ENGR00177281-5 WM8962: add record feature

1. add amic and dmic support.
2. update wm8962 codec driver

Signed-off-by: Gary Zhang <b13634@freescale.com>

3 files changed, 527 insertions, 136 deletions

diff --git a/include/linux/fsl_devices.h b/include/linux/fsl_devices.h
index ba66c938ae0a..bec8fe9cd838 100644
--- a/include/linux/fsl_devices.h
+++ b/include/linux/fsl_devices.h
@@ -355,7 +355,10 @@ struct mxc_audio_platform_data {
 	struct clk *ssi_clk[2];
 
 	int hp_gpio;
-	int hp_active_low;	/* headphone irq is active loaw */
+	int hp_active_low;	/* headphone irq is active low */
+
+	int mic_gpio;
+	int mic_active_low;	/* micphone irq is active low */
 
 	int sysclk;
 	const char *codec_name;
diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 7b14746d9336..b8be06b3344a 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -63,6 +63,8 @@ struct wm8962_priv {
 	int fll_fref;
 	int fll_fout;
 
+	u16 dsp2_ena;
+
 	struct delayed_work mic_work;
 	struct snd_soc_jack *jack;
 
@@ -78,6 +80,8 @@ struct wm8962_priv {
 #ifdef CONFIG_GPIOLIB
 	struct gpio_chip gpio_chip;
 #endif
+
+	int irq;
 };
 
 /* We can't use the same notifier block for more than one supply and
@@ -835,7 +839,7 @@ static const struct wm8962_reg_access {
 	[40] = { 0x00FF, 0x01FF, 0x0000 }, /* R40    - SPKOUTL volume */
 	[41] = { 0x00FF, 0x01FF, 0x0000 }, /* R41    - SPKOUTR volume */
 
-	[47] = { 0x000F, 0x0000, 0x0000 }, /* R47    - Thermal Shutdown Status */
+	[47] = { 0x000F, 0x0000, 0xFFFF }, /* R47    - Thermal Shutdown Status*/
 	[48] = { 0x7EC7, 0x7E07, 0xFFFF }, /* R48    - Additional Control (4) */
 	[49] = { 0x00D3, 0x00D7, 0xFFFF }, /* R49    - Class D Control 1 */
 	[51] = { 0x0047, 0x0047, 0x0000 }, /* R51    - Class D Control 2 */
@@ -963,7 +967,7 @@ static const struct wm8962_reg_access {
 	[584] = { 0x002D, 0x002D, 0x0000 }, /* R584   - IRQ Debounce */
 	[586] = { 0xC000, 0xC000, 0x0000 }, /* R586   -  MICINT Source Pol */
 	[768] = { 0x0001, 0x0001, 0x0000 }, /* R768   - DSP2 Power Management */
-	[1037] = { 0x0000, 0x003F, 0x0000 }, /* R1037  - DSP2_ExecControl */
+	[1037] = { 0x0000, 0x003F, 0xFFFF }, /* R1037  - DSP2_ExecControl */
 	[4096] = { 0x3FFF, 0x3FFF, 0x0000 }, /* R4096  - Write Sequencer 0 */
 	[4097] = { 0x00FF, 0x00FF, 0x0000 }, /* R4097  - Write Sequencer 1 */
 	[4098] = { 0x070F, 0x070F, 0x0000 }, /* R4098  - Write Sequencer 2 */
@@ -1969,7 +1973,7 @@ static int wm8962_reset(struct snd_soc_codec *codec)
 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -2325, 75, 0);
 static const DECLARE_TLV_DB_SCALE(mixin_tlv, -1500, 300, 0);
 static const unsigned int mixinpga_tlv[] = {
-	TLV_DB_RANGE_HEAD(7),
+	TLV_DB_RANGE_HEAD(5),
 	0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
 	2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0),
 	3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0),
@@ -1984,10 +1988,127 @@ static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
 static const DECLARE_TLV_DB_SCALE(hp_tlv, -700, 100, 0);
 static const unsigned int classd_tlv[] = {
-	TLV_DB_RANGE_HEAD(7),
+	TLV_DB_RANGE_HEAD(2),
 	0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
 	7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
 };
+static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
+
+static int wm8962_dsp2_write_config(struct snd_soc_codec *codec)
+{
+	return 0;
+}
+
+static int wm8962_dsp2_set_enable(struct snd_soc_codec *codec, u16 val)
+{
+	u16 adcl = snd_soc_read(codec, WM8962_LEFT_ADC_VOLUME);
+	u16 adcr = snd_soc_read(codec, WM8962_RIGHT_ADC_VOLUME);
+	u16 dac = snd_soc_read(codec, WM8962_ADC_DAC_CONTROL_1);
+
+	/* Mute the ADCs and DACs */
+	snd_soc_write(codec, WM8962_LEFT_ADC_VOLUME, 0);
+	snd_soc_write(codec, WM8962_RIGHT_ADC_VOLUME, WM8962_ADC_VU);
+	snd_soc_update_bits(codec, WM8962_ADC_DAC_CONTROL_1,
+			    WM8962_DAC_MUTE, WM8962_DAC_MUTE);
+
+	snd_soc_write(codec, WM8962_SOUNDSTAGE_ENABLES_0, val);
+
+	/* Restore the ADCs and DACs */
+	snd_soc_write(codec, WM8962_LEFT_ADC_VOLUME, adcl);
+	snd_soc_write(codec, WM8962_RIGHT_ADC_VOLUME, adcr);
+	snd_soc_update_bits(codec, WM8962_ADC_DAC_CONTROL_1,
+			    WM8962_DAC_MUTE, dac);
+
+	return 0;
+}
+
+static int wm8962_dsp2_start(struct snd_soc_codec *codec)
+{
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+
+	wm8962_dsp2_write_config(codec);
+
+	snd_soc_write(codec, WM8962_DSP2_EXECCONTROL, WM8962_DSP2_RUNR);
+
+	wm8962_dsp2_set_enable(codec, wm8962->dsp2_ena);
+
+	return 0;
+}
+
+static int wm8962_dsp2_stop(struct snd_soc_codec *codec)
+{
+	wm8962_dsp2_set_enable(codec, 0);
+
+	snd_soc_write(codec, WM8962_DSP2_EXECCONTROL, WM8962_DSP2_STOP);
+
+	return 0;
+}
+
+#define WM8962_DSP2_ENABLE(xname, xshift) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = wm8962_dsp2_ena_info, \
+	.get = wm8962_dsp2_ena_get, .put = wm8962_dsp2_ena_put, \
+	.private_value = xshift }
+
+static int wm8962_dsp2_ena_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+
+	return 0;
+}
+
+static int wm8962_dsp2_ena_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	int shift = kcontrol->private_value;
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+
+	ucontrol->value.integer.value[0] = !!(wm8962->dsp2_ena & 1 << shift);
+
+	return 0;
+}
+
+static int wm8962_dsp2_ena_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	int shift = kcontrol->private_value;
+	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+	int old = wm8962->dsp2_ena;
+	int ret = 0;
+	int dsp2_running = snd_soc_read(codec, WM8962_DSP2_POWER_MANAGEMENT) &
+		WM8962_DSP2_ENA;
+
+	mutex_lock(&codec->mutex);
+
+	if (ucontrol->value.integer.value[0])
+		wm8962->dsp2_ena |= 1 << shift;
+	else
+		wm8962->dsp2_ena &= ~(1 << shift);
+
+	if (wm8962->dsp2_ena == old)
+		goto out;
+
+	ret = 1;
+
+	if (dsp2_running) {
+		if (wm8962->dsp2_ena)
+			wm8962_dsp2_set_enable(codec, wm8962->dsp2_ena);
+		else
+			wm8962_dsp2_stop(codec);
+	}
+
+out:
+	mutex_unlock(&codec->mutex);
+
+	return ret;
+}
 
 /* The VU bits for the headphones are in a different register to the mute
  * bits and only take effect on the PGA if it is actually powered.
@@ -2054,6 +2175,14 @@ static const char *cap_hpf_mode_text[] = {
 static const struct soc_enum cap_hpf_mode =
 	SOC_ENUM_SINGLE(WM8962_ADC_DAC_CONTROL_2, 10, 2, cap_hpf_mode_text);
 
+
+static const char *cap_lhpf_mode_text[] = {
+	"LPF", "HPF"
+};
+
+static const struct soc_enum cap_lhpf_mode =
+	SOC_ENUM_SINGLE(WM8962_LHPF1, 1, 2, cap_lhpf_mode_text);
+
 static const struct snd_kcontrol_new wm8962_snd_controls[] = {
 SOC_DOUBLE("Input Mixer Switch", WM8962_INPUT_MIXER_CONTROL_1, 3, 2, 1, 1),
 
@@ -2082,6 +2211,8 @@ SOC_DOUBLE_R("Capture ZC Switch", WM8962_LEFT_INPUT_VOLUME,
 SOC_SINGLE("Capture HPF Switch", WM8962_ADC_DAC_CONTROL_1, 0, 1, 1),
 SOC_ENUM("Capture HPF Mode", cap_hpf_mode),
 SOC_SINGLE("Capture HPF Cutoff", WM8962_ADC_DAC_CONTROL_2, 7, 7, 0),
+SOC_SINGLE("Capture LHPF Switch", WM8962_LHPF1, 0, 1, 0),
+SOC_ENUM("Capture LHPF Mode", cap_lhpf_mode),
 
 SOC_DOUBLE_R_TLV("Sidetone Volume", WM8962_DAC_DSP_MIXING_1,
 		 WM8962_DAC_DSP_MIXING_2, 4, 12, 0, st_tlv),
@@ -2127,6 +2258,23 @@ SOC_SINGLE_TLV("HPMIXR MIXINR Volume", WM8962_HEADPHONE_MIXER_4,
 
 SOC_SINGLE_TLV("Speaker Boost Volume", WM8962_CLASS_D_CONTROL_2, 0, 7, 0,
 	       classd_tlv),
+
+SOC_SINGLE("EQ Switch", WM8962_EQ1, WM8962_EQ_ENA_SHIFT, 1, 0),
+SOC_DOUBLE_R_TLV("EQ1 Volume", WM8962_EQ2, WM8962_EQ22,
+		 WM8962_EQL_B1_GAIN_SHIFT, 31, 0, eq_tlv),
+SOC_DOUBLE_R_TLV("EQ2 Volume", WM8962_EQ2, WM8962_EQ22,
+		 WM8962_EQL_B2_GAIN_SHIFT, 31, 0, eq_tlv),
+SOC_DOUBLE_R_TLV("EQ3 Volume", WM8962_EQ2, WM8962_EQ22,
+		 WM8962_EQL_B3_GAIN_SHIFT, 31, 0, eq_tlv),
+SOC_DOUBLE_R_TLV("EQ4 Volume", WM8962_EQ3, WM8962_EQ23,
+		 WM8962_EQL_B4_GAIN_SHIFT, 31, 0, eq_tlv),
+SOC_DOUBLE_R_TLV("EQ5 Volume", WM8962_EQ3, WM8962_EQ23,
+		 WM8962_EQL_B5_GAIN_SHIFT, 31, 0, eq_tlv),
+
+WM8962_DSP2_ENABLE("VSS Switch", WM8962_VSS_ENA_SHIFT),
+WM8962_DSP2_ENABLE("HPF1 Switch", WM8962_HPF1_ENA_SHIFT),
+WM8962_DSP2_ENABLE("HPF2 Switch", WM8962_HPF2_ENA_SHIFT),
+WM8962_DSP2_ENABLE("HD Bass Switch", WM8962_HDBASS_ENA_SHIFT),
 };
 
 static const struct snd_kcontrol_new wm8962_spk_mono_controls[] = {
@@ -2192,6 +2340,8 @@ static int sysclk_event(struct snd_soc_dapm_widget *w,
 			struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_codec *codec = w->codec;
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+	unsigned long timeout;
 	int src;
 	int fll;
 
@@ -2211,9 +2361,20 @@ static int sysclk_event(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		if (fll)
+		if (fll) {
+			try_wait_for_completion(&wm8962->fll_lock);
+
 			snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
 					    WM8962_FLL_ENA, WM8962_FLL_ENA);
+
+			timeout = msecs_to_jiffies(5);
+			timeout = wait_for_completion_timeout(&wm8962->fll_lock,
+							      timeout);
+
+			if (wm8962->irq && timeout == 0)
+				dev_err(codec->dev,
+					"Timed out starting FLL\n");
+		}
 		break;
 
 	case SND_SOC_DAPM_POST_PMD:
@@ -2373,6 +2534,31 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
 	}
 }
 
+static int dsp2_event(struct snd_soc_dapm_widget *w,
+		      struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = w->codec;
+	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		if (wm8962->dsp2_ena)
+			wm8962_dsp2_start(codec);
+		break;
+
+	case SND_SOC_DAPM_PRE_PMD:
+		if (wm8962->dsp2_ena)
+			wm8962_dsp2_stop(codec);
+		break;
+
+	default:
+		BUG();
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static const char *st_text[] = { "None", "Right", "Left" };
 
 static const struct soc_enum str_enum =
@@ -2487,7 +2673,7 @@ SND_SOC_DAPM_INPUT("IN4R"),
 SND_SOC_DAPM_INPUT("Beep"),
 SND_SOC_DAPM_INPUT("DMICDAT"),
 
-SND_SOC_DAPM_MICBIAS("MICBIAS", WM8962_PWR_MGMT_1, 1, 0),
+SND_SOC_DAPM_SUPPLY("MICBIAS", WM8962_PWR_MGMT_1, 1, 0, NULL, 0),
 
 SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B, 0, 1, NULL, 0),
 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event,
@@ -2495,6 +2681,11 @@ SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event,
 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8962_CHARGE_PUMP_1, 0, 0, cp_event,
 		    SND_SOC_DAPM_POST_PMU),
 SND_SOC_DAPM_SUPPLY("TOCLK", WM8962_ADDITIONAL_CONTROL_1, 0, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("TEMP_HP", WM8962_ADDITIONAL_CONTROL_4, 2, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("TEMP_SPK", WM8962_ADDITIONAL_CONTROL_4, 1, 0, NULL, 0),
+SND_SOC_DAPM_SUPPLY_S("DSP2", 1, WM8962_DSP2_POWER_MANAGEMENT,
+		      WM8962_DSP2_ENA_SHIFT, 0, dsp2_event,
+		      SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 
 SND_SOC_DAPM_MIXER("INPGAL", WM8962_LEFT_INPUT_PGA_CONTROL, 4, 0,
 		   inpgal, ARRAY_SIZE(inpgal)),
@@ -2505,7 +2696,7 @@ SND_SOC_DAPM_MIXER("MIXINL", WM8962_PWR_MGMT_1, 5, 0,
 SND_SOC_DAPM_MIXER("MIXINR", WM8962_PWR_MGMT_1, 4, 0,
 		   mixinr, ARRAY_SIZE(mixinr)),
 
-SND_SOC_DAPM_AIF_IN("DMIC", NULL, 0, WM8962_PWR_MGMT_1, 10, 0),
+SND_SOC_DAPM_AIF_IN("DMIC_ENA", NULL, 0, WM8962_PWR_MGMT_1, 10, 0),
 
 SND_SOC_DAPM_ADC("ADCL", "Capture", WM8962_PWR_MGMT_1, 3, 0),
 SND_SOC_DAPM_ADC("ADCR", "Capture", WM8962_PWR_MGMT_1, 2, 0),
@@ -2584,17 +2775,19 @@ static const struct snd_soc_dapm_route wm8962_intercon[] = {
 
 	{ "MICBIAS", NULL, "SYSCLK" },
 
-	{ "DMIC", NULL, "DMICDAT" },
+	{ "DMIC_ENA", NULL, "DMICDAT" },
 
 	{ "ADCL", NULL, "SYSCLK" },
 	{ "ADCL", NULL, "TOCLK" },
 	{ "ADCL", NULL, "MIXINL" },
-	{ "ADCL", NULL, "DMIC" },
+	{ "ADCL", NULL, "DMIC_ENA" },
+	{ "ADCL", NULL, "DSP2" },
 
 	{ "ADCR", NULL, "SYSCLK" },
 	{ "ADCR", NULL, "TOCLK" },
 	{ "ADCR", NULL, "MIXINR" },
-	{ "ADCR", NULL, "DMIC" },
+	{ "ADCR", NULL, "DMIC_ENA" },
+	{ "ADCR", NULL, "DSP2" },
 
 	{ "STL", "Left", "ADCL" },
 	{ "STL", "Right", "ADCR" },
@@ -2606,11 +2799,13 @@ static const struct snd_soc_dapm_route wm8962_intercon[] = {
 	{ "DACL", NULL, "TOCLK" },
 	{ "DACL", NULL, "Beep" },
 	{ "DACL", NULL, "STL" },
+	{ "DACL", NULL, "DSP2" },
 
 	{ "DACR", NULL, "SYSCLK" },
 	{ "DACR", NULL, "TOCLK" },
 	{ "DACR", NULL, "Beep" },
 	{ "DACR", NULL, "STR" },
+	{ "DACR", NULL, "DSP2" },
 
 	{ "HPMIXL", "IN4L Switch", "IN4L" },
 	{ "HPMIXL", "IN4R Switch", "IN4R" },
@@ -2646,6 +2841,9 @@ static const struct snd_soc_dapm_route wm8962_intercon[] = {
 
 	{ "HPOUTL", NULL, "HPOUT" },
 	{ "HPOUTR", NULL, "HPOUT" },
+
+	{ "HPOUTL", NULL, "TEMP_HP" },
+	{ "HPOUTR", NULL, "TEMP_HP" },
 };
 
 static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = {
@@ -2662,6 +2860,7 @@ static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = {
 	{ "Speaker Output", NULL, "Speaker PGA" },
 	{ "Speaker Output", NULL, "SYSCLK" },
 	{ "Speaker Output", NULL, "TOCLK" },
+	{ "Speaker Output", NULL, "TEMP_SPK" },
 
 	{ "SPKOUT", NULL, "Speaker Output" },
 };
@@ -2690,10 +2889,12 @@ static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = {
 	{ "SPKOUTL Output", NULL, "SPKOUTL PGA" },
 	{ "SPKOUTL Output", NULL, "SYSCLK" },
 	{ "SPKOUTL Output", NULL, "TOCLK" },
+	{ "SPKOUTL Output", NULL, "TEMP_SPK" },
 
 	{ "SPKOUTR Output", NULL, "SPKOUTR PGA" },
 	{ "SPKOUTR Output", NULL, "SYSCLK" },
 	{ "SPKOUTR Output", NULL, "TOCLK" },
+	{ "SPKOUTR Output", NULL, "TEMP_SPK" },
 
 	{ "SPKOUTL", NULL, "SPKOUTL Output" },
 	{ "SPKOUTR", NULL, "SPKOUTR Output" },
@@ -2770,18 +2971,44 @@ static const int bclk_divs[] = {
 	1, -1, 2, 3, 4, -1, 6, 8, -1, 12, 16, 24, -1, 32, 32, 32
 };
 
+static const int sysclk_rates[] = {
+	64, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536,
+};
+
 static void wm8962_configure_bclk(struct snd_soc_codec *codec)
 {
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
 	int dspclk, i;
 	int clocking2 = 0;
+	int clocking4 = 0;
 	int aif2 = 0;
 
-	if (!wm8962->bclk) {
-		dev_dbg(codec->dev, "No BCLK rate configured\n");
+	if (!wm8962->sysclk_rate) {
+		dev_dbg(codec->dev, "No SYSCLK configured\n");
+		return;
+	}
+
+	if (!wm8962->bclk || !wm8962->lrclk) {
+		dev_dbg(codec->dev, "No audio clocks configured\n");
 		return;
 	}
 
+	for (i = 0; i < ARRAY_SIZE(sysclk_rates); i++) {
+		if (sysclk_rates[i] == wm8962->sysclk_rate / wm8962->lrclk) {
+			clocking4 |= i << WM8962_SYSCLK_RATE_SHIFT;
+			break;
+		}
+	}
+
+	if (i == ARRAY_SIZE(sysclk_rates)) {
+		dev_err(codec->dev, "Unsupported sysclk ratio %d\n",
+			wm8962->sysclk_rate / wm8962->lrclk);
+		return;
+	}
+
+	snd_soc_update_bits(codec, WM8962_CLOCKING_4,
+			    WM8962_SYSCLK_RATE_MASK, clocking4);
+
 	dspclk = snd_soc_read(codec, WM8962_CLOCKING1);
 	if (dspclk < 0) {
 		dev_err(codec->dev, "Failed to read DSPCLK: %d\n", dspclk);
@@ -2851,6 +3078,8 @@ static int wm8962_set_bias_level(struct snd_soc_codec *codec,
 		/* VMID 2*50k */
 		snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
 				    WM8962_VMID_SEL_MASK, 0x80);
+
+		wm8962_configure_bclk(codec);
 		break;
 
 	case SND_SOC_BIAS_STANDBY:
@@ -2879,12 +3108,6 @@ static int wm8962_set_bias_level(struct snd_soc_codec *codec,
 					    WM8962_BIAS_ENA | 0x180);
 
 			msleep(5);
-
-			snd_soc_update_bits(codec, WM8962_CLOCKING2,
-					    WM8962_CLKREG_OVD,
-					    WM8962_CLKREG_OVD);
-
-			wm8962_configure_bclk(codec);
 		}
 
 		/* VMID 2*250k */
@@ -2925,10 +3148,6 @@ static const struct {
 	{ 96000, 6 },
 };
 
-static const int sysclk_rates[] = {
-	64, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536,
-};
-
 static int wm8962_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_pcm_hw_params *params,
 			    struct snd_soc_dai *dai)
@@ -2936,52 +3155,44 @@ static int wm8962_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
-	int rate = params_rate(params);
 	int i;
 	int aif0 = 0;
 	int adctl3 = 0;
-	int clocking4 = 0;
+
+	if (codec->dapm.bias_level != SND_SOC_BIAS_OFF)
+		return 0;
 
 	wm8962->bclk = snd_soc_params_to_bclk(params);
+	if (params_channels(params) == 1)
+		wm8962->bclk *= 2;
+
 	wm8962->lrclk = params_rate(params);
 
 	for (i = 0; i < ARRAY_SIZE(sr_vals); i++) {
-		if (sr_vals[i].rate == rate) {
+		if (sr_vals[i].rate == wm8962->lrclk) {
 			adctl3 |= sr_vals[i].reg;
 			break;
 		}
 	}
 	if (i == ARRAY_SIZE(sr_vals)) {
-		dev_err(codec->dev, "Unsupported rate %dHz\n", rate);
+		dev_err(codec->dev, "Unsupported rate %dHz\n", wm8962->lrclk);
 		return -EINVAL;
 	}
 
-	if (rate % 8000 == 0)
+	if (wm8962->lrclk % 8000 == 0)
 		adctl3 |= WM8962_SAMPLE_RATE_INT_MODE;
 
-	for (i = 0; i < ARRAY_SIZE(sysclk_rates); i++) {
-		if (sysclk_rates[i] == wm8962->sysclk_rate / rate) {
-			clocking4 |= i << WM8962_SYSCLK_RATE_SHIFT;
-			break;
-		}
-	}
-	if (i == ARRAY_SIZE(sysclk_rates)) {
-		dev_err(codec->dev, "Unsupported sysclk ratio %d\n",
-			wm8962->sysclk_rate / rate);
-		return -EINVAL;
-	}
-
 	switch (params_format(params)) {
 	case SNDRV_PCM_FORMAT_S16_LE:
 		break;
 	case SNDRV_PCM_FORMAT_S20_3LE:
-		aif0 |= 0x40;
+		aif0 |= 0x4;
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
-		aif0 |= 0x80;
+		aif0 |= 0x8;
 		break;
 	case SNDRV_PCM_FORMAT_S32_LE:
-		aif0 |= 0xc0;
+		aif0 |= 0xc;
 		break;
 	default:
 		return -EINVAL;
@@ -2992,8 +3203,6 @@ static int wm8962_hw_params(struct snd_pcm_substream *substream,
 	snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_3,
 			    WM8962_SAMPLE_RATE_INT_MODE |
 			    WM8962_SAMPLE_RATE_MASK, adctl3);
-	snd_soc_update_bits(codec, WM8962_CLOCKING_4,
-			    WM8962_SYSCLK_RATE_MASK, clocking4);
 
 	wm8962_configure_bclk(codec);
 
@@ -3262,22 +3471,39 @@ static int wm8962_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
 	snd_soc_write(codec, WM8962_FLL_CONTROL_7, fll_div.lambda);
 	snd_soc_write(codec, WM8962_FLL_CONTROL_8, fll_div.n);
 
+	try_wait_for_completion(&wm8962->fll_lock);
+
 	snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
 			    WM8962_FLL_FRAC | WM8962_FLL_REFCLK_SRC_MASK |
 			    WM8962_FLL_ENA, fll1);
 
 	dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
 
-	/* This should be a massive overestimate */
-	timeout = msecs_to_jiffies(1);
+	ret = 0;
+
+	if (fll1 & WM8962_FLL_ENA) {
+		/* This should be a massive overestimate but go even
+		 * higher if we'll error out
+		 */
+		if (wm8962->irq)
+			timeout = msecs_to_jiffies(5);
+		else
+			timeout = msecs_to_jiffies(1);
+
+		timeout = wait_for_completion_timeout(&wm8962->fll_lock,
+						      timeout);
 
-	wait_for_completion_timeout(&wm8962->fll_lock, timeout);
+		if (timeout == 0 && wm8962->irq) {
+			dev_err(codec->dev, "FLL lock timed out");
+			ret = -ETIMEDOUT;
+		}
+	}
 
 	wm8962->fll_fref = Fref;
 	wm8962->fll_fout = Fout;
 	wm8962->fll_src = source;
 
-	return 0;
+	return ret;
 }
 
 static int wm8962_mute(struct snd_soc_dai *dai, int mute)
@@ -3317,7 +3543,7 @@ static struct snd_soc_dai_driver wm8962_dai = {
 	},
 	.capture = {
 		.stream_name = "Capture",
-		.channels_min = 2,
+		.channels_min = 1,
 		.channels_max = 2,
 		.rates = WM8962_RATES,
 		.formats = WM8962_FORMATS,
@@ -3362,12 +3588,19 @@ static irqreturn_t wm8962_irq(int irq, void *data)
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
 	int mask;
 	int active;
+	int reg;
 
 	mask = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2_MASK);
 
 	active = snd_soc_read(codec, WM8962_INTERRUPT_STATUS_2);
 	active &= ~mask;
 
+	if (!active)
+		return IRQ_NONE;
+
+	/* Acknowledge the interrupts */
+	snd_soc_write(codec, WM8962_INTERRUPT_STATUS_2, active);
+
 	if (active & WM8962_FLL_LOCK_EINT) {
 		dev_dbg(codec->dev, "FLL locked\n");
 		complete(&wm8962->fll_lock);
@@ -3376,9 +3609,21 @@ static irqreturn_t wm8962_irq(int irq, void *data)
 	if (active & WM8962_FIFOS_ERR_EINT)
 		dev_err(codec->dev, "FIFO error\n");
 
-	if (active & WM8962_TEMP_SHUT_EINT)
+	if (active & WM8962_TEMP_SHUT_EINT) {
 		dev_crit(codec->dev, "Thermal shutdown\n");
 
+		reg = snd_soc_read(codec, WM8962_THERMAL_SHUTDOWN_STATUS);
+
+		if (reg & WM8962_TEMP_ERR_HP)
+			dev_crit(codec->dev, "Headphone thermal error\n");
+		if (reg & WM8962_TEMP_WARN_HP)
+			dev_crit(codec->dev, "Headphone thermal warning\n");
+		if (reg & WM8962_TEMP_ERR_SPK)
+			dev_crit(codec->dev, "Speaker thermal error\n");
+		if (reg & WM8962_TEMP_WARN_SPK)
+			dev_crit(codec->dev, "Speaker thermal warning\n");
+	}
+
 	if (active & (WM8962_MICSCD_EINT | WM8962_MICD_EINT)) {
 		dev_dbg(codec->dev, "Microphone event detected\n");
 
@@ -3392,9 +3637,6 @@ static irqreturn_t wm8962_irq(int irq, void *data)
 				      msecs_to_jiffies(250));
 	}
 
-	/* Acknowledge the interrupts */
-	snd_soc_write(codec, WM8962_INTERRUPT_STATUS_2, active);
-
 	return IRQ_HANDLED;
 }
 
@@ -3434,34 +3676,17 @@ int wm8962_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack)
 	snd_soc_jack_report(wm8962->jack, 0,
 			    SND_JACK_MICROPHONE | SND_JACK_BTN_0);
 
-	return 0;
-}
-EXPORT_SYMBOL_GPL(wm8962_mic_detect);
-
-#ifdef CONFIG_PM
-static int wm8962_resume(struct snd_soc_codec *codec)
-{
-	u16 *reg_cache = codec->reg_cache;
-	int i;
-
-	/* Restore the registers */
-	for (i = 1; i < codec->driver->reg_cache_size; i++) {
-		switch (i) {
-		case WM8962_SOFTWARE_RESET:
-			continue;
-		default:
-			break;
-		}
-
-		if (reg_cache[i] != wm8962_reg[i])
-			snd_soc_write(codec, i, reg_cache[i]);
+	if (jack) {
+		snd_soc_dapm_force_enable_pin(&codec->dapm, "SYSCLK");
+		snd_soc_dapm_force_enable_pin(&codec->dapm, "MICBIAS");
+	} else {
+		snd_soc_dapm_disable_pin(&codec->dapm, "SYSCLK");
+		snd_soc_dapm_disable_pin(&codec->dapm, "MICBIAS");
 	}
 
 	return 0;
 }
-#else
-#define wm8962_resume NULL
-#endif
+EXPORT_SYMBOL_GPL(wm8962_mic_detect);
 
 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 static int beep_rates[] = {
@@ -3738,8 +3963,6 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	int ret;
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
 	struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
-	struct i2c_client *i2c = container_of(codec->dev, struct i2c_client,
-					      dev);
 	u16 *reg_cache = codec->reg_cache;
 	int i, trigger, irq_pol;
 	bool dmicclk, dmicdat;
@@ -3829,6 +4052,10 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	 */
 	snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_ENA, 0);
 
+	/* Ensure we have soft control over all registers */
+	snd_soc_update_bits(codec, WM8962_CLOCKING2,
+			    WM8962_CLKREG_OVD, WM8962_CLKREG_OVD);
+
 	/* Ensure that the oscillator and PLLs are disabled */
 	snd_soc_update_bits(codec, WM8962_PLL2,
 			    WM8962_OSC_ENA | WM8962_PLL2_ENA | WM8962_PLL3_ENA,
@@ -3883,6 +4110,9 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	snd_soc_update_bits(codec, WM8962_HPOUTR_VOLUME,
 			    WM8962_HPOUT_VU, WM8962_HPOUT_VU);
 
+	/* Stereo control for EQ */
+	snd_soc_update_bits(codec, WM8962_EQ1, WM8962_EQ_SHARED_COEFF, 0);
+
 	wm8962_add_widgets(codec);
 
 	/* Save boards having to disable DMIC when not in use */
@@ -3911,7 +4141,7 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	wm8962_init_beep(codec);
 	wm8962_init_gpio(codec);
 
-	if (i2c->irq) {
+	if (wm8962->irq) {
 		if (pdata && pdata->irq_active_low) {
 			trigger = IRQF_TRIGGER_LOW;
 			irq_pol = WM8962_IRQ_POL;
@@ -3923,12 +4153,13 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 		snd_soc_update_bits(codec, WM8962_INTERRUPT_CONTROL,
 				    WM8962_IRQ_POL, irq_pol);
 
-		ret = request_threaded_irq(i2c->irq, NULL, wm8962_irq,
+		ret = request_threaded_irq(wm8962->irq, NULL, wm8962_irq,
 					   trigger | IRQF_ONESHOT,
 					   "wm8962", codec);
 		if (ret != 0) {
 			dev_err(codec->dev, "Failed to request IRQ %d: %d\n",
-				i2c->irq, ret);
+				wm8962->irq, ret);
+			wm8962->irq = 0;
 			/* Non-fatal */
 		} else {
 			/* Enable some IRQs by default */
@@ -3953,12 +4184,10 @@ err:
 static int wm8962_remove(struct snd_soc_codec *codec)
 {
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
-	struct i2c_client *i2c = container_of(codec->dev, struct i2c_client,
-					      dev);
 	int i;
 
-	if (i2c->irq)
-		free_irq(i2c->irq, codec);
+	if (wm8962->irq)
+		free_irq(wm8962->irq, codec);
 
 	cancel_delayed_work_sync(&wm8962->mic_work);
 
@@ -3975,7 +4204,6 @@ static int wm8962_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver soc_codec_dev_wm8962 = {
 	.probe =	wm8962_probe,
 	.remove =	wm8962_remove,
-	.resume =	wm8962_resume,
 	.set_bias_level = wm8962_set_bias_level,
 	.reg_cache_size = WM8962_MAX_REGISTER + 1,
 	.reg_word_size = sizeof(u16),
@@ -3998,6 +4226,8 @@ static __devinit int wm8962_i2c_probe(struct i2c_client *i2c,
 
 	i2c_set_clientdata(i2c, wm8962);
 
+	wm8962->irq = i2c->irq;
+
 	ret = snd_soc_register_codec(&i2c->dev,
 				     &soc_codec_dev_wm8962, &wm8962_dai, 1);
 	if (ret < 0)
diff --git a/sound/soc/imx/imx-wm8962.c b/sound/soc/imx/imx-wm8962.c
index 3154cbcd7dfc..2885d3a47889 100644
--- a/sound/soc/imx/imx-wm8962.c
+++ b/sound/soc/imx/imx-wm8962.c
@@ -37,6 +37,7 @@
 #include <mach/dma.h>
 #include <mach/clock.h>
 #include <mach/audmux.h>
+#include <mach/gpio.h>
 
 #include "imx-ssi.h"
 #include "../codecs/wm8962.h"
@@ -45,31 +46,17 @@ struct imx_priv {
 	int sysclk;         /*mclk from the outside*/
 	int codec_sysclk;
 	int dai_hifi;
+	int hp_irq;
+	int hp_status;
+	int amic_irq;
+	int amic_status;
 	struct platform_device *pdev;
 };
-
+unsigned int sample_format = SNDRV_PCM_FMTBIT_S16_LE;
 static struct imx_priv card_priv;
 static struct snd_soc_card snd_soc_card_imx;
 struct clk *wm8962_mclk;
-static struct snd_soc_jack hs_jack;
-
-/* Headphones jack detection DAPM pins */
-static struct snd_soc_jack_pin hs_jack_pins[] = {
-	{
-		.pin = "Headphone Jack",
-		.mask = SND_JACK_HEADPHONE,
-	},
-};
-
-/* Headphones jack detection gpios */
-static struct snd_soc_jack_gpio hs_jack_gpios[] = {
-	[0] = {
-		/* gpio is set on per-platform basis */
-		.name		= "hp-gpio",
-		.report		= SND_JACK_HEADPHONE,
-		.debounce_time	= 200,
-	},
-};
+static struct snd_soc_codec *gcodec;
 
 static int imx_hifi_startup(struct snd_pcm_substream *substream)
 {
@@ -97,6 +84,7 @@ static int imx_hifi_hw_params(struct snd_pcm_substream *substream,
 				     struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct imx_priv *priv = &card_priv;
@@ -104,6 +92,10 @@ static int imx_hifi_hw_params(struct snd_pcm_substream *substream,
 	unsigned int sample_rate = 44100;
 	int ret = 0;
 	u32 dai_format;
+	unsigned int pll_out;
+
+	if (codec->dapm.bias_level != SND_SOC_BIAS_OFF)
+		return 0;
 
 	dai_format = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 		SND_SOC_DAIFMT_CBM_CFM;
@@ -125,16 +117,22 @@ static int imx_hifi_hw_params(struct snd_pcm_substream *substream,
 		return ret;
 
 	sample_rate = params_rate(params);
+	sample_format = params_format(params);
+
+	if (sample_format == SNDRV_PCM_FORMAT_S24_LE)
+		pll_out = sample_rate * 192;
+	else
+		pll_out = sample_rate * 256;
 
-	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL_INT,
+	ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL_MCLK,
 				  WM8962_FLL_MCLK, priv->sysclk,
-				  sample_rate * 768);
+				  pll_out);
 	if (ret < 0)
 		pr_err("Failed to start FLL: %d\n", ret);
 
 	ret = snd_soc_dai_set_sysclk(codec_dai,
 					 WM8962_SYSCLK_FLL,
-					 sample_rate * 768,
+					 pll_out,
 					 SND_SOC_CLOCK_IN);
 	if (ret < 0) {
 		pr_err("Failed to set SYSCLK: %d\n", ret);
@@ -145,17 +143,15 @@ static int imx_hifi_hw_params(struct snd_pcm_substream *substream,
 }
 
 static const struct snd_kcontrol_new controls[] = {
-	SOC_DAPM_PIN_SWITCH("Main Speaker"),
-	SOC_DAPM_PIN_SWITCH("DMIC"),
+	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 };
 
 /* imx card dapm widgets */
 static const struct snd_soc_dapm_widget imx_dapm_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
-
-	SND_SOC_DAPM_MIC("AMIC", NULL),
-
 	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+	SND_SOC_DAPM_MIC("AMIC", NULL),
+	SND_SOC_DAPM_MIC("DMIC", NULL),
 };
 
 /* imx machine connections to the codec pins */
@@ -169,14 +165,150 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{ "MICBIAS", NULL, "AMIC" },
 	{ "IN3R", NULL, "MICBIAS" },
 
+
+	{ "DMIC", NULL, "MICBIAS" },
+	{ "DMICDAT", NULL, "DMIC" },
+
 };
 
+static void headphone_detect_handler(struct work_struct *wor)
+{
+	struct imx_priv *priv = &card_priv;
+	struct platform_device *pdev = priv->pdev;
+	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;
+	char *envp[3];
+	char *buf;
+
+	/*sysfs_notify(&pdev->dev.kobj, NULL, "headphone");*/
+	priv->hp_status = gpio_get_value(plat->hp_gpio);
+
+	/* setup a message for userspace headphone in */
+	buf = kmalloc(32, GFP_ATOMIC);
+	if (!buf) {
+		pr_err("%s kmalloc failed\n", __func__);
+		return;
+	}
+
+	if (priv->hp_status != plat->hp_active_low)
+		snprintf(buf, 32, "STATE=%d", 2);
+	else
+		snprintf(buf, 32, "STATE=%d", 0);
+
+	envp[0] = "NAME=headphone";
+	envp[1] = buf;
+	envp[2] = NULL;
+	kobject_uevent_env(&pdev->dev.kobj, KOBJ_CHANGE, envp);
+	kfree(buf);
+
+	enable_irq(priv->hp_irq);
+
+	return;
+}
+
+static DECLARE_DELAYED_WORK(hp_event, headphone_detect_handler);
+
+static irqreturn_t imx_headphone_detect_handler(int irq, void *data)
+{
+	disable_irq_nosync(irq);
+	schedule_delayed_work(&hp_event, msecs_to_jiffies(200));
+	return IRQ_HANDLED;
+}
+
+static ssize_t show_headphone(struct device_driver *dev, char *buf)
+{
+	struct imx_priv *priv = &card_priv;
+	struct platform_device *pdev = priv->pdev;
+	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;
+
+	/* determine whether hp is plugged in */
+	priv->hp_status = gpio_get_value(plat->hp_gpio);
+
+	if (priv->hp_status != plat->hp_active_low)
+		strcpy(buf, "headphone\n");
+	else
+		strcpy(buf, "speaker\n");
+
+	return strlen(buf);
+}
+
+static DRIVER_ATTR(headphone, S_IRUGO | S_IWUSR, show_headphone, NULL);
+
+static void amic_detect_handler(struct work_struct *work)
+{
+	struct imx_priv *priv = &card_priv;
+	struct platform_device *pdev = priv->pdev;
+	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;
+	char *envp[3];
+	char *buf;
+
+	/* sysfs_notify(&pdev->dev.kobj, NULL, "amic"); */
+	priv->amic_status = gpio_get_value(plat->mic_gpio);
+
+	/* if amic is inserted, disable dmic */
+	if (priv->amic_status != plat->mic_active_low)
+		snd_soc_dapm_nc_pin(&gcodec->dapm, "DMIC");
+	else
+		snd_soc_dapm_enable_pin(&gcodec->dapm, "DMIC");
+
+	/* setup a message for userspace headphone in */
+	buf = kmalloc(32, GFP_ATOMIC);
+	if (!buf) {
+		pr_err("%s kmalloc failed\n", __func__);
+		return;
+	}
+
+	if (priv->amic_status == 0)
+		snprintf(buf, 32, "STATE=%d", 2);
+    else
+		snprintf(buf, 32, "STATE=%d", 0);
+
+	envp[0] = "NAME=amic";
+	envp[1] = buf;
+	envp[2] = NULL;
+	kobject_uevent_env(&pdev->dev.kobj, KOBJ_CHANGE, envp);
+	kfree(buf);
+
+	enable_irq(priv->amic_irq);
+}
+
+static DECLARE_DELAYED_WORK(amic_event, amic_detect_handler);
+
+static irqreturn_t imx_amic_detect_handler(int irq, void *data)
+{
+	disable_irq_nosync(irq);
+	schedule_delayed_work(&amic_event, msecs_to_jiffies(200));
+	return IRQ_HANDLED;
+}
+
+static ssize_t show_amic(struct device_driver *dev, char *buf)
+{
+	struct imx_priv *priv = &card_priv;
+	struct platform_device *pdev = priv->pdev;
+	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;
+
+	/* determine whether amic is plugged in */
+	priv->amic_status = gpio_get_value(plat->hp_gpio);
+
+	if (priv->amic_status != plat->mic_active_low)
+		strcpy(buf, "amic\n");
+	else
+		strcpy(buf, "dmic\n");
+
+	return strlen(buf);
+}
+
+static DRIVER_ATTR(amic, S_IRUGO | S_IWUSR, show_amic, NULL);
+
 static int imx_wm8962_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
-	int ret;
+	struct imx_priv *priv = &card_priv;
+	struct platform_device *pdev = priv->pdev;
+	struct mxc_audio_platform_data *plat = pdev->dev.platform_data;
+
+	gcodec = rtd->codec;
 
-/* Add imx specific widgets */
+	/* Add imx specific widgets */
 	snd_soc_dapm_new_controls(&codec->dapm, imx_dapm_widgets,
 				  ARRAY_SIZE(imx_dapm_widgets));
 
@@ -188,24 +320,15 @@ static int imx_wm8962_init(struct snd_soc_pcm_runtime *rtd)
 
 	snd_soc_dapm_sync(&codec->dapm);
 
-	if (hs_jack_gpios[0].gpio != -1) {
-		/* Jack detection API stuff */
-		ret = snd_soc_jack_new(codec, "Headphone Jack",
-					   SND_JACK_HEADPHONE, &hs_jack);
-		if (ret)
-			return ret;
+	if (plat->mic_gpio != -1) {
 
-		ret = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pins),
-					hs_jack_pins);
-		if (ret) {
-			printk(KERN_ERR "failed to call  snd_soc_jack_add_pins\n");
-			return ret;
-		}
+		priv->amic_status = gpio_get_value(plat->mic_gpio);
 
-		ret = snd_soc_jack_add_gpios(&hs_jack,
-				ARRAY_SIZE(hs_jack_gpios), hs_jack_gpios);
-		if (ret)
-			printk(KERN_WARNING "failed to call snd_soc_jack_add_gpios\n");
+		/* if amic is inserted, disable DMIC */
+		if (priv->amic_status != plat->mic_active_low)
+			snd_soc_dapm_nc_pin(&gcodec->dapm, "DMIC");
+		else
+			snd_soc_dapm_enable_pin(&gcodec->dapm, "DMIC");
 	}
 
 	return 0;
@@ -283,8 +406,43 @@ static int __devinit imx_wm8962_probe(struct platform_device *pdev)
 	}
 
 	priv->sysclk = plat->sysclk;
-	hs_jack_gpios[0].gpio = plat->hp_gpio;
-	hs_jack_gpios[0].invert = plat->hp_active_low;
+	priv->hp_irq = gpio_to_irq(plat->hp_gpio);
+	priv->amic_irq = gpio_to_irq(plat->mic_gpio);
+
+	if (plat->hp_gpio != -1) {
+		ret = request_irq(priv->hp_irq,
+					imx_headphone_detect_handler,
+					IRQ_TYPE_EDGE_BOTH, pdev->name, priv);
+
+		if (ret < 0) {
+			ret = -EINVAL;
+			return ret;
+		}
+
+		ret = driver_create_file(pdev->dev.driver,
+						&driver_attr_headphone);
+		if (ret < 0) {
+			ret = -EINVAL;
+			return ret;
+		}
+	}
+
+	if (plat->mic_gpio != -1) {
+		ret = request_irq(priv->amic_irq,
+					imx_amic_detect_handler,
+					IRQ_TYPE_EDGE_BOTH, pdev->name, priv);
+
+		if (ret < 0) {
+			ret = -EINVAL;
+			return ret;
+		}
+
+		ret = driver_create_file(pdev->dev.driver, &driver_attr_amic);
+		if (ret < 0) {
+			ret = -EINVAL;
+			return ret;
+		}
+	}
 
 	return ret;
 }