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-rw-r--r--sound/soc/codecs/cx20442.c48
-rw-r--r--sound/soc/omap/ams-delta.c8
2 files changed, 49 insertions, 7 deletions
diff --git a/sound/soc/codecs/cx20442.c b/sound/soc/codecs/cx20442.c
index ae55e31bfc72..d5fd00a64748 100644
--- a/sound/soc/codecs/cx20442.c
+++ b/sound/soc/codecs/cx20442.c
@@ -16,6 +16,7 @@
#include <linux/tty.h>
#include <linux/slab.h>
#include <linux/module.h>
+#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/initval.h>
@@ -25,8 +26,8 @@
struct cx20442_priv {
- enum snd_soc_control_type control_type;
void *control_data;
+ struct regulator *por;
};
#define CX20442_PM 0x0
@@ -324,6 +325,38 @@ static struct snd_soc_dai_driver cx20442_dai = {
},
};
+static int cx20442_set_bias_level(struct snd_soc_codec *codec,
+ enum snd_soc_bias_level level)
+{
+ struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec);
+ int err = 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_PREPARE:
+ if (codec->dapm.bias_level != SND_SOC_BIAS_STANDBY)
+ break;
+ if (IS_ERR(cx20442->por))
+ err = PTR_ERR(cx20442->por);
+ else
+ err = regulator_enable(cx20442->por);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ if (codec->dapm.bias_level != SND_SOC_BIAS_PREPARE)
+ break;
+ if (IS_ERR(cx20442->por))
+ err = PTR_ERR(cx20442->por);
+ else
+ err = regulator_disable(cx20442->por);
+ break;
+ default:
+ break;
+ }
+ if (!err)
+ codec->dapm.bias_level = level;
+
+ return err;
+}
+
static int cx20442_codec_probe(struct snd_soc_codec *codec)
{
struct cx20442_priv *cx20442;
@@ -331,9 +364,13 @@ static int cx20442_codec_probe(struct snd_soc_codec *codec)
cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL);
if (cx20442 == NULL)
return -ENOMEM;
- snd_soc_codec_set_drvdata(codec, cx20442);
+ cx20442->por = regulator_get(codec->dev, "POR");
+ if (IS_ERR(cx20442->por))
+ dev_warn(codec->dev, "failed to get the regulator");
cx20442->control_data = NULL;
+
+ snd_soc_codec_set_drvdata(codec, cx20442);
codec->hw_write = NULL;
codec->card->pop_time = 0;
@@ -350,6 +387,12 @@ static int cx20442_codec_remove(struct snd_soc_codec *codec)
tty_hangup(tty);
}
+ if (!IS_ERR(cx20442->por)) {
+ /* should be already in STANDBY, hence disabled */
+ regulator_put(cx20442->por);
+ }
+
+ snd_soc_codec_set_drvdata(codec, NULL);
kfree(cx20442);
return 0;
}
@@ -359,6 +402,7 @@ static const u8 cx20442_reg;
static struct snd_soc_codec_driver cx20442_codec_dev = {
.probe = cx20442_codec_probe,
.remove = cx20442_codec_remove,
+ .set_bias_level = cx20442_set_bias_level,
.reg_cache_default = &cx20442_reg,
.reg_cache_size = 1,
.reg_word_size = sizeof(u8),
diff --git a/sound/soc/omap/ams-delta.c b/sound/soc/omap/ams-delta.c
index 3e523a7a9efb..a67f4370bc9f 100644
--- a/sound/soc/omap/ams-delta.c
+++ b/sound/soc/omap/ams-delta.c
@@ -431,22 +431,20 @@ static int ams_delta_set_bias_level(struct snd_soc_card *card,
struct snd_soc_dapm_context *dapm,
enum snd_soc_bias_level level)
{
- struct snd_soc_codec *codec = card->rtd->codec;
-
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
case SND_SOC_BIAS_STANDBY:
- if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
+ if (card->dapm.bias_level == SND_SOC_BIAS_OFF)
ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_NRESET,
AMS_DELTA_LATCH2_MODEM_NRESET);
break;
case SND_SOC_BIAS_OFF:
- if (codec->dapm.bias_level != SND_SOC_BIAS_OFF)
+ if (card->dapm.bias_level != SND_SOC_BIAS_OFF)
ams_delta_latch2_write(AMS_DELTA_LATCH2_MODEM_NRESET,
0);
}
- codec->dapm.bias_level = level;
+ card->dapm.bias_level = level;
return 0;
}