---

yaml --- r: 284084 b: refs/heads/master c: f75a8ff h: refs/heads/master v: v3
git-mirror · Jan 9, 2012 · 18ae2e5 · 18ae2e5
1 parent adabc89
commit 18ae2e5
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Showing 3 changed files with 50 additions and 8 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b425b88418e302caf27e9cf44aa987b83c04cb2d
+refs/heads/master: f75a8ff67d161b5166a2c2360bb2ffaefd5eb853
diff --git a/trunk/sound/soc/codecs/cx20442.c b/trunk/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
@@ -324,16 +325,52 @@ 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;
 
 	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/trunk/sound/soc/omap/ams-delta.c b/trunk/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;
 }