_drvdata(codec);
struct filter_control *fc =
(struct filter_control *)kcontrol->private_value;
unsigned int i;
mutex_lock(&codec->mutex);
mutex_lock(&drvdata->ctrl_lock);
for (i = 0; i < fc->count; i++)
ucontrol->value.integer.value[i] = fc->value[i];
mutex_unlock(&codec->mutex);
mutex_unlock(&drvdata->ctrl_lock);
return 0;
}
@ -1310,14 +1309,15 @@ static int filter_control_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
struct ab8500_codec_drvdata *drvdata = snd_soc_codec_get_drvdata(codec);
struct filter_control *fc =
(struct filter_control *)kcontrol->private_value;
unsigned int i;
mutex_lock(&codec->mutex);
mutex_lock(&drvdata->ctrl_lock);
for (i = 0; i < fc->count; i++)
fc->value[i] = ucontrol->value.integer.value[i];
mutex_unlock(&codec->mutex);
mutex_unlock(&drvdata->ctrl_lock);
return 0;
}
@ -2545,7 +2545,7 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
(void)snd_soc_dapm_disable_pin(&codec->dapm, "ANC Configure Input");
mutex_init(&drvdata->anc_lock);
mutex_init(&drvdata->ctrl_lock);
return status;
}