From c5ba37489c4859c80d69b7c0b3f6d104e4338ab0 Mon Sep 17 00:00:00 2001
From: Misael Lopez Cruz <misael.lopez@ti.com>
Date: Fri, 11 Feb 2011 17:51:05 -0600
Subject: [PATCH] --- yaml --- r: 260690 b: refs/heads/master c:
 6bba63b68da7188953bf3cc2e29d1eb4e6a69115 h: refs/heads/master v: v3

---
 [refs]                           |  2 +-
 trunk/sound/soc/codecs/twl6040.c | 62 +++++++++++++++++++++++++++++---
 2 files changed, 58 insertions(+), 6 deletions(-)

diff --git a/[refs] b/[refs]
index 90e27e06cf97..2afc35950734 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e17e4ab8018bf0f18084577243cb6800dadd303c
+refs/heads/master: 6bba63b68da7188953bf3cc2e29d1eb4e6a69115
diff --git a/trunk/sound/soc/codecs/twl6040.c b/trunk/sound/soc/codecs/twl6040.c
index 7845cdb65a4a..c8f7fc28a16d 100644
--- a/trunk/sound/soc/codecs/twl6040.c
+++ b/trunk/sound/soc/codecs/twl6040.c
@@ -79,6 +79,8 @@ struct twl6040_data {
 	int codec_powered;
 	int pll;
 	int non_lp;
+	int hs_power_mode;
+	int hs_power_mode_locked;
 	unsigned int clk_in;
 	unsigned int sysclk;
 	struct snd_pcm_hw_constraint_list *sysclk_constraints;
@@ -651,15 +653,26 @@ static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
 {
 	struct snd_soc_codec *codec = w->codec;
 	struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
+	int ret = 0;
 
-	if (SND_SOC_DAPM_EVENT_ON(event))
+	if (SND_SOC_DAPM_EVENT_ON(event)) {
 		priv->non_lp++;
-	else
+		if (!strcmp(w->name, "Earphone Driver")) {
+			/* Earphone doesn't support low power mode */
+			priv->hs_power_mode_locked = 1;
+			ret = headset_power_mode(codec, 1);
+		}
+	} else {
 		priv->non_lp--;
+		if (!strcmp(w->name, "Earphone Driver")) {
+			priv->hs_power_mode_locked = 0;
+			ret = headset_power_mode(codec, priv->hs_power_mode);
+		}
+	}
 
 	msleep(1);
 
-	return 0;
+	return ret;
 }
 
 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
@@ -964,6 +977,43 @@ static const struct snd_kcontrol_new hfr_mux_controls =
 static const struct snd_kcontrol_new ep_driver_switch_controls =
 	SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
 
+/* Headset power mode */
+static const char *twl6040_headset_power_texts[] = {
+	"Low-Power", "High-Perfomance",
+};
+
+static const struct soc_enum twl6040_headset_power_enum =
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_headset_power_texts),
+			twl6040_headset_power_texts);
+
+static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
+
+	ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
+
+	return 0;
+}
+
+static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
+	int high_perf = ucontrol->value.enumerated.item[0];
+	int ret = 0;
+
+	if (!priv->hs_power_mode_locked)
+		ret = headset_power_mode(codec, high_perf);
+
+	if (!ret)
+		priv->hs_power_mode = high_perf;
+
+	return ret;
+}
+
 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
 	/* Capture gains */
 	SOC_DOUBLE_TLV("Capture Preamplifier Volume",
@@ -982,6 +1032,10 @@ static const struct snd_kcontrol_new twl6040_snd_controls[] = {
 		TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
 	SOC_SINGLE_TLV("Earphone Playback Volume",
 		TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
+
+	SOC_ENUM_EXT("Headset Power Mode", twl6040_headset_power_enum,
+		twl6040_headset_power_get_enum,
+		twl6040_headset_power_put_enum),
 };
 
 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
@@ -1339,7 +1393,6 @@ static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 		if (ret)
 			return ret;
 
-		headset_power_mode(codec, 0);
 		priv->sysclk_constraints = &lp_constraints;
 		break;
 	case TWL6040_SYSCLK_SEL_HPPLL:
@@ -1348,7 +1401,6 @@ static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 		if (ret)
 			return ret;
 
-		headset_power_mode(codec, 1);
 		priv->sysclk_constraints = &hp_constraints;
 		break;
 	default: